
Windsor
- County:
- Shelby County
- County Seat:
- No
- Area (mi²):
- 0.438
- State:
- Illinois
Windsor is a village located in Shelby County, Illinois. Windsor has a 2025 population of 656. Windsor is currently declining at a rate of -0.3% annually and its population has decreased by -1.35% since the most recent census, which recorded a population of 665 in 2020.
The average household income in Windsor is $77,606 with a poverty rate of 8.53%. The median age in Windsor is 48.2 years: 45.2 years for males, and 50.5 years for females.