GIS Maps

GIS Tax Parcel Base Map Data

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  • Registered to state plane coordinate system (NAD 83 California Zone V in feet).
  • Created using ESRI's ARCINFO product.
  • Can be used with any GIS or CAD software

Over 2.3 million parcels exist today in Los Angeles County. These parcels, which are numbered individually to uniquely identify and track their historical evolution, cover an area of over 4,080 square miles, including 88 cities and numerous unincorporated communities. Using GIS Tax Parcel Base Map means accuracy, versatility and compatibility!

This GIS Tax Parcel Base Map is the standard for parcel level data in both the government and private sectors.

Various recorded boundaries that define the Assessor's parcels with the Assessor's unique Identification Number can be provided.

One base map for the entire county allows large areas or specific parcels to be examined.

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Phone  |  213.974.3363   or   213.974.2026

Dates   |   Monday through Friday (except holidays)

Hours   |   7:30 am to 5:00 pm PST

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For technical questions/information, please call our Mapping Section at 213.974.7352 or send an e-mail to They are open Monday through Thursday from 7:00 AM to 5:00 PM. PST

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