
Rapid City
- County:
- Kalkaska County
- County Seat:
- No
- Area (mi²):
- 5.408
- State:
- Michigan
Rapid City is a CDP located in Kalkaska County, Michigan. Rapid City has a 2025 population of 1,157. Rapid City is currently declining at a rate of -1.11% annually and its population has decreased by -22.61% since the most recent census, which recorded a population of 1,495 in 2020.
The average household income in Rapid City is $68,529 with a poverty rate of 13.76%. The median age in Rapid City is 51.6 years: 52.5 years for males, and 51.6 years for females.