Thayer is located in Sangamon County. About 632 people live here (as of 2020). Between 2010 and 2020, the population declined from 693 to 632. The region is at 197 meters above sea level. There are about 38 streets in Thayer. The postal codes are 62689. The dialing code is 217. Thayer is human settlement in Illinois, United States of America. Among other things, Thayer has restaurants.
| Area | 0.6 |
| Elevation | 197 m |
| Located in | Sangamon County |
| Postal code | 62689 |
| Country | United States |
| Population | 632 |
| Official name | Thayer |
| 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 Thayer Legend 
Bicycle map Thayer Legend 
Pedestrian map Thayer Legend