Tustin, CA ZIP Codes
Tustin, California has 3 ZIP codes: 2 for street addresses ( and ) and 1 for PO boxes ().
Your street decides which one you use.
Which Tustin 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?
Tustin ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
92781 has no area on the map: it is a PO box or single-organization ZIP code. Dashed line: Tustin city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Tustin ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 92780 | street delivery Tustin |
| 92781 | PO boxes at the Tustin post office Tustin |
| 92782 | street delivery Tustin |
ZIP codes from nearby towns that reach into Tustin
- 92705, mailing town Santa Ana, covers 5 percent of Tustin
Why your mail may say Tustin when you live outside it
A letter addressed to Tustin can go to a home outside the city limits, because ZIP areas follow delivery routes, not town lines.
The reverse happens too: parts of Tustin use 92705, which mails under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Orange County property records show which city you are in.
Tustin ZIP code questions
What is the main ZIP code for Tustin?
92780, the ZIP code of the main Tustin post office at 340 E 1st St.
Which Tustin ZIP codes are for PO boxes only?
92781. Mail to it goes to boxes at the post office, not to street addresses.
What county is Tustin in?
Orange County.
ZIP codes for towns near Tustin
More towns near Tustin: Anaheim, Garden Grove, Lake Forest, Westminster, Placentia, Yorba Linda, Huntington Beach, Aliso Viejo, Stanton.
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