THE ORLEANS COUNTY LAND BRIEF
Land in the
Ontario Lowlands setting.
Orleans County has 391.3 square miles of land in New York. 2 mapped landscape regions meet across Orleans County: Ontario Lowlands, Erie/Ontario Lake Plain.
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.
Regional context: Eastern Great Lakes Lowlands ↗ · Regional mapping across the county footprint
Where the landscape changes
Orleans County intersects 2 mapped regional units. The largest mapped shares are:
- Ontario Lowlands55%
- Erie/Ontario Lake Plain45%
Finding your parcel within Orleans County
The atlas lists 14 cities, towns, townships, and Census communities associated with Orleans County, including Barre, Ridgeway, Shelby. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Orleans County by land and water
The Census records 426.2 square miles of water within Orleans County, or 52.1% of its total area. That share is close to Orleans County’s 52.1%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Orleans County has 11.4 times the land area of nearby Gaines town (34.4 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Genesee County, Monroe County, Niagara County within New York. A tract near one of these lines should be matched to the county identifier on its own records.

