Rancho Santa Margarita, CA ZIP Codes
Rancho Santa Margarita, California has 2 ZIP codes: 2 for street addresses ( and ).
Your street decides which one you use.
Which Rancho Santa Margarita 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?
Rancho Santa Margarita ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
Dashed line: Rancho Santa Margarita city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Rancho Santa Margarita ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 92679 | street delivery; mail may be addressed to Trabuco Canyon Rancho Santa Margarita |
| 92688 | street delivery Rancho Santa Margarita |
ZIP codes from nearby towns that reach into Rancho Santa Margarita
- 92678, mailing town Trabuco Canyon, covers 3 percent of Rancho Santa Margarita
Why your mail may say Rancho Santa Margarita when you live outside it
Rancho Santa Margarita ZIP codes also cover Coto de Caza, Las Flores and Trabuco Canyon, so a letter addressed to Rancho Santa Margarita can go to a home outside the city limits.
The reverse happens too: parts of Rancho Santa Margarita use 92678, 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.
Rancho Santa Margarita ZIP code questions
What is the main ZIP code for Rancho Santa Margarita?
92679, the ZIP code of the main Rancho Santa Margarita post office at 29862 Avenida de Las Bandera.
What county is Rancho Santa Margarita in?
Orange County.
ZIP codes for towns near Rancho Santa Margarita
More towns near Rancho Santa Margarita: Irvine, Temescal Valley, Dana Point, San Clemente, Tustin, Newport Beach, Lake Elsinore, Corona, Santa Ana.
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