Mapshare: UCLA's Spatial Data Repository

NEW! The ESRI Data & Maps collection was just released in the summer of 2010 and is available here under the series name "ESRI 10". It contains the most up to date data for the United States (including street layers, census layers with basic demographic attributes).

NEW! Parcel Layer and Tax Roll Data

Parcel data and tax local roll data is now available for download. The attributes included in the local roll data is described here.

To use this data in ArcMap, add the parcel shapefile and the local roll text data in ArcMap, and join them by the "AIN" field.

• Los Angeles County Parcel Shapefile (525MB)
• Los Angeles County Local Roll (txt format) (130MB zipped, 945MB unzipped)