San Luis Obispo County, CA ZIP Codes & Directory
Complete postal guide for San Luis Obispo County, California. Featuring the official county seat of San Luis Obispo, largest municipality San Luis Obispo, and serving 18 incorporated municipal entities.
Municipalities Located in San Luis Obispo County
Incorporated Cities, Towns, and Villages
Arroyo Grande
cityZIPs: 93420
Atascadero
cityZIPs: 93422
Cambria
cityZIPs: 93428
Cayucos
cityZIPs: 93430
Creston
cityZIPs: 93432
Grover Beach
cityZIPs: 93433
Los Osos
cityZIPs: 93402
Morro Bay
cityZIPs: 93442
Nipomo
cityZIPs: 93444
Oceano
cityZIPs: 93445
Paso Robles
cityZIPs: 93446
Pismo Beach
cityZIPs: 93449
San Luis Obispo
cityZIPs: 93401, 93405 , +2 more
San Miguel
cityZIPs: 93451
San Simeon
cityZIPs: 93452
Santa Margarita
cityZIPs: 93453
Shandon
cityZIPs: 93461
Templeton
cityZIPs: 93465
Active USPS ZIP Codes in San Luis Obispo County
Standard delivery zones and geographic service boundaries
Frequently Asked Questions About San Luis Obispo County, CA
What is the county seat and largest city in San Luis Obispo County? ▾
The official county seat of San Luis Obispo County is San Luis Obispo, and its largest incorporated municipality by population is San Luis Obispo.
How many cities, towns, and villages are in San Luis Obispo County? ▾
San Luis Obispo County encompasses 18 incorporated municipal entities, including 18 cities, 0 towns, and 0 villages.
What is the total population and land area of San Luis Obispo County? ▾
According to official U.S. Census Bureau data, San Luis Obispo County has a population of approximately 282,424 residents and spans an area of 3,299 square miles.
How many ZIP codes operate in San Luis Obispo County? ▾
There are 21 active USPS ZIP codes serving addresses within San Luis Obispo County, California.