THE PORTAGE LAND BRIEF
Land in the
Southeastern Wisconsin Savannah and Till Plain setting.
Portage city has 8.92 square miles of land in Columbia County. Its Census reference point is in Southeastern Wisconsin Savannah and Till Plain, within Southeastern Wisconsin Till Plains.
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 ↗ · Classification at the Census reference point
Portage and Columbia County
Portage is associated with Columbia County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Portage by land and water
The Census records 0.8 square miles of water within Portage, or 8.2% of its total area. It is 4.4 percentage points higher than the 3.8% recorded for Columbia County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Portage city has 45.9% of the land area of nearby Pacific town (19.4 square miles). These areas describe boundaries, not comparable property prices.

