
Rock Falls
- County:
- Cerro Gordo County
- County Seat:
- No
- Area (mi²):
- 0.207
- State:
- Iowa
Rock Falls is a city located in Cerro Gordo County, Iowa. Rock Falls has a 2025 population of 142. Rock Falls is currently declining at a rate of -0.7% annually and its population has decreased by -4.7% since the most recent census, which recorded a population of 149 in 2020.
The average household income in Rock Falls is $70,694 with a poverty rate of 11.2%. The median age in Rock Falls is 39.3 years: 42.5 years for males, and 34.3 years for females.