Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Florida
Georgia
- Georgia Association of Regional Commissions
- Georgia Association of Metropolitan Planning Organizations
Idaho
Illinois
- Illinois Association of Regional Councils
- Illinois Metropolitan Planning Organization Advisory Council
Indiana
Iowa
Kansas
- Kansas Association of Regional Development Organizations
Kentucky
Louisiana
Maine
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
New Hampshire
New Mexico
- New Mexico Association of Regional Councils
New York
- New York State Association of Regional Councils
- New York State Association of Metropolitan Planning Organizations
North Carolina
- North Carolina Association of Regional Councils
- North Carolina Association of Metropolitan Planning Organizations
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
South Carolina
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Note: Delaware, Maryland, Hawaii, Nevada, New Jersey, Rhode Island, South Dakota, and Wyoming have no known state association.