Menu
Virginia · County atlas

Fairfax County map

Explore the boundary, see its place in Virginia, and download a map for your next project.

FIPS 510592025 Census boundariesFree PDF · PNG · SVG
Download map ↓
Boundary map 100%
Boundary map of Fairfax County, Virginia Fairfax County
2025 U.S. Census boundaries. Detailed county outline. Zoom or expand for a closer look.
391 sq miLand area
15.4 sq miWater area
3.8%Share of area that is water
51059Five-digit county FIPS code

Download this map

Choose a format for printing, editing, or sharing. All downloads are free.

SVG

SVG is editable vector artwork. PNG is a high-resolution image. PDF uses landscape Letter pages, with a separate key when needed.

Downloads contain the complete boundary map, independent of zoom. Boundary data (GeoJSON) · Reuse with source credit.

Roads, terrain & aerial imagery

Explore Fairfax County, Virginia with a county boundary overlay. Choose a view to load the interactive map.

Select a map view above

Street names, terrain, or aerial photography with the county boundary in view.

Backgrounds load from OpenStreetMap or USGS only when selected. Imagery dates and detail vary by location.

Fairfax County at a glance

Fairfax County is one of 133 county-level areas in Virginia. Its 391 square miles of land place it at position 47 among those areas by land size. Including 15.4 square miles of water, its mapped total area is approximately 406.4 square miles.

Full Census nameFairfax County
StateVirginia
FIPS / GEOID51059
Boundary vintage2025
Outline source scale1:500,000

Counties along the boundary

These county-level areas share a line segment with Fairfax County in the Census cartographic boundary dataset. Select one to continue exploring.

Looking for another Fairfax County?

The short name “Fairfax” also appears elsewhere. The state and FIPS code distinguish this area.

Using this map

Choose a blank outline for coloring or a labelled download for reference. SVG preserves editable boundary artwork, PNG works in slides, and PDF provides a ready-to-print landscape page. Use the full state map to compare surrounding counties.

Roads, topography, and aerial imagery are available in the interactive background viewer. Those backgrounds have their own dates and sources; the red boundary overlay follows the 2025 Census geography.

Sources and precision

U.S. Census Bureau, 2025 Cartographic Boundary Files. The county outline uses the 1:500,000 file; location maps and interactive overlays use 1:5,000,000. Areas come from ALAND and AWATER, converted to square miles and rounded to one decimal place. Neighbor links are calculated from shared boundary segments, not from point-only contacts. Generalized maps are for geographic reference, not parcel or legal boundary determination. Full methodology.