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The structure feature types that volunteers are currently collecting include schools, colleges and universities, fire and EMS stations, law enforcement, prisons and correctional facilities, hospitals, ambulance services, cemeteries, and post offices. Volunteers can collect and update the 10 different structure feature types in all 50 states, as well as in Puerto Rico and the U.S. Virgin Islands.

See our structure list for a quick summary of what these points entail.  Click on the links below for additional information on each structure type.  

 

 School

The Guidelines define School as follows:

A building or building complex used as a learning center for children grades kindergarten through high school.

INCLUDES: Public, private, alternative, and juvenile hall schools. School types include elementary schools, middle schools, high schools, and private K‐12 schools.

DOES NOT INCLUDE: preschools, stand-alone kindergartens (i.e., no classes higher than kindergarten), daycares, or headstart programs.


What is a school? 

A school is a building where children are taught in any grade from K through 12.

What types of schools should I collect?

Schools are typically divided into three separate categories based on grade levels offered: Elementary, Middle, and High school. We also include a fourth category (i.e., General School) for those schools whose grade levels do not fall into one of these categories. This is most often the case for schools that combine two or more categories into one organization, such as K-12 schools.   

It is important to note that there is no ultimate black-and-white definition for what category a school falls in. Each school district structures their schools in a unique way, and this structure is the ultimate deciding factor of what category a school falls into.

Here are some general guidelines for what each school category entails:

  • Elementary School: A school for the beginning years of a child's education, often including kindergarten. Does not include combined elementary and middle schools (e.g., K-8 schools), K-12 schools, or any schools where kindergarten is the highest (or only) level offered. Schools covering grades K-8 or grades K-12 should be categorized as a General School. Schools offering PreK-K or K-only are considered preschools and should be deleted.

  • Middle School: A school between elementary school and high school; levels generally include grades 6th through 8th. However, grades 5th through 8th or 6th through 9th may occur in some states.  Does not include schools extending beyond the 8th grade or schools serving 5th grade and below (e.g., PreK-5, K-5, K-12, or 6-12). Schools covering K-12 or 6-12 should be categorized as a General School.

  • High School: A secondary school attended after middle school that usually goes through grade 12. A high school diploma is offered upon graduation from this type of school. Does not include schools that include 8th grade or lower (e.g., K-7), or schools that include grades in addition to the traditional high school grades (e.g., K-12 or 6-12).  Schools covering K-12 or 6-12 should be categorized as a General School.

  • General School: A building or building complex that offers education for children in grades kindergarten through high school. Includes schools that do not fall into a specific category, such as K-8, K-12, or 6-12 schools.


EXAMPLE: If a school does not self-identify, the table below provides a few scenarios that you might encounter:

School District A

K-5

Elementary School

6-8

Middle School

9-12

High School

School District B

K-8

General School

9-12

High School

School District C

K-6

Elementary School

6-12

General School


Check out our Structures List or this Decision Tree for more on what category a school falls under.


Where do I place a school structure point?
Most schools typically have one building and the point should be placed at the center of the building. If a school has multiple buildings as part of the same complex, place the point at the center of the complex.

Many schools, especially rural schools, have multiple institutions all in one building. Should these be depicted as one school, or multiple schools (elementary school, middle school, high school)? This generally is decided based on information from the school website or the state department of education website. If these websites list separate schools at the same address, then add one point for each school, with each point placed within the footprint of the building. Our March 2019 Newsletter contains an article titled Rare Find: 4 High Schools in One! that walks users through this very scenario.


For more information on how to identify a school building, check out the “Aerial Photo Interpretation Part 9: Schools” article in our March 2019 Newsletter.

Where can I find authoritative lists of schools?

The best place to find information about a school is on a dedicated school and/or district website. These websites are the first to reflect any changes in pertinent information (e.g., name, address, etc.) and therefore are typically the most accurate. If a dedicated school and/or district website cannot be found (as may be the case for smaller, rural, and/or private schools), there are many secondary sources that compile information from authoritative sources into an aggregate list. Examples of secondary sources include:

  • State department of education websites: These typically include all of the licensed public schools in the state. They may also include private schools, but in general they should not be considered a comprehensive list of private schools because they may only include schools whose school administrators have requested to be on the list.

  • The National Center for Education Statistics (NCES) maintains a database of public and private schools. This database is a result of a voluntary survey results for the Department of Education. Public schools are surveyed every year. Private schools are surveyed every 2 years. The NCES website allows a search for private or public schools by city, county, or state.

  • The National Association of Independent Schools has an online searchable database.

  • The National Parochial Schools Association lists parochial schools by state.


Insiders Tip: Many schools have websites or official Facebook pages that include a news section or event calendar. Before assuming all the information is valid, check to see if recent posts have been made to the page’s news or events section. There are scenarios where a school may have recently closed but its website is still online.  Checking the news or events sections for recent updates helps to verify if the school is still in operation.

For example, M J Jones Elementary School in Richmond, VA has a calendar page on its website. The calendar shows current events at the school, thereby indicating that the school is still in operation.  

Check out our Authoritative Sources List for more on the types of sources that are acceptable.


 College and University

The Guidelines define College and University as follows:

A building or building complex used as an institution of higher learning that grants a degree at the completion of a course of studies.

  • INDICATORS: offers associates degrees or higher.

INCLUDES: 4‐year universities and community colleges, junior colleges requiring a high school diploma or equivalent for admission.

DOES NOT INCLUDE: Technical / trade schools offering technical training for job-specific certifications.

 

What is a College / University? 

The key indicator of a college or university is that the institution grants degrees.  There are 4 types of degrees: Associate, Bachelor, Master, and Doctoral.

Degree-granting is generally regulated by the States, with each having a higher education agency to oversee degree-granting institutions. The U.S. Department of Education has a list of these higher education agencies that maintain lists of the degree-granting institutions in their state.


For the most part, this degree-granting requirement leaves out vocational schools (also called trade schools, career schools, or technical schools), which generally grant certificates but not degrees; these should be captured as a Technical / Trade School. An exception is technical colleges which do grant degrees; these should be captured as a College / University structure.  

It is important to note that we are not collecting university extension locations whose primary mission is to perform community outreach. If a university manages an alternative campus and its title includes the term “Extension”, this point can be collected so long as this campus serves students enrolled in a degree-granting program. If the alternative “Extension” campus only provides education and outreach to the community, this does not meet our definition of a College / University and therefore is not a point we would collect. Check out this Q&A entry for more on how to handle University extensions.

Where can I find authoritative lists of College / University structures?
An institution’s individual website is the best place to find authoritative information on a College / University.  Therefore,
it is highly recommended that users confirm the information on these lists by locating the website for each College / University listed.

The closest thing to a national list may be the National Center for Education Statistics (NCES). NCES maintains a database of primary, secondary, and higher education (aka, college) institutions. Users can search the NCES database for colleges.

Each state also has a higher education agency that may include a list of colleges and universities within their state.  

Check out our Authoritative Sources List for more on the types of sources that are acceptable.

Where do I place a College / University structure point?
In general, each college and/or university campus should be represented by a single structure point placed on the administrative building for that institution. If one does not have firsthand knowledge of the location of the administration building, it can usually be found on the school's campus map. If the location of the administration building cannot be determined, then place the structure point on a building at the center of the campus.A university campus may contain several colleges or schools (i.e., College of Arts, College of Sciences, School of Business, School of Medicine), but so long as these are units of the same university and located on the same campus, then they should be not be added as separate points. One point would represent the university or college. However in some cases, separate institutions may share the same campus (for example, the Auraria campus in Denver, Colorado is home to Metropolitan State University of Denver, the University of Colorado Denver, and the Community College of Denver) – in this case each institution should be represented by a separate point. Some colleges, especially in an urban environment, may have multiple campuses or widely dispersed buildings. In general a separate campus should be represented by its own structure point. However, if a dispersed college location consists of a single building, or a few rooms in a single building, then use your best judgment as to whether it is important enough to be considered a campus and therefore justify a separate structure point. Medical schools that are co-located with hospitals should be represented by a separate College / University structure point. The associated hospital would be represented as a separate Hospital structure point.


 Fire Station / EMS Station

The Guidelines define Fire Stations and EMS Stations as follows:

A building that contains fire‐fighting equipment and personnel or a provider of combined fire‐fighting and rescue services.

  • INDICATORS: A facility that houses a fire engine and from which fire response occurs; can be a station or substation.

