THE PRINCE WILLIAM COUNTY LAND BRIEF
Land in the
Triassic Lowlands setting.
Prince William County has 335.3 square miles of land in Virginia. 5 mapped landscape regions meet across Prince William County: Triassic Lowlands, Northern Inner Piedmont, Rolling Coastal Plain, 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
Prince William County intersects 5 mapped regional units. The largest mapped shares are:
- Triassic Lowlands39.3%
- Northern Inner Piedmont38.9%
- Rolling Coastal Plain10.8%
- Trap Rock and Conglomerate Uplands8.8%
- Piedmont Uplands2.2%
Piedmont in Prince William County
The Piedmont is a belt of irregular plains and hills between the Appalachians and the coastal plain. A complex mixture of older rocks underlies its pine and hardwood woodland landscapes.
Read the regional source ↗Southeastern Plains in Prince William County
Irregular plains of sand, silt and clay support a mix of pine and hardwood landscapes. The region has more relief than the lower coastal plain, with generally gentle stream gradients.
Read the regional source ↗Finding your parcel within Prince William County
The atlas lists 25 cities, towns, townships, and Census communities associated with Prince William County, including Buckhall, Dale City, Linton Hall. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Prince William County by land and water
The Census records 11.9 square miles of water within Prince William County, or 3.4% of its total area. That share is close to Prince William County’s 3.4%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Prince William County has 17 times the land area of nearby Buckhall CDP (19.7 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Fairfax County, Fauquier County, Loudoun County, Manassas Park city, Manassas city, Stafford County within Virginia. A tract near one of these lines should be matched to the county identifier on its own records.

