ZIP code
93420
Arroyo Grande, CA
93420 covers Arroyo Grande in San Luis Obispo County, with 32,016 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 93420. Methodology
ZIP code map of 93420

About ZIP code 93420
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 93420. Not ACS. Methodology
People in 93420
Race
- White23,143
- Black or African American239
- American Indian or Alaska Native285
- Asian1,042
- Native Hawaiian and Pacific Islander19
- Other race1,745
- Two or more races4,067
Hispanic or Latino (any race): 5,774
Age
- Under 102,869
- 10 to 193,413
- 20 to 292,834
- 30 to 393,254
- 40 to 493,363
- 50 to 593,907
- 60 to 695,136
- 70 to 793,816
- 80 and older1,948
Income and housing in 93420
Education
- High school graduate95.0%
- Bachelor's degree43.7%
- Graduate degree15.4%
Places covering 93420
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Arroyo Grande60.4%
- Callender4.2%
- Los Berros2.0%
- Oceano0.9%
- Nipomo0.4%
- Woodlands0.1%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- San Luis Obispo County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
32.1% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 93420
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 24,538 | |
| 2006 | 23,897 | |
| 2007 | 25,441 | |
| 2008 | 24,398 | |
| 2009 | 24,167 | |
| 2010 | 24,381 | |
| 2011 | 29,480 | 24,955 |
| 2012 | 29,710 | 25,210 |
| 2013 | 30,401 | 25,610 |
| 2014 | 30,076 | 25,790 |
| 2015 | 30,444 | 25,750 |
| 2016 | 30,022 | 25,780 |
| 2017 | 29,940 | 26,030 |
| 2018 | 30,136 | 26,080 |
| 2019 | 30,740 | 26,270 |
| 2020 | 29,915 | 26,520 |
| 2021 | 31,864 | 26,290 |
| 2022 | 32,126 | 26,050 |
| 2023 | 32,016 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 93420
12 nearest ZIP centroids (any distance)
- 93401San Luis Obispo8.9 miPop 29,995 · Income $95,386
- 93433Grover Beach8.9 miPop 12,684 · Income $82,534
- 93444Nipomo9.8 miPop 21,495 · Income $105,655
- 93449Pismo Beach10.0 miPop 8,024 · Income $112,913
- 93445Oceano12.2 miPop 6,812 · Income $75,012
- 93410San Luis Obispo13.5 miPop 7,038 · Income —
- 93407San Luis Obispo14.1 miPop 348 · Income —
- 93453Santa Margarita15.2 miPop 2,003 · Income $70,288
- 93458Santa Maria15.4 miPop 59,126 · Income $73,518
- 93409San Luis Obispo16.1 miPop 2,687 · Income —
- 93405San Luis Obispo16.9 miPop 23,856 · Income $52,481
- 93408San Luis Obispo16.9 miPop 8 · Income —
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 93420, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 93420 FAQ
- What city is ZIP code 93420 in?
- 93420 is in Arroyo Grande, CA.
- What county is 93420 in?
- 93420 is in San Luis Obispo County.
- What is the median household income in 93420?
- The median household income in 93420 is $106,718.
- Which ZIP codes are near 93420?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 93420.