Colchester
City in McDonough County, Illinois

Colchester is a city in McDonough County, Illinois, with 1,108 residents (2020 Census). It sits at 689 ft (210 m) above sea level. The nearest town is Tennessee, 2.5 miles SW.
- 1,108residents (2020 Census)
- 689 ftelevation · 210 m
- 1.2 sq miland area · 3.0 km²
- 963 / sq mipopulation density
- 62326ZIP code
About Colchester
Colchester is a city in McDonough County, Illinois, United States. The population was 1,108 at the 2020 census, down from 1,401 in 2010. The city is named after the city of Colchester, England.
Text: Wikipedia · CC BY-SA 4.0
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Living in Colchester
- Median household income
- $63,981
- Median home value
- $91,700
- Median rent
- $808/mo
- Median age
- 41.6
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Map of Colchester
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Open in Google Maps ›Colchester, IL population
Colchester had 1,108 residents in the 2020 Census.
| 2020 Census | 1,108 |
|---|---|
| Density | 963 per sq mi (372 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Colchester at a glance
| State | Illinois (IL) |
|---|---|
| County | McDonough County |
| Type | City |
| Population | 1,108 (2020) |
| Land area | 1.15 sq mi (3.0 km²) |
| Elevation | 689 ft (210 m) |
| Coordinates | 40.4256° N, 90.7922° W |
| ZIP code | 62326 |
| Census code (GEOID) | 1715378 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Colchester
- Tennessee2.5 mi SW
- Macomb6.5 mi NE
- Blandinsville9.7 mi NW
- Sciota9.7 mi N
- Good Hope11.0 mi NE
- Plymouth11.3 mi SW
- Industry11.8 mi SE
- Bardolph13.0 mi NE
- La Harpe14.4 mi NW
- Adair15.5 mi E
- Augusta15.8 mi SW
- Littleton16.0 mi SE
Straight-line distance between town centers.
Frequently asked questions about Colchester
What county is Colchester in?
Colchester is in McDonough County, Illinois.
What is the population of Colchester, IL?
1,108 people lived in Colchester at the 2020 Census.
What is the ZIP code of Colchester, IL?
The ZIP code of Colchester is 62326.
What is the elevation of Colchester?
689 feet (210 m) above sea level.
What towns are near Colchester?
Tennessee (2.5 mi), Macomb (6.5 mi), Blandinsville (9.7 mi), Sciota (9.7 mi), Good Hope (11.0 mi).
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