Allegan County's 2026 population is estimated at 123,539, reflecting a 0.45% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Allegan County is the 18th largest county in Michigan. The 2010 population was 111,521 and has grown 10.78% since 2010.
Data after 2023 is projected based on recent change
Overall: 41 years
Female: 41.3 years
Male: 40.6 years
There are 93,244 adults, (22,378 of whom are seniors) in Allegan County.
Female: 60,393 (49.7%)
Male: 61,063 (50.3%)
The racial composition of Allegan County includes 87.21% White, and smaller percentages for other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 105,919 | 87.21% |
| Two or more races | 9,357 | 7.7% |
| Other race | 3,292 | 2.71% |
| Black or African American | 1,483 | 1.22% |
| Asian | 838 | 0.69% |
| Native American | 539 | 0.44% |
| Native Hawaiian or Pacific Islander | 28 | 0.02% |
Allegan County 's average per capita income is $51,065. Household income levels show a median of $83,283. The poverty rate stands at 8.37%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $104,911 | $126,594 |
| Families | $96,937 | $115,708 |
| Households | $83,283 | $103,889 |
| Non Families | $45,676 | $65,350 |
Average Income
Median Household Income
Poverty Rate
