THE ERIE COUNTY LAND BRIEF
Land in the
Cattaraugus Hills setting.
Erie County has 1,042.8 square miles of land in New York. 3 mapped landscape regions meet across Erie County: Cattaraugus Hills, Erie/Ontario Lake Plain, Ontario Lowlands.
Rolling hills, broad valleys and low mountains are mantled by glacial deposits. Sandstone, shale and siltstone underlie a mix of open land and woodland across the northern plateau.
Regional context: Northern Allegheny Plateau ↗ · Regional mapping across the county footprint
Where the landscape changes
Erie County intersects 3 mapped regional units. The largest mapped shares are:
- Cattaraugus Hills39.8%
- Erie/Ontario Lake Plain38.2%
- Ontario Lowlands22%
Eastern Great Lakes Lowlands in Erie 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 Erie County
The atlas lists 63 cities, towns, townships, and Census communities associated with Erie County, including Concord, Clarence, Amherst. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Erie County by land and water
The Census records 184.1 square miles of water within Erie County, or 15% of its total area. That share is close to Erie County’s 15%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Erie County has 27.1 times the land area of nearby Orchard Park town (38.4 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Cattaraugus County, Chautauqua County, Genesee County, Niagara County, Wyoming County within New York. A tract near one of these lines should be matched to the county identifier on its own records.

