THE BUTLER COUNTY LAND BRIEF
Land in the
Pittsburgh Low Plateau setting.
Butler County has 789.5 square miles of land in Pennsylvania. 2 mapped landscape regions meet across Butler County: Pittsburgh Low Plateau, Low Lime Drift Plain.
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
Butler County intersects 2 mapped regional units. The largest mapped shares are:
- Pittsburgh Low Plateau95.1%
- Low Lime Drift Plain4.9%
Erie Drift Plain in Butler County
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.
Read the regional source ↗Finding your parcel within Butler County
The atlas lists 71 cities, towns, townships, and Census communities associated with Butler County, including Slippery Rock, Cherry, Marion. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Butler County by land and water
The Census records 6.18 square miles of water within Butler County, or 0.8% of its total area. That share is close to Butler County’s 0.8%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Butler County has 32.4 times the land area of nearby Center township (24.4 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Allegheny County, Armstrong County, Beaver County, Clarion County, Lawrence County, Mercer County, Venango County, Westmoreland County within Pennsylvania. A tract near one of these lines should be matched to the county identifier on its own records.

