Lerna is located in Coles County. About 226 people live here (as of 2020). Between 2010 and 2020, the population declined from 286 to 226. There are about 21 streets in Lerna. The postal codes are 62440. Lerna is human settlement in Coles County, Illinois, United States of America.
| Area | 0.1 |
| Elevation | 741 |
| Located in | Coles County |
| Postal code | 62440 |
| Country | United States |
| Population | 226 |
| Official name | Lerna |
| 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 |
Public transit map Lerna Legend 
Bicycle map Lerna Legend 
Pedestrian map Lerna Legend