City in Illinois
Colchester, IL
- Population
- 1,082 (2024)
- Density
- 941 / sq mi
- Land area
- 1.2 sq mi
- Coordinates
- 40.4256, -90.7922
Resident reviews
Be the first to review →No reviews yet. Live in Colchester, or used to? Tell people what it is really like.
ZIP codes
Select a ZIP code for neighborhood-level income, rent and home values.