| Number | Census Class & Code | Description |
|---|---|---|
| 411 | Incorporated Places - C1 | An active incorporated place that does not serve as a county subdivision equivalent. |
| 7 | American Indian Areas - D2 | Legal federally recognized American Indian area consisting of reservation only. |
| 2 | American Indian Areas - D3 | Legal federally recognized American Indian area consisting of off-reservation trust land only. |
| 66 | Counties and County Equivalents - H1 | An active county or equivalent feature. |
| 1 | Counties and County Equivalents - H6 | 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. |
| 4 | Obsolete or Incorrect Name - X1 | Deleted feature that was a governmental entity. |
| 317 | Inactive or Nonfunctioning Primary County Divisions - Z5 | A statistical county subdivision. |
| 297 | Land Grants & Other - N/A | Land Grants and Other Unclassified Civil Features |