Castleton ZIP code, Illinois
The ZIP code for Castleton, IL is 61426, and its area code is 309.
- USPS city name
- 1 ZIP code
- Population
- 41
- Area code
- 309
- County
- Stark County
- State
- Illinois
ZIP codes addressed as Castleton
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
61426 | Castleton , IL | Standard | 41 | — | — |
Map of Castleton ZIP codes
The ZIP codes of Castleton, 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 Castleton
The nearest larger towns are Bradford (772 people, 4.7 mi), Wyoming (1,578 people, 5.2 mi) and Toulon (1,485 people, 8.4 mi).
| Town | Population | Distance |
|---|---|---|
| Kewanee | 11,913 | 14.1 mi |
| Chillicothe | 5,900 | 17.6 mi |
| Princeton | 7,975 | 22.0 mi |
| Peoria | 112,169 | 25.8 mi |
| Peoria Heights | 5,825 | 26.7 mi |
| Germantown Hills | 3,436 | 27.3 mi |
| Metamora | 4,159 | 28.5 mi |
| West Peoria | 4,238 | 29.4 mi |
More nearby: every ZIP code in Stark County · Illinois ZIP codes
Cite this page
zipcodes.pro. “Castleton, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/castleton
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