Northeast U.S.

New York, New Jersey, Connecticut
(NY-NJ-CT)
The traditional tri-state area around New York City.

Pennsylvania, New Jersey, Delaware
(PA-NJ-DE)
Surrounding the Philadelphia metropolitan area.

Massachusetts, New Hampshire, Vermont
(MA-NH-VT)
Often grouped as the New England tri-state area.
Maine, New Hampshire, Massachusetts
(ME-NH-MA)
Another common group in New England.

Midwest U.S.

Illinois, Indiana, Wisconsin
(IL-IN-WI)
Centered around the Chicago area.

Kentucky, Indiana, Ohio
(KY-IN-OH)
Centered around the Cincinnati metro area.

Michigan, Ohio, Indiana
(MI-OH-IN)
Grouped in the Great Lakes region.

Minnesota, Iowa, Wisconsin
(MN-IA-WI)
A common grouping in the northern Midwest.

Mid-Atlantic U.S.

Virginia, Maryland, Washington, D.C.
(VA-MD-DC)
The DMV region around Washington, D.C.

West Virginia, Pennsylvania, Maryland
(WV-PA-MD)
Grouped in the Appalachian region.

Southeast U.S.

Georgia, South Carolina, North Carolina
(GA-SC-NC)
The southeastern tri-state area.

Tennessee, Alabama, Georgia
(TN-AL-GA)
Near the Chattanooga metro area.

Florida, Georgia, Alabama
(FL-GA-AL)
Bordering the southeastern states.

South U.S.

Tennessee, Arkansas, Mississippi
(TN-AR-MS)
Centered around Memphis.

Louisiana, Mississippi, Alabama
(LA-MS-AL)
Often grouped along the Gulf Coast.

Texas, Louisiana, Arkansas
(TX-LA-AR)
Neighboring southern states.

Kentucky, Tennessee, Virginia
(KY-TN-VA)
Grouped around Appalachia.

Southwest U.S.

New Mexico, Arizona, Texas
(NM-AZ-TX)
Southwestern states.

Oklahoma, Texas, Arkansas
(OK-TX-AR)
Bordering southern-central states.

Nevada, Arizona, California
(NV-AZ-CA)
Southwestern region.

Western U.S.

California, Oregon, Nevada
(CA-OR-NV)
On the West Coast and southwestern U.S.

Washington, Oregon, Idaho
(WA-OR-ID)
Pacific Northwest region.

Montana, Wyoming, Idaho
(MT-WY-ID)
Mountain West tri-state area.

Colorado, Wyoming, Nebraska
(CO-WY-NE)
Neighboring Rocky Mountain states.

Central U.S.

Missouri, Kansas, Nebraska
(MO-KS-NE)
Centered around Kansas City.

Nebraska, South Dakota, Iowa
(NE-SD-IA)
Great Plains region.

North Dakota, South Dakota, Minnesota
(ND-SD-MN)
Upper Midwest.

Colorado, Utah, Arizona
(CO-UT-AZ)
Mountain Southwest region.

Mountain West U.S.

Utah, Wyoming, Idaho
(UT-WY-ID)
Mountain West group.

Montana, South Dakota, Wyoming
(MT-SD-WY)
Northwestern tri-state area.

Nevada, Utah, Arizona
(NV-UT-AZ)
Western U.S. states.

Non-Contiguous States

Alaska (AK)
Separate due to its location in the far north.

Hawaii (HI)
An island state in the Pacific.