THE DONORA LAND BRIEF
Land in the
Monongahela Transition Zone setting.
Donora borough has 1.9 square miles of land in Washington County. Its Census reference point is in Monongahela Transition Zone, within Western Allegheny Plateau.
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 ↗ · Classification at the Census reference point
Donora and Washington County
Donora is associated with Washington 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.
Donora by land and water
The Census records 0.15 square miles of water within Donora, or 7.3% of its total area. It is 6.8 percentage points higher than the 0.4% recorded for Washington County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Donora borough has 3.2 times the land area of nearby Webster CDP (0.59 square miles). These areas describe boundaries, not comparable property prices.

