St. Mary Parish, LA GIS parcel data download

Download St. Mary Parish, Louisiana GIS parcel data - 31,689 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: LandAI St. Mary upload date (user-directed freshness fallback); last loaded into LandAI on 2026-05-22.

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 St. Mary Parish dataset

Field completeness measured across 31,689 active parcels (LandAI St. Mary upload date (user-directed freshness fallback); last loaded into LandAI on 2026-05-22):

FieldCoverage
Owner names98.5%
Site addresses98.4%
Owner mailing addresses98.4%
Deeded acres100%
Calculated (GIS) acres100%
Land use98.5%
Last sale price98.1%
Market total value98.5%
Legal description98.5%

These are 9 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.

St. Mary Parish parcel data FAQ

How many parcels are in St. Mary Parish, LA?

St. Mary Parish, Louisiana has 31,689 active parcels in the LandAI dataset (source data as of 2026/05/21).

What fields are included in St. Mary Parish parcel data?

Every parcel includes the standardized LandAI schema: parcel ID and geometry plus owner names (98.5%), site addresses (98.4%), owner mailing addresses (98.4%), deeded acres (100%), calculated (GIS) acres (100%), land use (98.5%), last sale price (98.1%), market total value (98.5%), and more.

What formats can I download St. Mary Parish 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 St. Mary Parish parcel data?

LandAI St. Mary upload date (user-directed freshness fallback); last loaded into LandAI on 2026-05-22.

Does St. Mary Parish parcel data include owner names?

Yes - 98.5% of St. Mary Parish parcels include a normalized owner name, along with owner mailing addresses where the county provides them.

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