US Postal Service ZIP Code boundaries. For more information, click here.

This layer shows parcel-based postal ZIP Code boundaries encompassing all of Los Angeles County. Sources: United States Postal Service, County of Los Angeles Office of the Assessor, County of Los Angeles Registrar-Recorder / County Clerk (RRCC) Countywide Address Management System (CAMS), Thomas Bros. Maps, U.S. Census Bureau TIGER line data, LAR-IAC digital orthographic and oblique aerial imagery, and Google Maps / Street View. Created: 2010 (created using this sources by the Los Angeles County Regional Planning, GIS Section).

UPDATE HISTORY:

• 7/1/2015 - changed two parcels parcels with the wrong ZIP Code

• 4/20/2016 - Update between 90059 & 90262 @ Mona Blvd. (Lynwood Sheriff Station)

• 6/23/2016 - Update between 90058, 90040 & 90201 @ E 52nd Dr. (90201 is now a single polygon)

• 7/7/2016 - Update between 90044 & 90003 @ W. 70th St.

• 7/7/2016 - Update between 90011 & 90058 on Long Beach Ave.

• 7/7/2016 - Update to 90704 for both Catalina & San Clemente Islands. Area modified to mirror existing

Legal vs. Postal Cities

Many users confuse the name the Post Office delivers to (e.g. Van Nuys, Hollywood) as a legal city (in this case Los Angeles), when they are, in fact, a postal city. The County contains 88 legal cities, and over 400 postal names that are tied to the ZIP Codes. To support useability and geocoding, we have attached the first 3 postal cities to each address, based upon its ZIP Code.

For a full list of zipcode to postal city correlations, see this file: zipcodexxpostalcities (201406) – Excel file