How many people live in Ottawa County, MI?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 306,200 people living in Ottawa County, MI. That makes Ottawa County the seventh-most populous county in Michigan. It is home to 3% of people living in the state.
306K
population of Ottawa County, MI (2024)
3%
County share of the Michigan population (2024)
About 306,200 people lived in Ottawa County, MI in 2024.
Population estimates, 2000–2024
What are Ottawa County, MI’s age demographics?
About 54,000 Ottawa County residents are aged 65 and older in 2024. That represents 17.6% of its population. For comparison, the age group represents 19.6% of Michigan’s population and 18% in the US overall.
Another 68,100 Ottawa County residents, or 22.2% of the population, were children under 18. For comparison, the age group represents 20.8% of Michigan’s population and 21.6% in the US overall.
A higher share of Ottawa County, MI's population is aged 18–24 than the US as a whole.
Population estimates by age group, (2024)
What are Ottawa County, MI’s racial and ethnic demographics?
Non-Hispanic white residents make up 82.4% of the Ottawa County, MI population, higher than the national share of 57.5%.
In contrast, Ottawa County’s non-Hispanic Black or African American population accounts for 1.8%, below the 12.6% nationwide, and the Hispanic population makes up 10.6% of the county, compared with 20% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Ottawa County, MI has a higher share of a non-Hispanic white population than Michigan as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Ottawa County, MI is Georgetown with about 55,600 residents in 2024.
Cities and towns in Ottawa County, MI ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Georgetown | 55,552 |
| 2. | Holland | 40,521 |
| 3. | Holland (pt.) | 27,092 |
| 4. | Allendale | 26,941 |
| 5. | Grand Haven | 19,647 |
| 6. | Park | 19,128 |
| 7. | Zeeland | 12,261 |
| 8. | Grand Haven | 11,045 |
| 9. | Jamestown | 10,462 |
| 10. | Tallmadge | 9,165 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