INCLUDES: Buildings that contain fire response equipment and serve as a location to which fire personnel report before being dispatched into the community.  May also provide combined emergency medical services operations and/or rescue services.  

DOES NOT INCLUDE: Ambulance stations not part of fire‐fighting services, locations solely for fire equipment storage (i.e., no fire response from that location), fire hall meeting facilities.

What is a Fire Station/EMS Station?

The basic requirement for a Fire Station/EMS Station is that the structure contains a fire engine. It may or may not also house an ambulance. Fire personnel visit the station on a regular basis to keep the equipment clean and shiny and ready to go, and before being dispatched into the community for an emergency. It may only have volunteer responders and not full time personnel on site.


Where can I find authoritative lists of  Fire Stations?

Fire department web pages are the best source of data, but may not specify the locations of stations. Fire Departments in smaller and/or rural communities may have their own Facebook page in place of a website. Page 6 of our July 2017 Newsletter has an infographic on Facebook as an authoritative source.

County and city websites also often have information about fire departments through their emergency management offices.The US Fire Administration has the most complete nationwide list of fire departments, however this data may be dated and not complete. Their list is the result of a voluntary National Fire Department Census wherein during the years 2001 to 2004 fire departments filled out and handed in survey forms. The USFA is "continuously working to encourage more fire departments to participate in the census," however, since the original census now is almost 20 years old, some of the information is out of date. The list can be downloaded for the entire nation or by state. The list is by fire department, so it will tell you how many stations a Fire Department has, but not where they are. There may be some contact information, such as address, phone number, and website.Check out our Authoritative Sources List for more on the types of sources that are acceptable.


How do I name a Fire Station?

Try to find out the official name of the station; it often has the format: <fire-department-name> <station-name>. For example "Denver Fire Department Station 1". Official station names sometimes have either a "-" or a "/" in the station name, and while the Attribute Guidelines say that special characters should be avoided, they can be used if necessary to document an official fire station name.

Check out our Name and Address Formatting guide for more on how to properly name fire stations.


 Law Enforcement

The Guidelines define Law Enforcement as follows:

A building that houses police stations or sheriffs’ offices.

INCLUDES: Police stations, sheriffs' offices, state troopers or highway patrols operations locations, police stations on University/College campuses, Texas Rangers operations locations.

DOES NOT INCLUDE: Police offices in shopping malls or strip malls, federal law enforcement, park police (other than US Park Police in Washington D.C.), school police, railroad police, postal inspectors, locations with administrative functions only.


What is a Law Enforcement structure? 
Law Enforcement structures consist of the offices of state troopers, county sheriffs, and city police officers. However, if a county sheriff's deputy works out of his house in a rural area, we do not include that location as a structure point (i.e., we never capture private residences as structure points).


When editing Law Enforcement structures, you may occasionally come across a county jail with the symbol of a Law Enforcement structure. If you encounter any of these points, you can either skip or delete them. This is because these are not structures we are actively collecting. Check out this Q&A for more on how to handle county jails.

Sometimes the sheriff’s primary office is housed in the same building as the county jail. If the sheriff’s office is in the same building as the jail and dispatches into the community, then this is a point that we would collect as a Law Enforcement structure. However, if the sheriff’s only purpose in the building is jail security (i.e., it does not dispatch officers into the community), then this is considered part of the county jail and therefore is not a point we are collecting.  

Similarly, be aware of bailiffs. You may come across law enforcement points that are close to (or located at) county courthouses. When reviewing these points, make sure to determine whether officers at these locations dispatch into the greater community or if their primary role is to assist the courts. If that location’s only duty is to assist the courts, then it is considered a bailiff. Since we are not collecting bailiffs at this time, please use the Comments field to document your findings and delete these points.

Our Q&A community includes several entries for Law Enforcement structures, including entries about School Police, County Jails, Community Oriented Police Houses, Constables and Peace Officers, and Park Police.

Where can I find authoritative lists of Law Enforcement structures? 
There are no authoritative lists of Law Enforcement structures.

County and city websites are the best sources for this information and typically have a separate page for law enforcement offices within their boundaries. Law enforcement offices in smaller and/or rural communities may have their own Facebook page in place of a website. Page 6 of our July 2017 Newsletter contains an infographic on properly using Facebook as an authoritative source.

