Keithsburg is located in Mercer County. The region is located on the body of water Mississippi River. About 550 people live here (as of 2020). Between 2010 and 2020, the population declined from 609 to 550. The region is at 166 meters above sea level. The area covers about 8.2 square kilometers. There are about 74 streets in Keithsburg. The postal codes are 61442. The dialing code is 309. Keithsburg is city in Mercer County, Illinois, United States.
| Area | 8.2 km² |
| Elevation | 166 m |
| Located in | Mercer County |
| Postal code | 61442 |
| Country | United States |
| Body of water | Mississippi River |
| Population | 550 |
| Official name | Keithsburg |
| 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 |