List of US States By Geographic Regions
| Region | Sub-Region | State | State Code |
|---|---|---|---|
| Midwest | East North Central | Illinois | IL |
| Midwest | East North Central | Indiana | IN |
| Midwest | East North Central | Michigan | MI |
| Midwest | East North Central | Ohio | OH |
| Midwest | East North Central | Wisconsin | WI |
| Midwest | West North Central | Iowa | IA |
| Midwest | West North Central | Kansas | KS |
| Midwest | West North Central | Minnesota | MN |
| Midwest | West North Central | Missouri | MO |
| Midwest | West North Central | Nebraska | NE |
| Midwest | West North Central | North Dakota | ND |
| Midwest | West North Central | South Dakota | SD |
| Northeast | Middle Atlantic | New Jersey | NJ |
| Northeast | Middle Atlantic | New York | NY |
| Northeast | Middle Atlantic | Pennsylvania | PA |
| Northeast | New England | Connecticut | CT |
| Northeast | New England | Maine | ME |
| Northeast | New England | Massachusetts | MA |
| Northeast | New England | New Hampshire | NH |
| Northeast | New England | Rhode Island | RI |
| Northeast | New England | Vermont | VT |
| South | East South Central | Alabama | AL |
| South | East South Central | Kentucky | KY |
| South | East South Central | Mississippi | MS |
| South | East South Central | Tennessee | TN |
| South | South Atlantic | Delaware | DE |
| South | South Atlantic | Florida | FL |
| South | South Atlantic | Georgia | GA |
| South | South Atlantic | Maryland | MD |
| South | South Atlantic | North Carolina | NC |
| South | South Atlantic | South Carolina | SC |
| South | South Atlantic | Virginia | VA |
| South | South Atlantic | West Virginia | WV |
| South | West South Central | Arkansas | AR |
| South | West South Central | Louisiana | LA |
| South | West South Central | Oklahoma | OK |
| South | West South Central | Texas | TX |
| West | Mountain | Arizona | AZ |
| West | Mountain | Colorado | CO |
| West | Mountain | Idaho | ID |
| West | Mountain | Montana | MT |
| West | Mountain | Nevada | NV |
| West | Mountain | New Mexico | NM |
| West | Mountain | Utah | UT |
| West | Mountain | Wyoming | WY |
| West | Pacific | Alaska | AK |
| West | Pacific | California | CA |
| West | Pacific | Hawaii | HI |
| West | Pacific | Oregon | OR |
| West | Pacific | Washington | WA |