San Leandro, CA ZIP Codes
San Leandro, California has 3 ZIP codes: 3 for street addresses (, and ).
Your street decides which one you use.
Which San Leandro ZIP code is my address in?
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
San Leandro ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
Dashed line: San Leandro city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All San Leandro ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 94577 | street delivery Estudillo |
| 94578 | street delivery South San Leandro |
| 94579 | street delivery San Leandro |
Why your mail may say San Leandro when you live outside it
San Leandro ZIP codes also cover Ashland, so a letter addressed to San Leandro can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. Alameda County property records show which city you are in.
San Leandro ZIP code questions
What is the main ZIP code for San Leandro?
94579, the ZIP code of the main San Leandro post office at 1777 Abram Ct.
What county is San Leandro in?
Alameda County.
ZIP codes for towns near San Leandro
More towns near San Leandro: South San Francisco, San Mateo, Danville, Redwood City, Berkeley, Burlingame, San Ramon, Dublin, Walnut Creek.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections