THE MONTGOMERY COUNTY LAND BRIEF
Land in the
Triassic Lowlands setting.
Montgomery County has 482.9 square miles of land in Pennsylvania. 4 mapped landscape regions meet across Montgomery County: Triassic Lowlands, Piedmont Uplands, Trap Rock and Conglomerate Uplands, 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
Montgomery County intersects 4 mapped regional units. The largest mapped shares are:
- Triassic Lowlands69%
- Piedmont Uplands17.5%
- Trap Rock and Conglomerate Uplands10.1%
- Piedmont Limestone/Dolomite Lowlands3.3%
Finding your parcel within Montgomery County
The atlas lists 110 cities, towns, townships, and Census communities associated with Montgomery County, including Lower Merion, Limerick, New Hanover. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Montgomery County by land and water
The Census records 4.25 square miles of water within Montgomery County, or 0.9% of its total area. That share is close to Montgomery County’s 0.9%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Montgomery County has 29.8 times the land area of nearby Worcester township (16.2 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Berks County, Bucks County, Chester County, Delaware County, Lehigh County, Philadelphia County within Pennsylvania. A tract near one of these lines should be matched to the county identifier on its own records.