Tennessee County Map with Interstate You Belong Here Anderson CountyBlount CountyGrainger CountyJefferson CountyKnox CountyLoudon CountyRoane CountySevier CountyUnion County Jefferson County Total population 54,683 Children < 18 20% Rural population 59.5% More information about Jefferson County Jefferson County CountyLearn about Jefferson CountyLearn about Jefferson UT County Extension NeighborhoodsLearn about neighborhoods in Jefferson County Leisure ActivitiesJefferson County Recreation and Arts SchoolsJefferson County school system Area Information * WeatherRealtorsCost of LivingImmigration and Citizenship Area Rentals * ZillowFor RentHomes for Rent *Listing links does not imply endorsement Visit Knoxville Guide Visit UT Knoxville Tennessee County Profiles UT Off Campus Housing