Smithfield is located in Jefferson County. About 869 people live here (as of 2010). The region is at 380 meters above sea level. The area covers about 2.4 square kilometers. There are about 41 streets in Smithfield. The region was founded in 1803. The postal codes are 43948. Smithfield is unincorporated community and former village in Smithfield Township, Jefferson County, Ohio, United States. Among other things, Smithfield has schools.
| Year built | 1803 |
| Dissolved | 2019 |
| Area | 2.4 km² |
| Elevation | 380 m |
| Located in | Smithfield Township, Jefferson County |
| Postal code | 43948 |
| Country | United States |
| Population | 869 |
| Official name | Smithfield |
| Bike path |
| Bike lane on roadway |
| Cycling allowed on bus lane |
| Bicycle street |
| Open to cyclists |
| Open to cyclists, good path |
| Cycling prohibited |
| Cobblestone |
| Long-distance bike route | (depending on scale) |
| Long-distance bike route |
| Long-distance hiking trail | (depending on scale) |
| Long-distance hiking trail |
| Pedestrians prohibited |