San Marcos is the actual or alternate city name associated with 4 ZIP Codes by the US Postal Service.
Select a particular San Marcos ZIP Code to view a more detailed map and the number of Business, Residential, and PO Box addresses for that ZIP Code. The Residential addresses are segmented by both Single and Multi-family addessses.
Each individual San Marcos ZIP Code profile also includes Demographic Data including Population, Housing, Income, Households, and Growth Rates.
|San Marcos, CA - Standard ZIP Codes|
|San Marcos, CA - PO Box ZIP Codes (NO DEMOGRAPHIC DATA)|
|San Marcos, CA - Unique - Single Entity ZIP Codes (NO DEMOGRAPHIC DATA)|