| Class Code |
Definition |
|---|
| A1 |
Airports. Airport with scheduled commercial flights that also serves as a military installation. |
| A3 |
Airports. Airport with scheduled commercial flights that does not serve as a military installation. |
| A4 |
Airports. Airport without scheduled commercial flights that does not serve as a military installation. |
| A6 |
Airports. Airport without scheduled commercial flights located within a military installation. |
| B0 |
Post Offices Not Corresponding to Other Locational Entities. |
| C1 |
Incorporated Places. An active incorporated place that does not serve as a county subdivision equivalent. |
| C2 |
Incorporated Places. An active incorporated place legally coextensive with a county subdivision but treated as independent of any county subdivision. |
| C3 |
Incorporated Places. A consolidated city. |
| C4 |
Incorporated Places. An active incorporated place with an alternate official common name. |
| C5 |
Incorporated Places. An active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. |
| C6 |
Incorporated Places. An active incorporated place that partially is independent of any county subdivision and serves as a county subdivision equivalent or partially coextensive with a county subdivision but treated as independent of any county subdivision. |
| C7 |
Incorporated Places. An incorporated place that is independent of any county. |
| C8 |
Incorporated Places. The balance of a consolidated city excluding the separately incorporated place(s) within that consolidated government. |
| C9 |
Incorporated Places. An inactive or nonfunctioning incorporated place. |
| D0 |
American Indian Areas. Statistical or legal area administered and/or claimed by two or more American Indian tribes. |
| D1 |
American Indian Areas. Legal federally recognized American Indian area consisting of reservation and associated off-reservation trust land. |
| D2 |
American Indian Areas. Legal federally recognized American Indian area consisting of reservation only. |
| D3 |
American Indian Areas. Legal federally recognized American Indian area consisting of off-reservation trust land only. |
| D4 |
American Indian Areas. Legal state-recognized American Indian area. |
| D6 |
American Indian Areas. Statistical American Indian area defined for a federally recognized tribe that does not have a reservation or off-reservation trust land specifically a tribal designated statistical area or Oklahoma tribal statistical area, but excluding Alaska Native village statistical areas. |
| D7 |
American Indian Areas. A tribal subdivision. |
| D9 |
American Indian Areas. Statistical American Indian area defined for a state-recognized tribe that does not have a reservation or off-reservation trust land, specifically a state-designated tribal statistical area. |
| E1 |
Alaska Native Areas. Statistical area that represents the densely settled portion of an Alaska Native village; an Alaska Native village statistical area. |
| E7 |
Alaska Native Areas. An Alaska Native Regional Corporation. |
| F1 |
Native Hawaiian Areas. Legal Hawaiian home land consisting of lands held in trust for the benefit of Native Hawaiians. |
| H1 |
Counties and County Equivalents. An active county or equivalent feature. |
| H4 |
Counties and County Equivalents. An inactive county or equivalent feature. |
| H5 |
Counties and County Equivalents. A statistical county equivalent feature. |
| H6 |
Counties and County Equivalents. A county that is coextensive with an incorporated place, part of an incorporated place, or a consolidated city and the governmental functions of the county are part of the municipal govenment. |
| M1 |
Federal Facilities. A military or other defense installation that is partially within a census designated place. |
| M2 |
Federal Facilities. A military or other defense installation entirely within a census designated place. |
| M3 |
Federal Facilities. Health care facility. |
| M4 |
Federal Facilities. Federally managed park, forest, or other area. |
| M9 |
Federal Facilities. Federal facility not classified elsewhere. |
| P1 |
Populated Place that is also an incorporated place with the same name and the same Census Code. |
| T1 |
Active Minor Civil Divisions. An active county subdivision that is not coextensive with an incorporated place. |
| T2 |
Active Minor Civil Divisions. An active county subdivision that is coextensive with a census designated place. |
| T5 |
Active Minor Civil Divisions. An active county subdivision that is coextensive with an incorporated place. |
| T9 |
Inactive Minor Civil Divisions. An inactive county subdivision. |
| U1 |
Populated (Community) Place (except those associated with facilities). A census designated place with an official federally recognized name. |
| U2 |
Populated (Community) Place (except those associated with facilities). A census designated place without an official federally recognized name. |
| U3 |
Populated (Community) Place (except those associated with facilities). Alternate official common name for an incorporated or census designated place. |
| U4 |
Populated (Community) Place (except those associated with facilities). Official common name for a populated location within an incorporated place. |
| U5 |
Populated Place that is also a census designated place with the same
name. |
| U6 |
Populated (Community) Place (except those associated with facilities). A populated place that is not a census designated or incorporated place having an official federally recognized name. |
| X0 |
Obsolete or Incorrect Name: Deleted feature that was a non-governmental entity. |
| X1 |
Obsolete or Incorrect Name: Deleted feature that was a governmental entity. |
| Z1 |
Inactive or Nonfunctioning Primary County Divisions. A nonfunctioning county subdivision. |
| Z3 |
Inactive or Nonfunctioning Primary County Divisions. A county subdivision defined as an unorganized territory. |
| Z4 |
Inactive or Nonfunctioning Primary County Divisions. A nonfunctioning or disorganized historical county subdivision no longer recognized by the Census Bureau. |
| Z5 |
Inactive or Nonfunctioning Primary County Divisions. A statistical county subdivision. |
| Z6 |
Inactive or Nonfunctioning Primary County Divisions. A sub-minor civil division. |
| Z8 |
Inactive or Nonfunctioning Primary County Divisions. A county subdivision that is legally coextensive with all or part of an incorporated place that the Census Bureau does not recognize. |