| Castleton, Illinois | |
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| — Unincorporated community — | |
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Castleton, Illinois
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| Coordinates: | |
| Country | United States |
| State | Illinois |
| County | Stark |
| Elevation | 787 ft (240 m) |
| Time zone | Central (CST) (UTC-6) |
| • Summer (DST) | CDT (UTC-5) |
| ZIP code | 61426 |
| Area code(s) | 309 |
| GNIS feature ID | 405694[1] |
Castleton is an unincorporated community in Stark County, Illinois, United States. Castleton is 5 miles (8.0 km) northeast of Wyoming. Castleton has a post office with ZIP code 61426.[2]
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