Jefferson County is the name of 25 counties and one parish in the United States:
- Jefferson County, Alabama
- Jefferson County, Arkansas
- Jefferson County, Colorado
- 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, Washington
- Jefferson County, West Virginia
- Jefferson County, Wisconsin
Famous quotes containing the words jefferson and/or county:
“I would rather be exposed to the inconveniences attending too much liberty than those attending too small a degree of it.”
—Thomas Jefferson (1743–1826)
“I believe the citizens of Marion County and the United States want to have judges who have feelings and who are human beings.”
—Paula Lopossa, U.S. judge. As quoted in the New York Times, p. B9 (May 21, 1993)