THE FOND DU LAC COUNTY LAND BRIEF
Land in the
Southeastern Wisconsin Savannah and Till Plain setting.
Fond du Lac County has 719.6 square miles of land in Wisconsin. 3 mapped landscape regions meet across Fond du Lac County: Southeastern Wisconsin Savannah and Till Plain, Lake Michigan Lacustrine Clay Plain, Kettle Moraines.
Glacial till plains support a transition between hardwood forest, oak savanna and prairie landscapes. Rolling farmland and woodland reflect this meeting of ecological regions in southeastern Wisconsin.
Regional context: Southeastern Wisconsin Till Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Fond du Lac County intersects 3 mapped regional units. The largest mapped shares are:
- Southeastern Wisconsin Savannah and Till Plain72.6%
- Lake Michigan Lacustrine Clay Plain16.3%
- Kettle Moraines11%
Finding your parcel within Fond du Lac County
The atlas lists 38 cities, towns, townships, and Census communities associated with Fond du Lac County, including Byron, Lamartine, Alto. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Fond du Lac County by land and water
The Census records 46.3 square miles of water within Fond du Lac County, or 6% of its total area. That share is close to Fond du Lac County’s 6%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Fond du Lac County has 41.1 times the land area of nearby Fond du Lac town (17.5 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Calumet County, Dodge County, Green Lake County, Sheboygan County, Washington County, Winnebago County within Wisconsin. A tract near one of these lines should be matched to the county identifier on its own records.

