THE GAINESVILLE LAND BRIEF
Land in the
Trap Rock and Conglomerate Uplands setting.
Gainesville CDP has 10.1 square miles of land in Prince William County. Its Census reference point is in Trap Rock and Conglomerate 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
Gainesville and Prince William County
Gainesville is associated with Prince William 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.
Gainesville by land and water
The Census records 0.57 square miles of water within Gainesville, or 5.3% of its total area. It is 1.9 percentage points higher than the 3.4% recorded for Prince William County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Gainesville CDP has 17.6 times the land area of nearby Haymarket town (0.57 square miles). These areas describe boundaries, not comparable property prices.

