San Diego County ZIP Codes (91901 – 92199) – California

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San Diego County is located in the southwestern part of the state of California, United States. ZIP codes in San Diego County range from 91901 to 92199 and are administered by the United States Postal Service (USPS) to ensure accurate mail delivery, logistics, and local administration.

Key Information About San Diego County ZIP Codes

ItemDetails
CountySan Diego County
StateCalifornia
ZIP Code Range91901 – 92199
County SeatNone (County Government serves region)
Largest CitySan Diego
CountryUnited States
ContinentNorth America
Postal AuthorityUnited States Postal Service (USPS)

ZIP Codes of San Diego County by City & Community

For more details on ZIP codes in San Diego County, see the tables of cities, towns, CDPs, communities, rural areas, and notable places below.

Alpine Area (91901, 92019)

Place / LocationZIP CodeState
Alpine91901California
Alpine East91901California
Alpine West92019California

Bonita Area (91902, 91910)

Place / LocationZIP CodeState
Bonita91902California
Bonita Heights91902California
East Bonita91910California
Bonita West91910California

Bonsall Area (92003, 92014, 92058)

Place / LocationZIP CodeState
Bonsall92003California
Bonsall East92003California
Rancho Del Oro (Carlsbad)92014California
Bonsall Rural92058California

Borrego Springs Area (92004)

Place / LocationZIP CodeState
Borrego Springs92004California
Borrego Desert Area92004California

Boulevard Area (91905)

Place / LocationZIP CodeState
Boulevard91905California
Mountain Empire Area91905California

Campo Area (91906, 91913)

Place / LocationZIP CodeState
Campo91906California
Campo Indian Reservation91913California
East Campo91906California

Campo / Jacumba Area (91934, 91935)

Place / LocationZIP CodeState
Jacumba Hot Springs91934California
Jamul (partial)91935California

Chula Vista Area (91910 – 91915, 91921)

Place / LocationZIP CodeState
Chula Vista91910California
Chula Vista Downtown91911California
Otay Ranch91911California
Chula Vista East91913California
Chula Vista South91915California
Eastlake91921California

Coronado Area (92118, 92135, 92155)

Place / LocationZIP CodeState
Coronado92118California
Coronado Cays92135California
Coronado North92155California

Del Mar Area (92014)

Place / LocationZIP CodeState
Del Mar92014California
Del Mar Heights92014California
Del Mar Center92014California

Descanso & Mountain Empire Area (91916, 91962, 91963, 91980)

Place / LocationZIP CodeState
Descanso91916California
Pine Valley91962California
Potrero91963California
Tecate (CA side)91980California

Dulzura Area (91917, 91977)

Place / LocationZIP CodeState
Dulzura91917California
Spring Valley91977California

El Cajon Area (92019, 92020, 92021)

Place / LocationZIP CodeState
El Cajon92019California
El Cajon East92020California
El Cajon South92021California

Encinitas & San Dieguito Area (92007, 92024)

Place / LocationZIP CodeState
Encinitas92007California
Encinitas South92024California
Leucadia92024California
Cardiff-by-the-Sea92007California

Escondido Area (92025 – 92029)

Place / LocationZIP CodeState
Escondido92025California
East Escondido92026California
North Escondido92027California
South Escondido92029California

Fallbrook Area (92028)

Place / LocationZIP CodeState
Fallbrook92028California
Fallbrook East92028California
Fallbrook West92028California

Imperial Beach Area (91932, 91935)

Place / LocationZIP CodeState
Imperial Beach91932California
South Bay Corridor91932California
Imperial Beach North91935California

La Mesa Area (91941, 91942, 91973)

Place / LocationZIP CodeState
La Mesa91941California
La Mesa East91942California
La Mesa West91973California

Lemon Grove Area (91945)

Place / LocationZIP CodeState
Lemon Grove91945California
Lemon Grove Central91945California

National City Area (91950)

Place / LocationZIP CodeState
National City91950California
National City South91950California

Oceanside Area (92054 – 92058)

Place / LocationZIP CodeState
Oceanside92054California
Oceanside North92056California
Camp Pendleton North92055California
Camp Pendleton South92058California

Poway Area (92064)

Place / LocationZIP CodeState
Poway92064California
Poway East92064California
Poway South92064California

Ramona Area (92065)

Place / LocationZIP CodeState
Ramona92065California
Ramona Rural Areas92065California

Rancho Santa Fe Area (92067, 92091)

Place / LocationZIP CodeState
Rancho Santa Fe92067California
Rancho Santa Fe North92091California

San Diego City & Neighborhoods (92101 – 92199)

Place / LocationZIP CodeState
San Diego Downtown92101California
San Diego Mid‑City92104California
La Jolla92037California
Pacific Beach92109California
Mission Bay92109California
Ocean Beach92107California
Barrio Logan92113California
North Park92104California
Hillcrest92103California
Point Loma92106California
University City92122California
San Carlos92119California
Clairemont92117California
College Area92115California
Tierrasanta92124California

Other San Diego County Communities & CDPs

Place / LocationZIP CodeState
Bonsall Rural92003California
Guatay91931California
Mountain Empire (general area)91905California
San Pasqual Valley92093California
Pauma Valley92061California
Pala92059California
Valley Center92082California
Julian92036California
Mount Laguna91948California

About San Diego County ZIP Codes

San Diego County includes diverse communities — from dense urban districts in San Diego City to coastal towns like Del Mar and Coronado, suburban cities like Carlsbad and Chula Vista, inland valleys, mountain communities, and rural border areas near Mexico. Each ZIP code corresponds to cities, neighborhoods, CDPs, and rural zones, helping the USPS deliver mail accurately and supporting emergency services, logistics, and local administration.