Columbiana County, Ohio

Columbiana County
Location within the U.S. state of Ohio
Ohio's location within the U.S.
Coordinates: 40°46′N 80°47′W / 40.77°N 80.78°W / 40.77; -80.78
Country United States
State Ohio
FoundedMay 1, 1803
Named afterChristopher Columbus
SeatLisbon
Largest citySalem
Area
  Total
535 sq mi (1,390 km2)
  Land532 sq mi (1,380 km2)
  Water2.8 sq mi (7 km2)  0.5%
Population
 (2020)
  Total
101,877
  Density190/sq mi (70/km2)
Time zoneUTC−5 (Eastern)
  Summer (DST)UTC−4 (EDT)
Congressional district6th
Websitewww.columbianacounty.org

Columbiana County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 101,877. The county seat is Lisbon and its largest city is Salem. Created in 1803, the county name is derived from that of 15th-century Italian explorer Christopher Columbus.

Columbiana County is predominantly rural and considered part of Appalachian Ohio. While northern communities are more associated with Northeast Ohio, southern communities along the Ohio River are culturally closer to the Upper Ohio Valley region. Columbiana County comprises the Salem, Ohio micropolitan statistical area, which is also included in the larger Youngstown–Warren–Salem combined statistical area. Officially considered part of the Youngstown media market, stations from Steubenville regularly report in the area as well.