| Number | Census Class & Code | Description |
|---|---|---|
| 550 | 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. |
| 2 | Incorporated Places - C9 | An inactive or nonfunctioning incorporated place. |
| 1 | American Indian Areas - D2 | Legal federally recognized American Indian area consisting of reservation only. |
| 1 | American Indian Areas - D3 | Legal federally recognized American Indian area consisting of off-reservation trust land only. |
| 7 | American Indian Areas - D7 | A tribal subdivision. |
| 100 | Counties and County Equivalents - H1 | An active county or equivalent feature. |
| 15 | Obsolete or Incorrect Name - X1 | Deleted feature that was a governmental entity. |
| 1,032 | Inactive or Nonfunctioning Primary County Divisions - Z1 | A nonfunctioning county subdivision. |
| 4 | Inactive or Nonfunctioning Primary County Divisions - Z3 | A county subdivision defined as an unorganized territory. |
| 32 | Land Grants & Other - N/A | Land Grants and Other Unclassified Civil Features |