Arroyo Grande is a city in San Luis Obispo County, California, home to about 18,372 people across 5.9 square miles. Its ZIP code is 93420.
Homes sold for a median of $572 per square foot in the three months ending August 2026, a seller’s market.
Mostly Arroyo Grande; also Callender and Oceano
Each card is that ZIP code’s whole market, including any part outside Arroyo Grande. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Arroyo Grande’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Fresno Yosemite International Airport (FAT)119 miles away |
|---|---|
| Closer regional airport | San Luis County Regional Airport (SBP)11 miles away |
| Nearest city of 250,000+ | Bakersfield, CA82 miles away |
| Nearest city of 1 million+ | Los Angeles, CA141 miles away |
Straight-line distances from the center of Arroyo Grande; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Arroyo Grande had 18,441 residents in the 2020 census, up 16% since 2000.
It’s the 372nd largest of 1,563 towns in California by population.
San Luis Obispo County grew from 16,637 residents in 1900 to 282,424 in 2020.
San Luis Obispo County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 80°F in summer, and winter lows average 40°F. About 18 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, San Luis Obispo Ap, CA weather station (11 miles away).
98,720 jobs at 8,962 businesses in San Luis Obispo County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
311 doctors and other health care providers list an office in Arroyo Grande.
Nearest hospitals
Providers with an office here
| Primary care doctors | 21 |
|---|---|
| Specialist doctors | 46 |
| Dentists | 24 |
| Nurse practitioners and physician assistants | 27 |
| Mental health providers | 125 |
| Physical and occupational therapists | 46 |
| Optometrists | 4 |
| Chiropractors | 18 |
| Pharmacies | 9 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Established in 1862.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Lucia Mar Unified. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Branch ElementaryArroyo Grande | K–6 | 261 | Public | 3.9 mi |
| Harloe ElementaryArroyo Grande | K–6 | 619 | Public | 8.1 mi |
| Ocean View ElementaryArroyo Grande | K–6 | 547 | Public | 8.1 mi |
| Pacific View AcademyArroyo Grande | K–12 | 114 | Alternative Education | 10.1 mi |
| Mesa MiddleArroyo Grande | 7–8 | 474 | Public | 9.1 mi |
| Paulding MiddleArroyo Grande | 7–8 | 544 | Public | 6.6 mi |
| Arroyo Grande HighArroyo Grande | 9–12 | 2,012 | Public | 7.4 mi |
| Lopez Continuation HighArroyo Grande | 10–12 | 96 | Alternative Education | 10.1 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Arroyo Grande Montessori SchoolArroyo Grande | Pre-K–K | 10 | Nonsectarian | 7.6 mi |
| St Patricks Catholic SchoolArroyo Grande | Pre-K–8 | 247 | Roman Catholic | 7.7 mi |
| Valley View Adventist Junior AcademyArroyo Grande | K–8 | 55 | Seventh-day Adventist | 7.3 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Callender, Oceano and Los Berros.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.