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South Bay San Diego County Homes
South Bay is the southern part of San Diego County between the City of San Diego and the Mexico border, including Chula Vista, National City, Imperial Beach and the San Diego communities of Otay Mesa and San Ysidro.
Cities, Communities and ZIP Codes
| City or community | ZIP codes |
|---|---|
| Chula Vista | 91910, 91911, 91913, 91914, 91915 |
| National City | 91950 |
| Imperial Beach | 91932 |
| Bonita (unincorporated) | 91902 |
| Otay Mesa (City of San Diego) | 92154 |
| San Ysidro (City of San Diego) | 92173 |
Working definition grouped by city and ZIP code. Not an official MLS area or government boundary; some ZIP codes cross community lines.
Homes in South Bay
Housing includes older single-family neighborhoods west of Interstate 805 and large master-planned communities in eastern Chula Vista, such as Eastlake and Otay Ranch, with single-family homes, townhomes and condominiums.
Neighborhood Guides
- Otay Ranch: Otay Ranch is a large master-planned community in eastern Chula Vista, made up of separate villages, each with its own name, homes and amenities.
Guides coming soon: Eastlake.
Frequently Asked Questions
What cities are in South Bay San Diego County?
On these pages, South Bay includes Chula Vista; National City; Imperial Beach; Bonita (unincorporated); Otay Mesa (City of San Diego); San Ysidro (City of San Diego). This is a working guide, not an official MLS or government boundary.
What ZIP codes are in South Bay?
This guide groups these ZIP codes in South Bay: 91902, 91910, 91911, 91913, 91914, 91915, 91932, 91950, 92154, 92173. Some ZIP codes cross community lines.
What kinds of homes are in South Bay?
Housing includes older single-family neighborhoods west of Interstate 805 and large master-planned communities in eastern Chula Vista, such as Eastlake and Otay Ranch, with single-family homes, townhomes and condominiums.
Can I see South Bay homes for sale here?
Yes. The live MLS gallery on this page shows homes for sale in this region. For help with a specific home, call or text 805-953-6800.
Talk to the Broker
G. Robert Arnold, Broker
Premier Advantage Real Estate
CA DRE 00569840
Call or Text 805-953-6800
[email protected]
Call or Text 805-953-6800Get Your Complimentary Home Value
Buying? See Buyers Rebate Up To 1.5%.
Sources:
Information reviewed November 9, 2026. Boundaries, HOA details and school assignments change; verify with the HOA, the city or county and the school district before relying on them. Listings shown above are provided by Web4Realty from the MLS feed and change frequently; confirm availability and details before relying on them.