Check out our Authoritative Sources List for more on the types of sources that are acceptable.

Where do I place a Law Enforcement structure?
Most Law Enforcement structures have one building. If this is the case, place the point at the center of the building. If the law enforcement office operates out of the same building as a City Hall / Town Hall and/or Fire Department, space the points out on the building so that they are not overlapping.

For more information on how to identify a Law Enforcement structure, check out the “Aerial Photo Interpretation Part 7: Law Enforcement” article in our September 2018 Newsletter.

How should I name Law Enforcement structures? 
County sheriff's offices should be named like this: Jefferson County Sheriff's Office. Police departments for smaller cities generally have only one office which should be named like this: Lakewood Police Department; but larger cities may have Precinct or Division offices which would be named like this: Denver Police Department District 1 Station.
Check out our Name and Address Formatting guide for more on how to properly name Law Enforcement structures.


 Prison / Correctional Facility

The Guidelines define Prison / Correctional Facility as follows:

A building or complex for the confinement of persons convicted of crimes.

  • INDICATORS: medium and maximum security facilities; long-term facilities.

INCLUDES: State or federal prisons, long-term juvenile detention facilities. Jails included only if they have long-term sentences and are a medium or maximum security facility.

DOES NOT INCLUDE: Short‐term holding facilities such as a jail at a police station or court house, sheriff’s department or sheriff’s office, half-way houses, minimum security locations, prison camps or work sites, administrative offices.


What is a Prison / Correctional Facility? 
A Prison / Correctional Facility consists of federal and state prisons and juvenile detention facilities. It is important to note that city and county jails are not includedCheck out this Q&A for how to handle county jails.

Where can I find authoritative lists of Prison / Correctional Facilities? 

The Federal Bureau of Prisons website provides an authoritative list of federal prison facilities. Only Institutions, Private Facilities, and Correctional Complexes should be included -- not offices or training centers.

State Department of Corrections websites also list private and public prisons in each state.

Check out our Authoritative Sources List for more on the types of sources that are acceptable.

Where do I place a Prison / Correctional Facility structure point? 
If a prison has a single large building, place the point at the center of the building. If the prison does not have a distinctive single building, then place the point at the center of the prison facility.

If a prison complex has more than one named facility, each with its own separate grounds or building, then place a prison point on each facility. For example, the Florence Federal Correctional Complex has three facilities (Florence Federal Correctional Institution, Florence High Security United States Penitentiary, and Florence Administrative Maximum United States Penitentiary), and therefore should be represented by three structure points. It may be difficult to determine from aerial imagery which facility is which, but you may be able to tell from Google Street View™, from an online facility map, or by examining a photo of the prison entrance (if it exists on the prison webpage) and comparing this to the building footprint in the satellite image. If it cannot be determined which facility is which, then place all facility points adjacent to each other near the centroid of the entire facility.

For more information on how to identify a Prison / Correctional Facility, check out the “Aerial Photo Interpretation Part 4: Prisons / Correctional Facilities” article in our March 2018 Newsletter.

How do I name a Prison/Correctional Facility? 
Use the name of the facility as it appears on the facility website. For federal prisons, the website uses several formats for names, but the format where the prison name comes last is preferred (e.g., United States Penitentiary Florence High).


 Hospital / Medical Center

The Guidelines define Hospital / Medical Center as follows:

A building or building complex providing general medical or surgical inpatient care.

  • INDICATORS: Inpatient (overnight) services.

INCLUDES: General hospitals, specialty hospitals (such as children's, cancer, maternity, substance abuse, psychiatric, and rehabilitation hospitals), Veterans Administration hospitals, infirmaries offering inpatient services.

DOES NOT INCLUDE: Psychiatric or behavioral facilities that only provide outpatient services, long‐term care medical centers or nursing homes, walk-in centers or outpatient clinics, imaging centers, medical doctors' offices, rehabilitation centers.



What is a Hospital / Medical Center?
A Hospital / Medical Center is a facility which provides inpatient (overnight) care. In general, these are regulated by state health departments as licensed hospitals.  Common hospital types include critical access, general, long-term care, psychiatric and rehabilitation hospitals.


Where can I find authoritative lists of Hospital / Medical Centers? 
Refer to state health departments for authoritative lists of hospitals in a given state. There are many types of medical facilities, but only those that are listed as hospitals should be included.

