San Joaquin County, CA parcel data download

Download San Joaquin County, California parcel data - 252,646 parcels with standardized boundaries and available property fields. Review county-specific completeness before checkout. Instant delivery in Shapefile, FileGDB, GeoPackage, GeoJSON & CSV. $100 per county.

Data freshness: San Joaquin Tax Parcels VALUE_ROLL_YEAR 2025; last loaded into LandAI on 2026-05-20.

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 San Joaquin County dataset

Field completeness measured across 252,646 active parcels (San Joaquin Tax Parcels VALUE_ROLL_YEAR 2025; last loaded into LandAI on 2026-05-20):

FieldCoverage
Owner names99.8%
Site addresses96.5%
Owner mailing addresses99.2%
Deeded acres97.2%
Calculated (GIS) acres100%
Market total value96.0%
Building square footage86.0%

These are 7 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.

San Joaquin County parcel data FAQ

How many parcels are in San Joaquin County, CA?

San Joaquin County, California has 252,646 active parcels in the LandAI dataset (source data as of 2025).

What fields are included in San Joaquin County parcel data?

The dataset uses LandAI's standardized parcel schema. Field availability varies by source and record. Current measured completeness includes owner names (99.8%), site addresses (96.5%), owner mailing addresses (99.2%), deeded acres (97.2%), calculated (GIS) acres (100%), market total value (96.0%), building square footage (86.0%).

What formats can I download San Joaquin County 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 San Joaquin County parcel data?

San Joaquin Tax Parcels VALUE_ROLL_YEAR 2025; last loaded into LandAI on 2026-05-20.

Does San Joaquin County parcel data include owner names?

99.8% of San Joaquin County parcels currently include a normalized owner name. Mailing-address coverage is measured and reported separately when the source provides it.

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