Ottawa County Flag

Ottawa County

State:
Michigan
County Seat:
Grand Haven

Ottawa County's estimated 2026 population is 311,555 with a growth rate of 0.86% in the past year according to the most recent United States census data. Ottawa County is the 7th largest county in Michigan. The 2010 population was 264,114 and has seen a growth of 17.96% since that time.

311,555
Total Population
552
Population Density (mi²)
7
Population Rank (State)
2.7K 0.86%
Annual Population Growth

Ottawa County Population

Demographics

Economics and Income Statistics