THE ALLEGAN COUNTY LAND BRIEF
Land in the
Lake Michigan Moraines setting.
Allegan County has 825.4 square miles of land in Michigan. 5 mapped landscape regions meet across Allegan County: Lake Michigan Moraines, Michigan Lake Plain, Battle Creek/Elkhart Outwash Plain, among others.
Lakes, marshes and complex glacial deposits create a varied landscape around southern Michigan and northern Indiana. Moraines, beach ridges, dunes, kettles and meltwater channels occur across the region.
Regional context: Southern Michigan/Northern Indiana Drift Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Allegan County intersects 5 mapped regional units. The largest mapped shares are:
- Lake Michigan Moraines46.1%
- Michigan Lake Plain36.6%
- Battle Creek/Elkhart Outwash Plain14.3%
- Interlobate Dead Ice Moraines1.6%
- Lansing Loamy Plain1.4%
Finding your parcel within Allegan County
The atlas lists 36 cities, towns, townships, and Census communities associated with Allegan County, including Casco, Dorr, Hopkins. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Allegan County by land and water
The Census records 1,007.9 square miles of water within Allegan County, or 55% of its total area. That share is close to Allegan County’s 55%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Allegan County has 238.6 times the land area of nearby South Haven city (3.46 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Barry County, Kalamazoo County, Kent County, Ottawa County, Van Buren County within Michigan. A tract near one of these lines should be matched to the county identifier on its own records.

