Jefferson County

Jefferson County may refer to one of several counties or parishes in the United States, all of which are named directly or indirectly after Thomas Jefferson:


 * Jefferson County, Alabama
 * Jefferson County, Arkansas
 * Jefferson County, Colorado
 * Jefferson County, Jefferson Territory
 * Jefferson County, Florida
 * Jefferson County, Georgia
 * Jefferson County, Idaho
 * Jefferson County, Illinois
 * Jefferson County, Indiana
 * Jefferson County, Iowa
 * Jefferson County, Kansas
 * Jefferson County, Kentucky
 * Jefferson Parish, Louisiana
 * Jefferson County, Mississippi
 * Jefferson County, Missouri
 * Jefferson County, Montana
 * Jefferson County, Nebraska
 * Jefferson County, New York
 * Jefferson County, Ohio
 * Jefferson County, Oklahoma
 * Jefferson County, Oregon
 * Jefferson County, Pennsylvania
 * Jefferson County, Tennessee
 * Jefferson County, Texas
 * Jefferson County, Virginia, has existed twice; the two counties continue in existence as Jefferson County, Kentucky and Jefferson County, West Virginia
 * Jefferson County, Washington
 * Jefferson County, West Virginia
 * Jefferson County, Wisconsin