US United States Major Regions Postal Code Details
🏛️ San Diego · California
91903Alpine
Alpine san diego california 91903 United States
92147ASW Training Ctr
ASW Training Ctr san diego california 92147 United States
91902Bonita
Bonita san diego california 91902 United States
92003Bonsall
Bonsall san diego california 92003 United States
92004Borrego Springs
Borrego Springs san diego california 92004 United States
92021Bostonia
Bostonia san diego california 92021 United States
91905Boulevard
Boulevard san diego california 91905 United States
92096Ca State Univ San Marcos
Ca State Univ San Marcos san diego california 92096 United States
92054Camp Pendleton
Camp Pendleton san diego california 92054 United States
91906Campo
Campo san diego california 91906 United States
92007Cardiff
Cardiff san diego california 92007 United States
92007Cardiff By The Sea
Cardiff By The Sea san diego california 92007 United States
92011Carlsbad
Carlsbad san diego california 92011 United States
91914Chula Vista
Chula Vista san diego california 91914 United States
92055Cmp Pendleton
Cmp Pendleton san diego california 92055 United States
92178Coronado
Coronado san diego california 92178 United States
92021Crest
Crest san diego california 92021 United States
92014Del Mar
Del Mar san diego california 92014 United States
91916Descanso
Descanso san diego california 91916 United States
91917Dulzura
Dulzura san diego california 91917 United States
92022El Cajon
El Cajon san diego california 92022 United States
92029Elfin Forest
Elfin Forest san diego california 92029 United States
92023Encinitas
Encinitas san diego california 92023 United States
92027Escondido
Escondido san diego california 92027 United States
92088Fallbrook
Fallbrook san diego california 92088 United States
91931Guatay
Guatay san diego california 91931 United States
92026Hidden Meadows
Hidden Meadows san diego california 92026 United States
91933Imperial Beach
Imperial Beach san diego california 91933 United States
91934Jacumba
Jacumba san diego california 91934 United States
91935Jamul
Jamul san diego california 91935 United States
92036Julian
Julian san diego california 92036 United States
92009La Costa
La Costa san diego california 92009 United States
92093La Jolla
La Jolla san diego california 92093 United States
91941La Mesa
La Mesa san diego california 91941 United States
92069Lake San Marcos
Lake San Marcos san diego california 92069 United States
92040Lakeside
Lakeside san diego california 92040 United States
91945Lemon Grove
Lemon Grove san diego california 91945 United States
92024Leucadia
Leucadia san diego california 92024 United States
91950Lincoln Acres
Lincoln Acres san diego california 91950 United States
92055Marine Corp Base
Marine Corp Base san diego california 92055 United States
92140MCRD San Diego
MCRD San Diego san diego california 92140 United States
91948Mount Laguna
Mount Laguna san diego california 91948 United States
92145Nas Miramar
Nas Miramar san diego california 92145 United States
92135Nas N Island
Nas N Island san diego california 92135 United States
92135Nas North Island
Nas North Island san diego california 92135 United States
91951National City
National City san diego california 91951 United States
92155Naval Amphibious Base
Naval Amphibious Base san diego california 92155 United States
92134Naval Hospital
Naval Hospital san diego california 92134 United States
92136Naval Station 32nd St
Naval Station 32nd St san diego california 92136 United States
92132Naval Supply Ctr
Naval Supply Ctr san diego california 92132 United States
92153Nestor
Nestor san diego california 92153 United States
92107Ocean Beach
Ocean Beach san diego california 92107 United States
92049Oceanside
Oceanside san diego california 92049 United States
92024Olivenhain
Olivenhain san diego california 92024 United States
92109Pacific Beach
Pacific Beach san diego california 92109 United States
92061Pala
Pala san diego california 92061 United States
92060Palomar Mountain
Palomar Mountain san diego california 92060 United States
92061Pauma Valley
Pauma Valley san diego california 92061 United States
91962Pine Valley
Pine Valley san diego california 91962 United States
91963Potrero
Potrero san diego california 91963 United States
92074Poway
Poway san diego california 92074 United States
92028Rainbow
Rainbow san diego california 92028 United States
92065Ramona
Ramona san diego california 92065 United States
92066Ranchita
Ranchita san diego california 92066 United States
92128Rancho Bernardo
Rancho Bernardo san diego california 92128 United States
92011Rancho La Costa
Rancho La Costa san diego california 92011 United States
92067Rancho Santa Fe
Rancho Santa Fe san diego california 92067 United States
92136San Diego
San Diego san diego california 92136 United States
92158San Diego County Jail
San Diego County Jail san diego california 92158 United States
92182San Diego State University
San Diego State University san diego california 92182 United States
92187San Diego Water Utilities
San Diego Water Utilities san diego california 92187 United States
92068San Luis Rey
San Luis Rey san diego california 92068 United States
92069San Marcos
San Marcos san diego california 92069 United States
92143San Ysidro
San Ysidro san diego california 92143 United States
92070Santa Ysabel
Santa Ysabel san diego california 92070 United States
92072Santee
Santee san diego california 92072 United States
92075Solana Beach
Solana Beach san diego california 92075 United States
92152Spawars System Center
Spawars System Center san diego california 92152 United States
91978Spring Valley
Spring Valley san diego california 91978 United States
91987Tecate
Tecate san diego california 91987 United States
91987Tk Manufacturing
Tk Manufacturing san diego california 91987 United States
92092Uc San Diego
Uc San Diego san diego california 92092 United States
92093Uc Santa Barbara
Uc Santa Barbara san diego california 92093 United States
92161Va Hospital
Va Hospital san diego california 92161 United States
92082Valley Center
Valley Center san diego california 92082 United States
92084Vista
Vista san diego california 92084 United States
92066Warner Springs
Warner Springs san diego california 92066 United States
📋 United States Address and Delivery Guidance
📮
Use a Complete Delivery Address:
Include the recipient name, building or street address, locality, region where applicable, postal code when the destination uses one, and the destination country or territory.
🌍
Follow Local Address Conventions:
Use the language, character set and address order requested by the recipient, official postal operator or carrier. Do not assume every destination uses the same postal-code format.
✅
Verify Before Dispatch:
Confirm the postal code, service coverage and any customs or carrier requirements with the recipient and the relevant official postal operator before shipping.
💡
Delivery Information Is Context-Specific:
Postal codes help routing only in territories that use them. Accurate recipient details remain essential for delivery in every destination.
Postal information, sources and verification
Use this page as a routing reference and confirm the complete address, postal code format and delivery restrictions with the relevant official postal operator or carrier before dispatch.
Editorial and service accountability
This postal-code reference is maintained by the 56ok.com logistics-content team for international shipping preparation. It is reviewed against publicly available postal-operator information; it is not an official postal authority and does not replace carrier or customs instructions.
This reference is maintained as postal and carrier information changes. Need a correction? Contact our team.
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📮United States Postal FAQ and delivery guidance
📮 What is the format of a US ZIP code?
Standard format is 5 digits (e.g., 10001). Extended format is ZIP+4 (9 digits like 10001-1234) with a hyphen.
🔍 How to find the ZIP code for an address?
Use the USPS ZIP Code Lookup tool by entering the full address on the official USPS website.
⚠️ What happens if I use a wrong ZIP code?
Mail may be delayed, returned, or lost. For important documents, use USPS tracking and verify the ZIP code.
🔄 Do ZIP codes ever change?
Yes, USPS may update ZIP codes due to regional adjustments. Always confirm your ZIP code after an address change.
📦 Is a ZIP code required for international mail to the US?
Absolutely. Always include the US ZIP code at the end of the address (e.g., New York, NY 10001 USA).
