ZIP Code 62326
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.
From Wikipedia — text licensed CC BY-SA 4.0.
Area Profile
US Census (ACS 5-year · Gazetteer)
2,317
population
$65,048
median household income
30
people / sq mi
$116,400
median home value
$654
median gross rent
39.2
median age
1,072
housing units
965
households
77.3
land area (sq mi)