THE LANCASTER COUNTY LAND BRIEF
Land in the
Piedmont Limestone/Dolomite Lowlands setting.
Lancaster County has 943.9 square miles of land in Pennsylvania. 5 mapped landscape regions meet across Lancaster County: Piedmont Limestone/Dolomite Lowlands, Piedmont Uplands, Triassic Lowlands, among others.
Rounded low hills, open valleys and irregular plains form a transition between Appalachian highlands and the coastal plain. The underlying geology mixes metamorphic, igneous and sedimentary rocks.
Regional context: Northern Piedmont ↗ · Regional mapping across the county footprint
Where the landscape changes
Lancaster County intersects 5 mapped regional units. The largest mapped shares are:
- Piedmont Limestone/Dolomite Lowlands51.7%
- Piedmont Uplands31.6%
- Triassic Lowlands9.7%
- Trap Rock and Conglomerate Uplands6.7%
- Reading Prong0.3%
Northeastern Highlands in Lancaster County
Forested hills and mountains span northern New England, the Adirondacks and higher Catskills. Glacial lakes and steep streams accompany a transition between northern hardwood and spruce-fir forests.
Read the regional source ↗Finding your parcel within Lancaster County
The atlas lists 107 cities, towns, townships, and Census communities associated with Lancaster County, including Rapho, Salisbury, Manor. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Lancaster County by land and water
The Census records 39.9 square miles of water within Lancaster County, or 4.1% of its total area. That share is close to Lancaster County’s 4.1%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Lancaster County has 48 times the land area of nearby East Lampeter township (19.7 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Berks County, Chester County, Dauphin County, Lebanon County, York County within Pennsylvania. A tract near one of these lines should be matched to the county identifier on its own records.

