How many people live in Alger County, MI?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 8,700 people living in Alger County, MI. That makes Alger County the 77th-most populous county in Michigan. It is home to 0.09% of people living in the state.
8.7K
population of Alger County, MI (2024)
0.09%
County share of the Michigan population (2024)
About 8,700 people lived in Alger County, MI in 2024.
Population estimates, 2000–2024
What are Alger County, MI’s age demographics?
About 2,500 Alger County, MI residents are aged 65 and older in 2024. That represents 28.9% of its population. For comparison, the age group represents 19.6% of Michigan’s population and 18% in the US overall.
Another 1,200 Alger County residents, or 14.2% 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 Alger County, MI's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Alger County, MI’s racial and ethnic demographics?
Non-Hispanic white residents make up 82.3% of the Alger County, MI population, higher than the national share of 57.5%. Alger County, MI also has a larger share of people identifying as non-Hispanic American Indian and Alaska Native (4.5%) than the US overall (0.72%).
In contrast, Alger County’s Hispanic population accounts for 1.9%, below the 20% nationwide, and the non-Hispanic Asian population makes up 0.51% of the county, compared with 6.5% 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.
Alger 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 Alger County, MI is Munising with about 2,800 residents in 2024.
Cities and towns in Alger County, MI ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Munising | 2,781 |
| 2. | Munising | 1,948 |
| 3. | Au Train | 1,015 |
| 4. | Mathias | 527 |
| 5. | Burt | 404 |
| 6. | Limestone | 387 |
| 7. | Onota | 369 |
| 8. | Chatham | 215 |
| 9. | Grand Island | 31 |
| 10. | Balance of Rock River | 1,018 |
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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.
