| Number | Census Class & Code | Description |
|---|---|---|
| 303 | Incorporated Places - C1 | An active incorporated place that does not serve as a county subdivision equivalent. |
| 1 | Incorporated Places - C5 | An active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. |
| 1 | Incorporated Places - C9 | An inactive or nonfunctioning incorporated place. |
| 1 | American Indian Areas - D1 | Legal federally recognized American Indian area consisting of reservation and associated off-reservation trust land. |
| 3 | American Indian Areas - D2 | Legal federally recognized American Indian area consisting of reservation only. |
| 60 | Counties and County Equivalents - H1 | An active county or equivalent feature. |
| 4 | 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. |
| 575 | Inactive or Nonfunctioning Primary County Divisions - Z1 | A nonfunctioning county subdivision. |
| 489 | Land Grants & Other - N/A | Land Grants and Other Unclassified Civil Features |