Wilmington, Ohio

Wilmington, Ohio
Wilmington Commercial Historic District
Motto(s): 
"A Worthy Heritage, A Winning Future"
Location of Wilmington in Clinton County
Wilmington
Wilmington
Coordinates: 39°26′10″N 83°48′50″W / 39.43611°N 83.81389°W / 39.43611; -83.81389
CountryUnited States
StateOhio
CountyClinton
Established1810
Government
  MayorPat Haley (R)
Area
  Total
13.09 sq mi (33.91 km2)
  Land12.94 sq mi (33.52 km2)
  Water0.15 sq mi (0.39 km2)
Elevation
1,014 ft (309 m)
Population
 (2020)
  Total
12,664
  Density978.52/sq mi (377.80/km2)
Time zoneUTC-5 (Eastern (EST))
  Summer (DST)UTC-4 (EDT)
ZIP code
45177
Area code(s)937, 326
FIPS code39-85792
GNIS feature ID2397327
Websitewilmingtonoh.org

Wilmington is a city in Clinton County, Ohio, United States, and its county seat. The population was 12,664 at the 2020 census. It is the principal city of the Wilmington micropolitan area, which includes all of Clinton County and is part of the greater Cincinnati–Wilmington–Maysville combined statistical area.

Home to Wilmington College, founded in 1870 by the Society of Friends, the city and the surrounding area include more than one dozen Quaker meeting houses. The city features a weather forecast office of the National Weather Service, which serves all of Southwestern Ohio and portions of Kentucky and Indiana.