| Frederick, Illinois | |
|---|---|
| Unincorporated community | |
| Coordinates: 40°04′12″N 90°25′44″W / 40.07000°N 90.42889°WCoordinates: 40°04′12″N 90°25′44″W / 40.07000°N 90.42889°W | |
| Country | United States |
| State | Illinois |
| County | Schuyler |
| Elevation | 449 ft (137 m) |
| Time zone | Central (CST) (UTC-6) |
| • Summer (DST) | CDT (UTC-5) |
| ZIP code | 62639 |
| Area code(s) | 217 |
| GNIS feature ID | 408710 |
Frederick is an unincorporated community in Schuyler County, Illinois, United States. Frederick is near the Illinois River, 4 miles (6.4 km) north of Beardstown. Frederick has a post office with ZIP code 62639.