Check out this site for zip codes in California. I'm sorry, but "postcode for Los Angeles" is just tooooo broad a question -- you have to narrow that down to a smaller area. Good luck! http://www.mongabay.com/igapo/zip_codes/CA.htm Los Angeles has many postcodes, known as ZIP Codes in the US. They all begin with "90". Your best bet for finding a ZIP for LA is to use the USPS ZIP Code locator at: http://zip4.usps.com/zip4/welcome.jsp Note that since LA has many ZIP Codes you may need a specific address to find a specific ZIP Code.