THE ASHTABULA COUNTY LAND BRIEF
Land in the
Mosquito Creek/Pymatuning Lowlands setting.
Ashtabula County has 702.4 square miles of land in Ohio. 4 mapped landscape regions meet across Ashtabula County: Mosquito Creek/Pymatuning Lowlands, Erie/Ontario Lake Plain, Low Lime Drift Plain, among others.
Low rounded hills, glacial moraines, kettles and wetland areas define the Erie Drift Plain. Its terrain is more varied than nearby flatter farming regions and less rugged than the unglaciated plateaus.
Regional context: Erie Drift Plain ↗ · Regional mapping across the county footprint
Where the landscape changes
Ashtabula County intersects 4 mapped regional units. The largest mapped shares are:
- Mosquito Creek/Pymatuning Lowlands82.7%
- Erie/Ontario Lake Plain14.3%
- Low Lime Drift Plain2%
- Erie Gorges1%
Eastern Great Lakes Lowlands in Ashtabula County
Glacially shaped lowlands and irregular plains border the Great Lakes and adjacent hills. The lakes influence regional weather, while local landforms reflect both glacial deposits and former shorelines.
Read the regional source ↗Finding your parcel within Ashtabula County
The atlas lists 41 cities, towns, townships, and Census communities associated with Ashtabula County, including Monroe, Saybrook, Pierpont. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Ashtabula County by land and water
The Census records 665.8 square miles of water within Ashtabula County, or 48.7% of its total area. That share is close to Ashtabula County’s 48.7%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Ashtabula County has 34.7 times the land area of nearby Ashtabula township (20.2 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Geauga County, Lake County, Trumbull County within Ohio. A tract near one of these lines should be matched to the county identifier on its own records.

