Colchester ZIP code, Illinois
The ZIP code for Colchester, IL is 62326, and its area code is 309.
- USPS city name
- 1 ZIP code
- Population
- 1,128
- Area code
- 309
- County
- McDonough County
- State
- Illinois
Colchester in numbers
About 1,128 people live in Colchester, in 532 households. The median household income is $63,981 a year, 23% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $91,700 (65% below the Illinois median), and median gross rent is $808 a month. The median age is 41.6; 14.0% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 16 minutes.
| Population | 1,128 |
|---|---|
| Households | 532 |
| Median age | 41.6 |
| Median household income | $63,981 |
| Median home value | $91,700 |
| Median gross rent | $808 |
| Bachelor's degree or higher | 14.0% |
| Mean commute | 15.7 min |
| Population density | 981 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Colchester city. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes addressed as Colchester
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
62326 | Colchester , IL | Standard | 2,236 | $65,000 | $119,000 |
Map of Colchester ZIP codes
The ZIP codes of Colchester, IL, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Colchester
The nearest larger towns are Macomb (14,894 people, 6.5 mi), La Harpe (1,273 people, 14 mi) and Bushnell (2,677 people, 17 mi).
| Town | Population | Distance |
|---|---|---|
| Macomb | 14,894 | 6.5 mi |
| Bushnell | 2,677 | 17.4 mi |
| Rushville | 2,747 | 24.2 mi |
More nearby: every ZIP code in McDonough County · Illinois ZIP codes
Cite this page
zipcodes.pro. “Colchester, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/colchester
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