Jefferson County, Ohio
Jefferson County is a county in Ohio with an estimated population of 64,026 in 2023. 15 cities, towns and Census places in it are indexed here.
Largest places in Jefferson County
Steubenville 18,064Toronto 5,190Wintersville 3,676Mingo Junction 3,257Tiltonsville 1,225Yorkville 942Adena 646Dillonvale 599Bergholz 529Amsterdam 426Richmond 401Rayland 383Mount Pleasant 382Irondale 316Stratton 260
About Jefferson County
Jefferson County is one of the counties of Ohio. County governments in Ohio handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.