La Mesa CA ZIP Code
La Mesa city is located in California State, San Diego County and has a unique zip code assigned by the US Postal Service Office.
You can search for the La Mesa CA zip code by its streets and block numbers if we have some of the La Mesa streets loaded in our website
La Mesa Area Code is 619 and Time Zone is Pacific (GMT -08:00).
La Mesa Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the La Mesa City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the La Mesa ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in La Mesa, California.
The La Mesa Zip Code is 91941, 91942, 91943, 91944.
If you want to send a mail to La Mesa City, you should use the 91941, 91942, 91943, 91944 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded La Mesa ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 91941, 91942, 91943, 91944 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a La Mesa city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in California.