THE JANESVILLE LAND BRIEF
Land in the
Rock River Drift Plain setting.
Janesville town has 26.8 square miles of land in Rock County. Its Census reference point is in Rock River Drift 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
Janesville and Rock County
Janesville is associated with Rock 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.
Janesville by land and water
The Census records 0.42 square miles of water within Janesville, or 1.6% of its total area. It is 0.5 percentage points higher than the 1.1% recorded for Rock County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Janesville town has 77.3% of the land area of nearby Janesville city (34.6 square miles). These areas describe boundaries, not comparable property prices.

