| Gerlaw, Illinois | |
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| — Unincorporated community — | |
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Gerlaw, Illinois
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| Coordinates: | |
| Country | United States |
| State | Illinois |
| County | Warren |
| Elevation | 735 ft (224 m) |
| Time zone | Central (CST) (UTC-6) |
| • Summer (DST) | CDT (UTC-5) |
| ZIP code | 61435[1] |
| Area code(s) | 309 |
| GNIS feature ID | 408963[2] |
Gerlaw is an unincorporated community in Warren County, Illinois, United States. Gerlaw is 6 miles (9.7 km) north-northeast of Monmouth. Gerlaw had a post office, which closed on August 28, 2010.[3]
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