THE HARTLEY LAND BRIEF
Land in the
Northern Sandstone Ridges setting.
Hartley township has 79.6 square miles of land in Union County. Its Census reference point is in Northern Sandstone Ridges, 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
Hartley and Union County
Hartley is associated with Union 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.
Hartley by land and water
The Census records 0.55 square miles of water within Hartley, or 0.7% of its total area. It is 0.1 percentage points higher than the 0.6% recorded for Union County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Hartley township has 139.7 times the land area of nearby Laurelton CDP (0.57 square miles). These areas describe boundaries, not comparable property prices.

