County Subdivision (COUSUB)
Overview
County Subdivision (COUSUB) is a geographic area defined by the U.S. Census Bureau that represents minor civil divisions within a county, such as towns, townships, or precincts. The type and nature of county subdivisions vary significantly by state based on local government structures.
Key Concepts
Minor Civil Division (MCD) is the primary governmental or administrative division of a county in many states. Census County Division (CCD) is a Census-created subdivision for states without MCDs. Unorganized territory is an area with no active county subdivision government. GEOID combines state (2) + county (3) + COUSUB (5) codes.
Types by State
| State Type | Subdivision Name | Examples |
|---|---|---|
| New England | Town | Connecticut, Massachusetts |
| Midwest | Township | Michigan, Ohio, Pennsylvania |
| South | Precinct/District | Louisiana parishes |
| West | CCD (Census-created) | Most western states |
Appendix
Created: 2025-12-13 | Modified: 2025-12-13
See Also
- Topologically Integrated Geographic Encoding and Referencing (TIGER)
- Federal Information Processing Standards (FIPS)
- Block Group (BG)