The US Department of Veterans Affairs also maintains an authoritative list of their facilities. Only VA Health Care System and VA Medical Centers should be included. Outpatient VA facilities are not included.

A hospital’s individual website is still the best place to find authoritative and current information on a Hospital / Medical Center. Therefore, it is recommended that users confirm the information on these lists by locating the website for each hospital listed.

Check out our Authoritative Sources List for more on the types of sources that are acceptable.

Where should I place a Hospital / Medical Center facility structure point?
Some hospitals have only one building, in which case the point should be placed at the center of this building. Larger hospitals may either have a larger complex building, or consist of several individual buildings on a medical campus. If a hospital has multiple buildings as part of the same campus, place the point at the center of the campus.

For more information on how to identify a Hospital / Medical Center facility, check out the “Aerial Photo Interpretation Part 5: Hospitals” article in our May 2018 Newsletter.


 Ambulance Services

The Guidelines define Ambulance Services as follows:

A building used to house ambulances and from which medically-trained staff are dispatched to transport emergency patients and administer emergency medical treatment (en route or at the scene).

INCLUDES: Air ambulances, ground ambulances, ambulances not operated by fire departments but co-housed at a fire station, rescue vehicles not associated with fire departments.

DOES NOT INCLUDE: Ambulance services operated by and housed in a fire station, ambulances for transportation only (not providing medical care), special needs transports, ambulances operated by hospitals/medical centers, ambulance dispatch centers, urgent care centers, freestanding emergency facilities.



What is an Ambulance Service? 
An ambulance service facility is a building that houses vehicles and personnel to transport emergency patients and administer emergency medical treatment but does not include ambulances operated by fire departments or hospitals.

If an ambulance is located in a fire station and is operated by fire department personnel, it is considered part of the fire department and not a separate ambulance service for our purposes. However, it is not uncommon for contract, private or non-profit ambulance services to operate out of fire department stations through a government contract or mutual aid agreement. (The fire department’s website usually specifies the relationship between the two entities.) These facilities, which are not operated by the fire department personnel, meet the criteria for ambulance collection.


Both for-profit and non-profit ambulance services may operate out of their own facilities separate from fire departments and are included as ambulance service facilities.

Do we include air ambulance (helicopters and fixed-wing aircraft) locations as Ambulance Service locations? 
Air ambulances are included as ambulance service locations; however it may be difficult to determine where helicopters and fixed-wing aircraft are stationed. Most hospitals have helipads, but these are not home stations for air ambulances. The home stations for air ambulances generally are at airports. State health departments or state emergency management divisions may maintain lists of air ambulance services licensed to operate within their state.


Where can I find authoritative lists of Ambulance Services? 
Ambulance services generally are licensed by counties or by state, so you may find information listed on government websites. State health departments or state emergency management divisions may also may maintain lists of ambulance services.

Check out our Authoritative Sources List for more on the types of sources that are acceptable.
Where do I place an Ambulance Services structure point?
Most ambulance services structures have one building. If this is the case, place the point at the center of the building. If the structure operates out of the same building as a Fire Department and/or Law Enforcement facility, distribute the points on the building so that they are not overlapping.

Stations can generally be recognized in Aerial Imagery or in Google Street View™ because the stations have large bays with overhead doors and large concrete pads outside where the ambulances can park.

For more information on how to identify an ambulance services structure, check out the “Aerial Photo Interpretation Part 6: Ambulance Services” article in our July 2018 Newsletter.


 Cemetery

The Guidelines define Cemetery as follows:

A place or area set apart for burying the dead or storing ashes.

  • INDICATORS: Human interments.

INCLUDES: Burial grounds, graves, graveyards, memorial gardens, mausoleums, columbariums, and crypts.

DOES NOT INCLUDE: Graves inundated by lakes or reservoirs, historic cemeteries, pet cemeteries, unnamed cemeteries and/or graves, funeral homes.


What is a Cemetery? 
Cemeteries are defined as places where the dead are buried, including graveyards, burial sites, and columbariums. Pet cemeteries are not included.

