THE HARRISON COUNTY LAND BRIEF
Land in the
Unglaciated Upper Muskingum Basin setting.
Harrison County has 402.3 square miles of land in Ohio. 2 mapped landscape regions meet across Harrison County: Unglaciated Upper Muskingum Basin, Monongahela Transition Zone.
Rounded wooded hills and intervening valleys form an unglaciated plateau landscape. Valley floors contain much of the region's open land, contrasting with its more forested slopes.
Regional context: Western Allegheny Plateau ↗ · Regional mapping across the county footprint
Where the landscape changes
Harrison County intersects 2 mapped regional units. The largest mapped shares are:
- Unglaciated Upper Muskingum Basin55.3%
- Monongahela Transition Zone44.6%
Finding your parcel within Harrison County
The atlas lists 26 cities, towns, townships, and Census communities associated with Harrison County, including Green, Cadiz, Washington. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Harrison County by land and water
The Census records 8.44 square miles of water within Harrison County, or 2.1% of its total area. That share is close to Harrison County’s 2.1%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Harrison County has 11.7 times the land area of nearby Cadiz township (34.3 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Belmont County, Carroll County, Guernsey County, Jefferson County, Tuscarawas County within Ohio. A tract near one of these lines should be matched to the county identifier on its own records.

