County ProfileCA
San Luis Obispo County
Population: 282,424 · 34 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
282,424
People
Median age
40.4
Housing
Total households
109,503
Income
Median household income
$97,446
Housing
Total housing units
125,669
Employment
Employment rate
54.7%
Education
Bachelor’s degree or higher
39.8%
Healthcare
Insured population
94.3%
County details
Local time 00:22:05(PT)| Name | San Luis Obispo |
|---|---|
| Total ZIP codes | 34total |
| ZIP codes (by type) | 21 Standard11 PO Box2 Unique |
| Area code | 805, 820 |
| Timezone | Pacific Time (PT) |
| Coordinates | 35.3881891, -120.4488974 |
| Land area | 3,300.8 sq miles(8,549.1 km²) |
Map of San Luis Obispo county, California with ZIP codes
Cities and Communities in San Luis Obispo County
Compare the largest cities in San Luis Obispo County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| San Luis Obispo | 47,063 | $73,685 | 8ZIPs |
| Paso Robles | 45,979 | — | 2ZIPs |
| Atascadero | 29,773 | $91,429 | 2ZIPs |
| Arroyo Grande | 18,441 | $102,553 | 2ZIPs |
| Nipomo | 18,176 | $110,022 | 1ZIPs |
| Los Osos | 14,465 | $108,932 | 2ZIPs |
| Grover Beach | 12,701 | $86,458 | 2ZIPs |
| Morro Bay | 10,757 | $95,843 | 2ZIPs |
| Templeton | 8,386 | $117,063 | 1ZIPs |
| Pismo Beach | 8,072 | $118,072 | 2ZIPs |
| Oceano | 7,183 | $71,598 | 2ZIPs |
| Cambria | 5,678 | $99,147 | 1ZIPs |
| San Miguel | 3,591 | $250,001 | 1ZIPs |
| Cayucos | 2,505 | $87,235 | 1ZIPs |
| Avila Beach | 1,576 | $218,259 | 1ZIPs |
| Santa Margarita | 1,291 | — | 1ZIPs |
| Shandon | 1,168 | $107,273 | 1ZIPs |
| San Simeon | 445 | $54,625 | 1ZIPs |
| Creston | 98 | — | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in San Luis Obispo County
Review the most populated postal areas across San Luis Obispo County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 93446 | Paso Robles | $97,943 | 45,979 |
| 93422 | Atascadero | $91,780 | 33,041 |
| 93420 | Arroyo Grande | $110,553 | 30,540 |
| 93401 | San Luis Obispo | $96,824 | 29,877 |
| 93405 | San Luis Obispo | $60,399 | 23,331 |
| 93444 | Nipomo | $110,867 | 22,293 |
| 93402 | Los Osos | $109,090 | 14,500 |
| 93433 | Grover Beach | $86,458 | 12,643 |
| 93442 | Morro Bay | $95,623 | 11,390 |
| 93465 | Templeton | $129,259 | 10,121 |
| 93449 | Pismo Beach | $118,072 | 8,096 |
| 93410 | San Luis Obispo | — | 7,929 |
| 93445 | Oceano | $72,261 | 7,040 |
| 93428 | Cambria | $99,762 | 5,951 |
| 93451 | San Miguel | $98,188 | 4,820 |
| 93409 | San Luis Obispo | — | 3,806 |
| 93453 | Santa Margarita | $78,288 | 3,045 |
| 93430 | Cayucos | $89,519 | 2,849 |
| 93461 | Shandon | $92,482 | 1,503 |
| 93424 | Avila Beach | — | 1,256 |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS