THE DELAWARE LAND BRIEF
Land in the
Northern Limestone/Dolomite Valleys setting.
Delaware township has 30.1 square miles of land in Northumberland County. Its Census reference point is in Northern Limestone/Dolomite Valleys, within Ridge and Valley.
Long, roughly parallel ridges and valleys follow folded and faulted rock layers. Limestone valleys, sandstone ridges and other geologic contrasts produce varied terrain and numerous regional springs and caves.
Regional context: Ridge and Valley ↗ · Classification at the Census reference point
Delaware and Northumberland County
Delaware is associated with Northumberland 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.
Delaware by land and water
The Census records 1.09 square miles of water within Delaware, or 3.5% of its total area. It is 0.6 percentage points lower than the 4.1% recorded for Northumberland County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Delaware township has 14.8 times the land area of nearby Dewart CDP (2.04 square miles). These areas describe boundaries, not comparable property prices.

