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 2026 population of 143. Rock Falls is currently declining at a rate of -1.38% annually and its population has decreased by -4.03% since the most recent census, which recorded a population of 149 in 2020.
The median household income in Rock Falls is $71,042 with a poverty rate of 5.88%. The median age in Rock Falls is 44.5 years: 52 years for males, and 39.4 years for females. For every 100 females there are 88.9 males.