Adena, Ohio
| Adena, Ohio | |
|---|---|
| Ann E. Lewis Bernhard House | |
| Location of Adena in Jefferson County, Ohio | |
| Coordinates: 40°13′02″N 80°52′28″W / 40.21722°N 80.87444°W | |
| Country | United States | 
| State | Ohio | 
| Counties | Jefferson, Harrison | 
| Townships | Smithfield, Short Creek | 
| Area | |
|  • Total | 0.54 sq mi (1.39 km2) | 
| • Land | 0.54 sq mi (1.39 km2) | 
| • Water | 0.00 sq mi (0.00 km2) | 
| Elevation | 869 ft (265 m) | 
| Population  (2020) | |
|  • Total | 664 | 
|  • Estimate  (2023) | 646 | 
| • Density | 1,236.50/sq mi (477.29/km2) | 
| Time zone | UTC-5 (Eastern (EST)) | 
| • Summer (DST) | UTC-4 (EDT) | 
| ZIP code | 43901 | 
| Area code | 740 | 
| FIPS code | 39-00464 | 
| GNIS feature ID | 2397916 | 
Adena (/əˈdiːnə/ ə-DEEN-ə) is a village in Jefferson and Harrison counties in the U.S. state of Ohio. The population was 664 at the 2020 census. It is part of the Weirton–Steubenville metropolitan area.