THE SULLIVAN LAND BRIEF
Land in the
Glaciated Low Allegheny Plateau setting.
Sullivan township has 42.6 square miles of land in Tioga County. Its Census reference point is in Glaciated Low Allegheny Plateau, within Northern Allegheny Plateau.
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 ↗ · Classification at the Census reference point
Sullivan and Tioga County
Sullivan is associated with Tioga County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Sullivan by land and water
The Census records 0.11 square miles of water within Sullivan, or 0.2% of its total area. That share is close to Tioga County’s 0.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Sullivan township has 111.5 times the land area of nearby Mainesburg CDP (0.38 square miles). These areas describe boundaries, not comparable property prices.

