United States Administrative Divisions
What is the hierarchy of administrative divisions in United States?
Here’s a breakdown of the hierarchy:
1. States and Federal District: The United States is divided into 50 states, a federal district (Washington, D.C.), and several territories.
2. Counties and County Equivalents: States are subdivided into counties or county equivalents, such as parishes in Louisiana and boroughs in Alaska.
3. Municipalities and Townships: Counties are further divided into municipalities (cities, towns, villages) and, in many states, townships or similar minor civil divisions.
List of United States's administrative divisions with their counts and names
These are the summarized administrative divisions. The full dataset is available in the Download Center.
| iso | country | admin level 1 | admin level 2 | admin level 3 | admin level 4 |
|---|---|---|---|---|---|
| US | United States | Alabama (State) | 67 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Alaska (State) | 11 Census areas, 19 Boroughs | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Arizona (State) | 15 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Arkansas (State) | 75 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | California (State) | 58 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Colorado (State) | 64 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Connecticut (State) | 9 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Delaware (State) | 3 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Florida (State) | 67 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Georgia (State) | 159 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Hawaii (State) | 5 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Idaho (State) | 44 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Illinois (State) | 102 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Indiana (State) | 92 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Iowa (State) | 99 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Kansas (State) | 105 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Kentucky (State) | 120 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Louisiana (State) | 64 Parishes | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Maine (State) | 16 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Maryland (State) | 24 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Massachusetts (State) | 14 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Michigan (State) | 83 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Minnesota (State) | 87 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Mississippi (State) | 82 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Missouri (State) | 115 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Montana (State) | 56 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Nebraska (State) | 93 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Nevada (State) | 17 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | New Hampshire (State) | 10 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | New Jersey (State) | 21 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | New Mexico (State) | 33 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | New York (State) | 62 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | North Carolina (State) | 100 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | North Dakota (State) | 53 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Ohio (State) | 88 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Oklahoma (State) | 77 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Oregon (State) | 36 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Pennsylvania (State) | 67 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Rhode Island (State) | 5 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | South Carolina (State) | 46 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | South Dakota (State) | 66 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Tennessee (State) | 95 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Texas (State) | 254 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | U.S. Armed Forces - Americas (US Armed Force) | This level doesn’t exist for this country. | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | U.S. Armed Forces - Europe (US Armed Force) | This level doesn’t exist for this country. | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | U.S. Armed Forces - Pacific (US Armed Force) | This level doesn’t exist for this country. | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Utah (State) | 29 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Vermont (State) | 14 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Virginia (State) | 133 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Washington, D.C. (Federal District) | This level doesn’t exist for this country. | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Washington (State) | 39 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | West Virginia (State) | 55 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Wisconsin (State) | 72 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
| US | United States | Wyoming (State) | 23 Counties | This level doesn’t exist for this country. | This level doesn’t exist for this country. |
Why is building an Administrative Divisions Database complex?
The complexity arises from inconsistent global standards, frequent boundary changes, non-uniform naming conventions (e.g., “suburb” in Australia vs. “county” in the US), and variations in administrative levels across countries. Integrating and harmonizing data from multiple sources requires advanced normalization, versioning, and geospatial validation techniques.
How does GeoPostcodes solve the problem for you?
Our standardized database overcomes the complexity of different administrative division
systems worldwide. Our database follows a unified structure that you can integrate
seamlessly into your system or platform of choice without needing to become an expert in
each country’s unique administrative hierarchy.
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