ZIP Code 93420, California
ZIP Code 93420 profile, demographic data, and geographic information.
ZCTA5 93420 is a 5-digit ZIP Code area located in San Luis Obispo County, California. As of official census estimates, it has a reported population of 31,345. The land area covers 197.43 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population | 31,345 | ±1,337 | 2020-2024 / Census ACS 5-Year 2024 |
| Median Age | 48.2 yrs | ±3 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 12,672 | ±662 | 2020-2024 / Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).
Housing & Real Estate Profile
| Housing Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Total Housing Units | 13,618 | ±725 |
| Occupied Housing Units | 12,672 | ±662 |
| Vacant Housing Units | 946 | ±330 |
| Median Home Value | $917,900 | ±$37,163 |
| Median Gross Rent | $2,187 | ±$140 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $110,553 | ±$4,535 |
| Per Capita Income | $53,468 | ±$2,884 |
| Poverty Rate | 6.4% | ±2.4% |
| Population Below Poverty Level | 1,983 | ±743 |
| Unemployment Rate | 4.5% | ±1.3% |
| Civilian Labor Force, Employed | 13,961 | ±838 |
| Broadband Internet Rate | 91.8% | ±2.3% |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 281,843 (2024)
ID: 161113
|
County | Official County Government |
Contact: CHAIRPERSON
1055 MONTEREY ST, STE D430, SAN LUIS OBISPO CA 93408-1003
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | KG-06 | Santa Maria, CA | |
| Regular School Nearby | 09-12 | Arroyo Grande, CA | |
| Regular School Nearby | KG-06 | San Luis Obispo, CA | |
| Regular School Nearby | KG-06 | San Luis Obispo, CA | |
| Regular School Nearby | KG-06 | Arroyo Grande, CA | |
| Regular School Nearby | KG-06 | Santa Maria, CA | |
| Regular School Nearby | KG-06 | San Luis Obispo, CA | |
| Regular School Nearby | 09-12 | Nipomo, CA | |
| Regular School Nearby | KG-06 | Nipomo, CA | |
| Regular School Nearby | 07-08 | Santa Maria, CA |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 10 civic institutions across 2 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
Central California School of Continuing Education
|
College | 11.2 mi away | 3195 McMillan Ste F, San Luis Obispo, CA, 93401 |
8055439123
|
|
SOUTH COUNTY LIBRARY
|
Library | 7.2 mi away | 800 W. BRANCH ST., ARROYO GRANDE, CA, 93420 |
(805) 473-7161
|
|
Laurus College
|
College | 12.4 mi away | 81 Higuera St Ste 110, San Luis Obispo, CA, 93401 |
8052671690
|
|
OCEANO
|
Library | 9.0 mi away | 1551 17TH STREET, OCEANO, CA, 93445 |
(805) 474-7478
|
|
California Polytechnic State University-San Luis Obispo
|
College | 13.1 mi away | 1 Grand Ave., San Luis Obispo, CA, 93407 |
8057561111
|
|
NIPOMO LIBRARY
|
Library | 10.3 mi away | 918 W. TEFFT, NIPOMO, CA, 93444 |
(805) 929-3994
|
|
CET-Santa Maria
|
College Vocational | 16.2 mi away | 509 W Morrison Ave, Santa Maria, CA, 93458 |
4082877924
|
|
SHELL BEACH LIBRARY
|
Library | 10.8 mi away | 230 LEEWARD AVENUE, SHELL BEACH, CA, 93449 |
(805) 773-2263
|
|
Allan Hancock College
|
College | 16.4 mi away | 800 South College Drive, Santa Maria, CA, 93454-6399 |
8059226966
|
|
SAN LUIS OBISPO COUNTY LAW LIBRARY
|
Library | 12.5 mi away | 1050 MONTEREY ST., RM 125, SAN LUIS OBISPO, CA, 93408 |
(805) 781-5855
|
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.
Climate & Weather Observations
NOAA Monthly Climate Normals
Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at SAN LUIS OBISPO AP, CA US, located 10.0 miles from ZCTA5 93420. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 65.0° | 40.6° | 52.8° | 3.86" | — |
| February | 65.1° | 42.4° | 53.8° | 3.54" | — |
| March | 66.7° | 44.5° | 55.6° | 3.17" | — |
| April | 69.1° | 45.6° | 57.4° | 1.05" | — |
| May | 72.0° | 47.8° | 59.9° | 0.47" | — |
| June | 75.2° | 51.1° | 63.2° | 0.10" | — |
| July | 78.0° | 54.3° | 66.1° | 0.08" | — |
| August | 79.3° | 54.9° | 67.1° | 0.01" | — |
| September | 79.5° | 53.4° | 66.4° | 0.04" | — |
| October | 77.2° | 49.7° | 63.5° | 0.92" | — |
| November | 71.1° | 44.7° | 57.9° | 1.43" | — |
| December | 64.9° | 40.2° | 52.6° | 3.27" | — |
Source: NOAA U.S. Climate Normals (1991–2020).
Local Weather Forecast
Weather forecast data is currently unavailable in the local cache.
Nearby Cities & Communities
Listing adjacent communities by spatial proximity (miles)
Proximity discovery
| Community Name | Classification | Distance | Population |
|---|---|---|---|
| Arroyo Grande city | City | 6.9 mi | — |
| Edna CDP | CDP | 7.5 mi | — |
| Los Berros CDP | CDP | 7.5 mi | — |
| Grover Beach city | City | 8.7 mi | — |
| Los Ranchos CDP | CDP | 8.7 mi | — |
| Oceano CDP | CDP | 8.9 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 93420. • Official Source Dataset →
- Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
- Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
- Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.