THE WILLIAMS COUNTY LAND BRIEF
Land in the
Clayey High Lime Till Plains setting.
Williams County has 420.7 square miles of land in Ohio. 3 mapped landscape regions meet across Williams County: Clayey High Lime Till Plains, Paulding Plains, Maumee Lake Plain.
Rolling glacial till plains are interrupted by end moraines and areas of older, more dissected deposits. The historical landscape had more tree cover than the Central Corn Belt to the west.
Regional context: Eastern Corn Belt Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Williams County intersects 3 mapped regional units. The largest mapped shares are:
- Clayey High Lime Till Plains78.9%
- Paulding Plains13.1%
- Maumee Lake Plain8.1%
Huron/Erie Lake Plains in Williams County
A broad former lake plain is interrupted by old beach ridges, dunes and glacial moraines. The landscape is mostly low-relief, with important differences between sandy rises and lower ground.
Read the regional source ↗Finding your parcel within Williams County
The atlas lists 26 cities, towns, townships, and Census communities associated with Williams County, including Florence, Jefferson, Superior. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Williams County by land and water
The Census records 2.43 square miles of water within Williams County, or 0.6% of its total area. That share is close to Williams County’s 0.6%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Williams County has 146.4 times the land area of nearby Montpelier village (2.87 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Defiance County, Fulton County, Henry County within Ohio. A tract near one of these lines should be matched to the county identifier on its own records.

