
Rock Rapids
- County:
- Lyon County
- County Seat:
- Yes
- Area (mi²):
- 4.209
- State:
- Iowa
Rock Rapids is a city located in Lyon County, Iowa. Rock Rapids has a 2025 population of 2,770. It is also the county seat of .Rock Rapids is currently growing at a rate of 1.17% annually and its population has increased by 6.17% since the most recent census, which recorded a population of 2,609 in 2020.
The average household income in Rock Rapids is $77,994 with a poverty rate of 5.88%. The median age in Rock Rapids is 42.1 years: 38.3 years for males, and 45.8 years for females.