US United States Major Regions Postal Code Details
🏛️ San Luis Obispo · California
93446Adelaide
Adelaide san luis obispo california 93446 United States
93421Arroyo Grande
Arroyo Grande san luis obispo california 93421 United States
93422Atascadero
Atascadero san luis obispo california 93422 United States
93424Avila Beach
Avila Beach san luis obispo california 93424 United States
93402Baywood Park
Baywood Park san luis obispo california 93402 United States
93407Cal Poly Slo
Cal Poly Slo san luis obispo california 93407 United States
93410Cal Poly Student Dorms
Cal Poly Student Dorms san luis obispo california 93410 United States
93407Cal Poly University
Cal Poly University san luis obispo california 93407 United States
93409California Mens Colony Slo
California Mens Colony Slo san luis obispo california 93409 United States
93428Cambria
Cambria san luis obispo california 93428 United States
93451Camp Roberts
Camp Roberts san luis obispo california 93451 United States
93430Cayucos
Cayucos san luis obispo california 93430 United States
93461Cholame
Cholame san luis obispo california 93461 United States
93432Creston
Creston san luis obispo california 93432 United States
93433Grover Beach
Grover Beach san luis obispo california 93433 United States
93421Halcyon
Halcyon san luis obispo california 93421 United States
93435Harmony
Harmony san luis obispo california 93435 United States
93446Heritage Ranch
Heritage Ranch san luis obispo california 93446 United States
93446Lake Nacimiento
Lake Nacimiento san luis obispo california 93446 United States
93412Los Osos
Los Osos san luis obispo california 93412 United States
93442Morro Bay
Morro Bay san luis obispo california 93442 United States
93446Nacimiento Lake
Nacimiento Lake san luis obispo california 93446 United States
93444Nipomo
Nipomo san luis obispo california 93444 United States
93475Oceano
Oceano san luis obispo california 93475 United States
93451Parkfield
Parkfield san luis obispo california 93451 United States
93446Paso Robles
Paso Robles san luis obispo california 93446 United States
93449Pismo Beach
Pismo Beach san luis obispo california 93449 United States
93453Pozo
Pozo san luis obispo california 93453 United States
93452Ragged Point
Ragged Point san luis obispo california 93452 United States
93408San Luis Obispo
San Luis Obispo san luis obispo california 93408 United States
93451San Miguel
San Miguel san luis obispo california 93451 United States
93452San Simeon
San Simeon san luis obispo california 93452 United States
93453Santa Margarita
Santa Margarita san luis obispo california 93453 United States
93461Shandon
Shandon san luis obispo california 93461 United States
93449Shell Beach
Shell Beach san luis obispo california 93449 United States
93408Slo County Govt Ctr
Slo County Govt Ctr san luis obispo california 93408 United States
93409Sn Luis Obisp
Sn Luis Obisp san luis obispo california 93409 United States
93465Templeton
Templeton san luis obispo california 93465 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.
Privacy, terms and disclaimer
Your search terms are handled under our Privacy Policy. Review our Terms of Service and disclaimer before relying on any logistics or delivery information.
📮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).
