THE POTOMAC LAND BRIEF
Land in the
Piedmont Uplands setting.
Potomac CDP has 25.2 square miles of land in Montgomery County. Its Census reference point is in Piedmont Uplands, within Northern Piedmont.
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 ↗ · Classification at the Census reference point
Potomac and Montgomery County
Potomac is associated with Montgomery 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.
Potomac by land and water
The Census records 1.42 square miles of water within Potomac, or 5.3% of its total area. It is 2.6 percentage points higher than the 2.7% recorded for Montgomery County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Potomac CDP has 21 times the land area of nearby Cabin John CDP (1.2 square miles). These areas describe boundaries, not comparable property prices.

