Allegan County, MI Demographics
Allegan County, MI is the 18th most populous of 83 counties in Michigan, with 120,502 residents across 825 square miles. That is about 146 people per square mile.
At the 2020 census
| Population | 120,502 |
|---|---|
| Land area | 825 sq mi |
| Density | 146 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Allegan County compares to the US
We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.
Central Location: Allegan County, MI
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Allegan County, MI — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Allegan County, MI
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Nearest counties
Metro areas containing Allegan County
About this page
This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.
Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.