Jefferson County, county in Mississippi, United States. As of 2020 county had an estimated population of 6,997 inhabitants. The county was created 223 years ago in 1799. Its county seat is "Fayette".
There are 1 city/town in Jefferson County, MS. The largest city of Jefferson County is Fayette with a population of 1,432.
Cities, Towns, Neighborhoods & Other Populated Places in Jefferson County.
|Fayette||City in and county seat of Jefferson County, Mississippi||Jefferson||1,432|