Single graves within burial sites are generally not included, unless they are the graves of famous historical figures. An example of a single grave for a famous historical figure is the burial marker for Thomas Jefferson (i.e., the Jefferson Tomb) outside of his former Monticello residence.
Where does our Cemetery database originate?
There are two principal sources of cemetery data in the TNMCorps Structures database: US Geological Survey (USGS) Topographic maps and the USGS Geographic Names Information System (GNIS).

US Geological Survey topographic maps were produced from about 1879 to 1992 using a combination of aerial photographs and on-the-ground surveys and inventories. In addition to large more-modern cemeteries, many small cemeteries of historical significance were mapped, and these are included in our database.
The GNIS has cemetery information built over time from a variety of sources. One example of this is the USGenWeb Project. This volunteer project, started in 1996, serves as a repository of internet resources for genealogical research in every county and state in the country.

Because many historical cemeteries have been carefully documented and included in the database, please do not remove cemeteries from the database simply because they are not visible in aerial imagery. Only remove cemeteries if the imagery shows without a doubt that the landscape has been altered (for example, a shopping center now exists where the cemetery used to be), or if you have local or on-the-ground knowledge that the cemetery has been moved or destroyed, or that the graves have been disinterred.

What are authoritative sources of information about cemetery locations?

There is no single complete authoritative source of information about cemeteries, but there are many internet resources that together can provide a fairly complete list of cemeteries:

  • The Find A Grave website has quite a comprehensive list; you can search for cemeteries by name or county. The website provides latitude and longitude for most cemeteries.
  • The BillionGraves website has coordinates for cemeteries in its database, and shows the location of the cemetery on aerial imagery. You can search their database by county.

  • The USGenWeb Archives provides lists of cemeteries by state and county. It also provides cemetery lists as part of its Tombstone Transcription Project.

  • The topoView application contains an archive of older USGS topographic maps which can be downloaded and viewed on a computer. These older maps show the locations of many (not all) cemeteries. It is particularly useful for locating older cemeteries in rural areas. Note that if a cemetery is not shown on an older map, this does not mean that the cemetery does not exist; it just may not have been validated by field crews at the time. It is also important to note that not all cemeteries on the older topographic maps were named. Therefore, if a cemetery is shown on a map from the topoView archive but is not named, try using one of the other sources listed here to identify the cemetery’s proper name.  

  • The Churches and Cemeteries website lists cemeteries by state and county.

  • Local historical or genealogical societies may have lists of cemeteries as well.


Check out our Authoritative Sources List for more on the types of sources that are acceptable.

Where do I place a cemetery structure point?

The general rule is to place the cemetery structure point at the center of the burial grounds. A single point should be placed even if a cemetery has a combination of facilities (e.g., graves, mausoleums, columbariums).


Some columbarium-only facilities are located in church buildings, although their presence may be difficult to ascertain or validate; they should be represented by a point at the center of the church structure.

For more information on how to identify a cemetery, check out the “Aerial Photo Interpretation Part 1: Cemeteries” article in our September 2017 Newsletter.
What Address should be given for rural cemeteries?
Many cemeteries do not have addresses, therefore, addresses are not required for cemetery points. In cases where no numbered street address seems to be assigned:

  1. If there is a road intersection nearby, add the road names, for example, "County Road 10 and US Highway 20".
  2. If there is only a single road nearby, use only the name of the nearest road, for example, "County Road 10".
  3. If no road is nearby, leave the Address blank, and fill in only the nearest city (and zipcode, if you know it). The State is the only required field when address information is not available.

Check out this Q&A for more on cemetery addresses.

Why do we collect information about cemeteries?

The original reason we started collecting information about cemeteries is that they were prominent feature types shown on USGS topographic maps. But another reason is that there are many people that are interested in history and genealogy and find this information useful. One of our volunteers says:

"...as a lifelong genealogist, I have been frustrated with the gap between local information about cemeteries and what is easily available in a consistent, reliable, national format. I have benefited from hundreds of thousands of hours of work by others and this is the way I am giving back."


 Post Office

The Guidelines define Post Office as follows:

An official facility of the U.S. Postal Service used for processing and distributing mail and other postal material.

  • INDICATORS: Official logo of U.S. Post Office.

INCLUDES: USPS official post offices, post office stations, branch post offices, community post offices (CPOs), village post offices (VPOs), postal annexes with a public post office, remotely managed post offices (RMPOs), and part time post offices (PTPOs).

