
Rapids City
- County:
- Rock Island County
- County Seat:
- No
- Area (mi²):
- 1.626
- State:
- Illinois
Rapids City is a village located in Rock Island County, Illinois. Rapids City has a 2025 population of 924. Rapids City is currently declining at a rate of -0.75% annually and its population has decreased by -3.55% since the most recent census, which recorded a population of 958 in 2020.
The average household income in Rapids City is $105,875 with a poverty rate of 3.46%. The median age in Rapids City is 46.3 years: 45.5 years for males, and 49.1 years for females.