
Kent County
- State:
- Michigan
- County Seat:
- Grand Rapids
Kent County's estimated 2025 population is 666,222 with a growth rate of 0.37% in the past year according to the most recent United States census data. Kent County is the 4th largest county in Michigan. The 2010 population was 602,994 and has seen a growth of 10.49% since that time.