DOES NOT INCLUDE: Mail drop off locations (blue US Mail box), carrier annexes with no public hours, or contract postal units (CPUs, which are often in commercial establishments) that do not have their own zip code.



What is a Post Office? 

There are quite a few types of Location Types you can choose from, but the USGS guidelines stipulate that only official USPS facilities should be included in the National Structures dataset: this translates to the Post office, Village Post office, and Contract Postal Units location types. To do a search for these three types, select “Post Offices and Approved Postal Providers” from the Location Types list and then click on the Refine search link, and then make sure that only Post Offices, Village Post offices, and Contract Postal Units are checked.

This restricted definition means that many locations that sell stamps or have only automated postal centers or only participate in the PO Box Online program, such as markets, banks, and office and mailing supply stores, do not qualify as Post Offices for the National Structures dataset.


Naming Post Offices: 
 
The guidelines stipulate that the correct way to name a post office is: <name> Post Office, for example “Pueblo Post Office”. Also, to naming the Contract Postal Unit, the correct way is: Name+Contract Postal Unit or Name+CPU. The name is the name that is shown in the USPS website. Occasionally, you will see a Post Office on the USPS website that has a name like “Westminster (Harris Park)”; in this case, name the post office as: "Westminster Post Office Harris Park Station”. .

Editing/Reviewing Post Offices for a city or county


You might want to review all of the Post Offices for a city or county. To do this, go to the USPS Find Locations web page; restrict the search to Post Offices and Village Post Offices, and Contract Postal Units; type in the city of interest; and select a reasonable search radius. Then go through all of the locations and make sure they are in the Structures database. If you are working on a county, then successively type in the names of various cities in that county with a reasonable search radius for each so that when each of your search results are combined you get complete results for the whole county. NOTE: there is a USPS web page for searching for Post Offices within a county, but this search uses an out-of-date-database, so it is recommended not to rely on this county search.


 City Hall / Town Hall

The Guidelines define a City Hall / Town Hall as follows:

A building or building complex that serves as the primary location for a local or municipal government's administrative functions.

INCLUDES: City Halls, Town Halls, Village Halls, Municipal Buildings, Municipal Centers, and City Buildings.

DOES NOT INCLUDE: County, state or federal level administration buildings, historical buildings that are no longer used for government administration.


What is a City Hall / Town Hall? 

A City Hall or Town Hall is the primary administrative building of a township or municipal government.  This may include buildings called City Hall, Town Hall, Village Hall, Municipal Building, Municipal Center, City Building or other name variations. City and Town halls are usually associated with Incorporated Places in the U.S.  Incorporated places are a legally defined entity and may be called city, borough, town, village (depends on the state). There are over 19,000 incorporated places in the U.S. as per the Census Bureau's Boundary and Annexation Survey (BAS). There are no incorporated places in Hawaii or Puerto Rico.

Characteristics of a City Hall / Town Hall may include the building being open to the public, the city or town mayor and council operating out of that building, as well as assorted departments and employees of local governments.  

Please note that this feature class does not include county, state or federal level administration buildings.

Where can I find authoritative lists of City Hall / Town Hall structures?

There are no authoritative lists of City Hall / Town Hall structures.  The best way to confirm a City Hall / Town Hall feature point is to research the official website of the city or township.  

The closest thing to a national list may be a list of cities and townships on Wikipedia.com, however these only include a small portion of the country’s cities and townships.  When using lists like these, it is important that users verify each City Hall / Town Hall with an authoritative source.


Where do I place a City Hall / Town Hall structure point?

Most municipalities or townships have one central building.  If this is the case, place the point at the center of the building.

Some municipalities may have a municipal “campus” of buildings with administrative offices; others may have individual buildings that are geographically distributed throughout the city.  It is important to note that we are not collecting the location of individual city departments.  We are only collecting the primary city/town hall; typically the building that houses the city council and/or mayor’s office. Place the point at the center of this building.


How do I name a City Hall / Town Hall?

Similar to courthouses, try to determine the name of the building when editing City Hall / Town Hall structures.  Contact information on government websites usually includes the building name with the address.  Examples include Denver’s City Council located in the City and County Building, or Cedar Rapids’s Manager’s Office in the City Hall:

Cedar Rapids's Manager's Office in City Hall


Denver's City Council in the City and County Building






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