|Census Class & Code
|Incorporated Places - C5
|An active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent.
|American Indian Areas - D1
|Legal federally recognized American Indian area consisting of reservation and associated off-reservation trust land.
|American Indian Areas - D2
|Legal federally recognized American Indian area consisting of reservation only.
|American Indian Areas - D7
|A tribal subdivision.
|Counties and County Equivalents - H1
|An active county or equivalent feature.
|Active Minor Civil Divisions - T1
|An active county subdivision that is not coextensive with an incorporated place.
|Obsolete or Incorrect Name - X1
|Deleted feature that was a governmental entity.
|Inactive or Nonfunctioning Primary County Divisions - Z1
|A nonfunctioning county subdivision.
|Inactive or Nonfunctioning Primary County Divisions - Z3
|A county subdivision defined as an unorganized territory.
|Land Grants & Other - N/A
|Land Grants and Other Unclassified Civil Features