Gilson ZIP code, Illinois
The ZIP code for Gilson, IL is 61436, and its area code is 309.
- USPS city name
- 1 ZIP code
- Population
- 120
- Area code
- 309
- County
- Knox County
- State
- Illinois
ZIP codes addressed as Gilson
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
61436 | Gilson , IL | Standard | 745 | $76,000 | $205,000 |
Map of Gilson ZIP codes
The ZIP codes of Gilson, 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 Gilson
The nearest larger towns are Maquon (161 people, 4.8 mi), Knoxville (3,211 people, 5.5 mi) and Oak Run (800 people, 7.6 mi).
| Town | Population | Distance |
|---|---|---|
| Knoxville | 3,211 | 5.5 mi |
| Galesburg | 29,481 | 11.1 mi |
| Abingdon | 3,443 | 11.3 mi |
| Canton | 13,144 | 22.3 mi |
| Monmouth | 8,581 | 23.5 mi |
| Bushnell | 2,677 | 26.8 mi |
| Kewanee | 11,913 | 29.7 mi |
More nearby: every ZIP code in Knox County · Illinois ZIP codes
Cite this page
zipcodes.pro. “Gilson, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/gilson
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