Los Angeles Assessor Parcel Numbers: Linking APNs to Parcel IDs

Official Assessor Parcel Numbers (APNs) from the County of Los Angeles are maintained by the Bureau of Engineering to link property identifiers to spatial parcels. This dataset provides a key crosswalk between administrative APNs and their corresponding Parcel Identification Numbers (PINs) for GIS integration. The associated parcel boundary layer is available separately from the City of Los Angeles's open data portal.

Use Cases

• Linking property tax records to parcel maps using APN and PIN.
• Validating parcel identifier consistency across city systems using APN and AUTO_ID.
• Joining administrative datasets to spatial geometries using the PIN column.

Strengths

• Data is officially sourced and maintained by the Los Angeles County Assessor and Bureau of Engineering.
• Provides a direct link to an authoritative GIS parcel layer from the City of Los Angeles.
• Available on multiple government open data platforms, indicating official status and reliability.

Limitations

• Key metadata such as row count, file size, and specific license details are missing or inconsistent across platforms.
• The 'other-license-specified' tag on one platform conflicts with unspecified licenses on others, requiring user verification.
• Column details are only available from one source, limiting understanding of the complete data structure.

Provenance

Source

County of Los Angeles Assessor; maintained by the City of Los Angeles Bureau of Engineering.

Collection Method

Officially assigned and entered for administrative and mapping purposes.

Time Range

null

Freshness

2026-04-05

Geography

City of Los Angeles, California, USA.