Major Regions of the United States:

Alaska & the Pacific Northwest
Alaska
Idaho
Oregon
Washington

Mid-Atlantic Region
Delaware
District of Columbia
Maryland
New Jersey
Pennsylvania
Virginia
West Virginia

Midwestern Region
Illinois
Indiana
Iowa
Kansas
Michigan
Minnesota
Missouri
Nebraska
Ohio
Wisconsin

​North Atlantic Region
Connecticut
Maine
Massachusetts
New Hampshire
New York
Rhode Island
Vermont

Rocky Mountain Region
Colorado
Montana
North Dakota
South Dakota
Utah
Wyoming

Southeastern Region
Alabama
Florida
Georgia
Kentucky
Mississippi
North Carolina
Puerto Rico
South Carolina
Tennessee
U.S. Virgin Islands

Southwestern Region
Arkansas
Louisiana
New Mexico
Oklahoma
Texas

Western Region
American Samoa
Arizona
California
Guam
Hawai'i
Nevada
Northern Mariana Islands