U.S. Census Bureau

1990s boundary changes

About Geographic Change Notes

Please Select a State

Alabama Alaska * Arizona Arkansas California
Colorado Connecticut Delaware Florida Georgia
Hawaii Idaho Illinois Indiana Iowa
Kansas Kentucky Louisiana Maine Maryland *
Massachusetts Michigan Minnesota Mississippi Missouri
Montana * Nebraska Nevada New Hampshire New Jersey
New Mexico New York North Carolina North Dakota Ohio
Oklahoma Oregon Pennsylvania Rhode Island South Carolina
South Dakota Tennessee Texas Utah Vermont
Virginia * Washington West Virginia Wisconsin Wyoming

* States that have had changes in their county boundaries since 1990.