THE HERNDON LAND BRIEF
Land in the
Triassic Lowlands setting.
Herndon town has 4.29 square miles of land in Fairfax County, Loudoun County. Its Census reference point is in Triassic Lowlands, 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
One place name. 2 county geographies.
Herndon intersects 2 county geographies: Fairfax County, Loudoun County. A Herndon mailing address alone cannot choose the right record office; use the county and parcel identifier on the tax bill or deed.
Herndon by land and water
The Census records <0.01 square miles of water within Herndon, or 0.2% of its total area. It is 7.5 percentage points lower than the 7.7% recorded for Virginia. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Herndon town has 7.8 times the land area of nearby Hutchison CDP (0.55 square miles). These areas describe boundaries, not comparable property prices.

