Union County, MS GIS parcel data download

Download Union County, Mississippi GIS parcel data - 20,487 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: UNION viewer parcel layer Data Last Edit Date: 2025-07-15; last loaded into LandAI on 2026-05-14.

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 Union County dataset

Field completeness measured across 20,487 active parcels (UNION viewer parcel layer Data Last Edit Date: 2025-07-15; last loaded into LandAI on 2026-05-14):

FieldCoverage
Owner names99.8%
Site addresses55.9%
Owner mailing addresses95.5%
Deeded acres79.6%
Calculated (GIS) acres79.6%
Land use99.8%
Market total value94.1%
Legal description99.1%

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.

Union County parcel data FAQ

How many parcels are in Union County, MS?

Union County, Mississippi has 20,487 active parcels in the LandAI dataset (source data as of 2025-07-15).

What fields are included in Union County parcel data?

Every parcel includes the standardized LandAI schema: parcel ID and geometry plus owner names (99.8%), site addresses (55.9%), owner mailing addresses (95.5%), deeded acres (79.6%), calculated (GIS) acres (79.6%), land use (99.8%), market total value (94.1%), legal description (99.1%), and more.

What formats can I download Union 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 Union County parcel data?

UNION viewer parcel layer Data Last Edit Date: 2025-07-15; last loaded into LandAI on 2026-05-14.

Does Union County parcel data include owner names?

Yes - 99.8% of Union County parcels include a normalized owner name, along with owner mailing addresses where the county provides them.

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