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California Statewide Parcel Boundaries


This is a collection of all of the parcel boundary datasets collected during the last round of parcel data collection by the Information Center for the Environment under funding from the California Strategic Growth Council.  This dataset includes one file for each of the 51 counties that were collected, as well as a CA_Merged file with the parcels merged into a single file.

Note – this data does not include attributes beyond the parcel ID number (PARNO) – that will be provided when available, most likely by the state of California.


A 3.4 Gb Zipped File Geodatabase (Parcels_CA_2014) is available for download.


All data originates with the county data sources. Please see the “ParcelInfo” table below, and within the database for source and date information.


A geodatabase with parcel boundaries for 51 (out of 58) counties in the State of California. The original target was to collect data for the close of the 2013 fiscal year. As the collection progressed, it became clear that holding to that time standard was not practical. Out of expediency, the date requirement was relaxed, and the currently available dataset was collected for a majority of the counties. Most of these were distributed with minimal metadata.

The table “ParcelInfo” includes the data that the data came into our possession, and our best estimate of the last time the parcel dataset was updated by the original source. Data sets listed as “Downloaded from” were downloaded from a publicly accessible web or FTP site from the county. Other data sets were provided directly to us by the county, though many of them may also be available for direct download.  These data have been reprojected to California Albers NAD84, but have not been checked for topology, or aligned to county boundaries in any way. Tulare County’s dataset arrived with an undefined projection and was identified as being California State Plane NAD83 (US Feet) and was assigned by ICE as that projection prior to reprojection. Kings County’s dataset was delivered as individual shapefiles for each of the 50 assessor’s books maintained at the county. These were merged to a single feature class prior to importing to the database.The attribute tables were standardized and truncated to include only a PARNO (APN). The format of these fields has been left identical to the original dataset. The Data Interoperablity Extension ETL tool used in this process is included in the zip file. Where provided by the original data sources, metadata for the original data has been maintained. Please note that the attribute table structure changes were made at ICE, UC Davis, not at the original data sources.

Parcel Source Information

County DateCollec DateCurren Notes
Alameda 4/8/2014 2/13/2014 Download from Alamenda County
Alpine 4/22/2014 1/26/2012 Alpine County Planning
Amador 5/21/2014 5/14/2014 Amador County Transportation Commission
Butte 2/24/2014 1/6/2014 Butte County Association of Governments
Calaveras 5/13/2014 Download from Calaveras County, exact date unknown, labelled 2013
Contra Costa 4/4/2014 4/4/2014 Contra Costa Assessor’s Office
Del Norte 5/13/2014 5/8/2014 Download from Del Norte County
El Dorado 4/4/2014 4/3/2014 El Dorado County Assessor
Fresno 4/4/2014 4/4/2014 Fresno County Assessor
Glenn 4/4/2014 10/13/2013 Glenn County Public Works
Humboldt 6/3/2014 4/25/2014 Humbodt County Assessor
Imperial 8/4/2014 7/18/2014 Imperial County Assessor
Kern 3/26/2014 3/16/2014 Kern County Assessor
Kings 4/21/2014 4/14/2014 Kings County
Lake 7/15/2014 7/19/2013 Lake County
Lassen 7/24/2014 7/24/2014 Lassen County
Los Angeles 10/22/2014 10/9/2014 Los Angeles County
Madera 7/28/2014 Madera County, Date Current unclear likely 7/2014
Marin 5/13/2014 5/1/2014 Marin County Assessor
Mendocino 4/21/2014 3/27/2014 Mendocino County
Merced 7/15/2014 1/16/2014 Merced County
Mono 4/7/2014 4/7/2014 Mono County
Monterey 5/13/2014 10/31/2013 Download from Monterey County
Napa 4/22/2014 4/22/2014 Napa County
Nevada 10/29/2014 10/26/2014 Download from Nevada County
Orange 3/18/2014 3/18/2014 Download from Orange County
Placer 7/2/2014 7/2/2014 Placer County
Riverside 3/17/2014 1/6/2014 Download from Riverside County
Sacramento 4/2/2014 3/12/2014 Sacramento County
San Benito 5/12/2014 4/30/2014 San Benito County
San Bernardino 2/12/2014 2/12/2014 Download from San Bernardino County
San Diego 4/18/2014 4/18/2014 San Diego County
San Francisco 5/23/2014 5/23/2014 Download from San Francisco County
San Joaquin 10/13/2014 7/1/2013 San Joaquin County Fiscal year close data
San Mateo 2/12/2014 2/12/2014 San Mateo County
Santa Barbara 4/22/2014 9/17/2013 Santa Barbara County
Santa Clara 9/5/2014 3/24/2014 Santa Clara County, Required a PRA request
Santa Cruz 2/13/2014 11/13/2014 Download from Santa Cruz County
Shasta 4/23/2014 1/6/2014 Download from Shasta County
Sierra 7/15/2014 1/20/2014 Sierra County
Solano 4/24/2014 Download from Solano Couty, Boundaries appear to be from 2013
Sonoma 5/19/2014 4/3/2014 Download from Sonoma County
Stanislaus 4/23/2014 1/22/2014 Download from Stanislaus County
Sutter 11/5/2014 10/14/2014 Download from Sutter County
Tehama 1/16/2015 12/9/2014 Tehama County
Trinity 12/8/2014 1/20/2010 Download from Trinity County, Note age of data 2010
Tulare 7/1/2014 6/24/2014 Tulare County
Tuolumne 5/13/2014 10/9/2013 Download from Tuolumne County
Ventura 11/4/2014 6/18/2014 Download from Ventura County
Yolo 11/4/2014 9/10/2014 Download from Yolo County
Yuba 11/12/2014 12/17/2013 Download from Yuba County




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Data Field Descriptions

PARNO - the Parcel ID Number

GIS Source Information
Database Name: eGIS_Cadastral
Feature Dataset Name (if applicable):
Reference Date: 2013,2014
Accuracy: Parcel
Update Frequency: Other
Access Constraints:None

Contact Information
Steve Steinberg
Geographic Information Officer
Los Angeles County
Internal Services Department
9150 E. Imperial Hwy, MS#3
33.916650, -118.132255
Downey, CA 90242
(562) 392-7126

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