Union is located in McHenry County. About 551 people live here (as of 2020). Between 2010 and 2020, the population declined from 580 to 551. The region is at 256 meters above sea level. There are about 39 streets in Union. The postal codes are 60180. Union is village in McHenry County, Illinois, United States. Among other things, Union has restaurants and museums.
| Area | 0.8 |
| Elevation | 256 m |
| Located in | McHenry County |
| Postal code | 60180 |
| Country | United States |
| Population | 551 |
| Official name | Union |
| 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 Union Legend 
Bicycle map Union Legend 
Pedestrian map Union Legend