Loudoun County, VA GIS parcel data download

Download Loudoun County, Virginia GIS parcel data - 153,123 parcels with owner names, site & mailing addresses, acreage, land use, and sale values. Instant delivery in Shapefile, FileGDB, GeoPackage, GeoJSON & CSV. $100 per county.

Data freshness: Loudoun iasWorld public assessment site: Data Current as of; last loaded into LandAI on 2026-05-08.

Every purchase includes all five export formats (Shapefile, FileGDB, GeoPackage, GeoJSON & CSV), standardized to the LandAI parcel schema with WGS84 (EPSG:4326) geometry. After checkout you choose which formats to generate and download them for 45 days.

What's in the Loudoun County dataset

Field completeness measured across 153,123 active parcels (Loudoun iasWorld public assessment site: Data Current as of; last loaded into LandAI on 2026-05-08):

FieldCoverage
Owner names100%
Site addresses98.6%
Owner mailing addresses100%
Deeded acres100%
Calculated (GIS) acres100%
Land use100%
Market total value98.6%
Legal description100%

These are 8 of the 48 standardized fields in the LandAI parcel schema. Live per-field completeness for every field is shown on this page's interactive view.

Loudoun County parcel data FAQ

How many parcels are in Loudoun County, VA?

Loudoun County, Virginia has 153,123 active parcels in the LandAI dataset (source data as of 2026-04-30).

What fields are included in Loudoun County parcel data?

Every parcel includes the standardized LandAI schema: parcel ID and geometry plus owner names (100%), site addresses (98.6%), owner mailing addresses (100%), deeded acres (100%), calculated (GIS) acres (100%), land use (100%), market total value (98.6%), legal description (100%), and more.

What formats can I download Loudoun County GIS parcel data in?

Shapefile, FileGDB, GeoPackage, GeoJSON & CSV. Every $100 county purchase includes all five formats; you choose which to generate after checkout and can re-download for 45 days.

How current is the Loudoun County parcel data?

Loudoun iasWorld public assessment site: Data Current as of; last loaded into LandAI on 2026-05-08.

Does Loudoun County parcel data include owner names?

Yes - 100% of Loudoun County parcels include a normalized owner name, along with owner mailing addresses where the county provides them.

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