Rock Falls, Illinois
Rock Falls | |
|---|---|
View of downtown buildings in Rock Falls, IL | |
Location of Rock Falls in Whiteside County, Illinois. | |
| Coordinates: 41°46′21″N 89°41′34″W / 41.77250°N 89.69278°W | |
| Country | United States |
| State | Illinois |
| County | Whiteside |
| Founded by | A.P. Smith |
| Government | |
| • Type | Mayor-council |
| • Mayor | Rodney Kleckler |
| Area | |
• Total | 4.12 sq mi (10.68 km2) |
| • Land | 3.98 sq mi (10.32 km2) |
| • Water | 0.14 sq mi (0.36 km2) |
| Elevation | 646 ft (197 m) |
| Population (2020) | |
• Total | 8,789 |
| • Density | 2,206.7/sq mi (852.02/km2) |
| Time zone | UTC−6 (CST) |
| • Summer (DST) | UTC−5 (CDT) |
| ZIP code | 61071 |
| Area code | 815 |
| FIPS code | 17-64928 |
| GNIS feature ID | 2396397 |
| Website | rockfalls61071 |
Rock Falls is a city in Whiteside County, Illinois, United States. The recorded population was 8,606 at the 2020 census, down 7.12% from 9,266 in 2010. The city is located on the Rock River, directly opposite its twin city of Sterling.