Jefferson County Map
The County of Jefferson is located in the State of Ohio. Find directions to Jefferson County, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. According to the 2020 US Census the Jefferson County population is estimated at 64,939 people. The Jefferson County time zone is Eastern Daylight Time which is 5 hours behind Coordinated Universal Time (UTC).
Nearby counties include Belmont County, Carroll County, Columbiana County, Harrison County, Brooke County, Hancock County, Ohio County.
Top cities include Steubenville, Toronto, Wintersville, Mingo Junction, Tiltonsville