ZIP Code 92078 – San Marcos, California | ZipsCode.us
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ZIP Code 92078
San Marcos, California · San Diego
ZIP code 92078 belongs to the city of San Marcos in California (San Diego). See all California ZIP Codes.
ZIP code 92078 belongs to San Marcos, California, in San Diego. If you are mailing a letter or package to this area, use San Marcos, CA 92078 in the address. On this page you will find the city and county for 92078, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.
What City Is ZIP Code 92078?
The city for ZIP code 92078 is San Marcos, California. When you write an address in this area, the correct format is: Name, Street Address, San Marcos, CA 92078.
ZIP Code 92078 County and State
ZIP code 92078 is located in San Diego, California. For a complete list of cities and ZIP codes across the state, see the California ZIP Codes page.
Nearby ZIP Codes in San Diego
These ZIP codes are in the same county as 92078:
ZIP Code 92078 on the Map
The map below shows the approximate center of ZIP code 92078, near San Marcos, California. You can zoom in and drag the map to explore the area.
Map center is approximate (ZIP area center, around 33.1193, -117.185). Map data © OpenStreetMap.
Population and Demographics of ZIP Code 92078
According to public U.S. Census Bureau data, ZIP code 92078 is home to a community in California. The figures below come from the U.S. Census and the American Community Survey (ACS).
Source: U.S. Census Bureau, American Community Survey (ACS) 2023 5-year estimates and 2023 Gazetteer. Figures are estimates and change with each new survey.
Find an Address in ZIP Code 92078
Need the full ZIP+4 code for a specific street address in San Marcos? Use the free ZIP+4 Lookup tool, or find any ZIP code from a street address with the ZIP Code by Address tool.
Frequently Asked Questions
What city is ZIP code 92078?
ZIP code 92078 is for San Marcos, California.
What county is ZIP code 92078 in?
ZIP code 92078 is in San Diego, California.
What state is ZIP code 92078 in?
ZIP code 92078 is in California (CA).
How do I find the ZIP+4 for an address in 92078?
Use the free ZIP+4 Lookup tool with the full street address to get the complete 9-digit ZIP code.
What are the nearby ZIP codes to 92078?
Nearby ZIP codes include 91901 (Alpine), 91902 (Bonita), 91903 (Alpine), 91905 (Boulevard), 91906 (Campo).
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