Arroyo Grande, CA · standard
ZIP Code 93420
San Luis Obispo County, California - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 28,413
- 59/sq mi
- $110,553
- Median income
- $917,900
- Median home value
- 44.1%
- Bachelor's or higher
The verdict
Arroyo Grande pairs an upper-quartile household income with top-decile home values, in a rural, homeowner-dominated area.
- Top 13%
- household income, US ZIPs
- Top 3%
- home value, US ZIPs
- 59
- people per sq mi
- 66%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 93420 against every reporting US ZIP.
ZIP code 93420 is classified by USPS as a standard delivery area and covers roughly 484.9 square miles in Arroyo Grande, San Luis Obispo County, California. The area is home to 28,413 residents, producing a population density of 59 people per square mile, and falls within the Los Angeles time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 93420 against California and the nation.
On the economic side, the median household income for ZIP 93420 sits at $110,553 (9% above the California average), while per-capita income is $53,468. The poverty rate stands at 6.4% and the unemployment rate at 4.5%. On housing, the median home value is $917,900 (19% above the state average) with median rent at $2,187 per month, and 66.4% of occupied units are owner-occupied, a direct signal of whether 93420 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 44.1% of adults hold a bachelor's degree or higher, the median age is 48.2, and the average commute is 23 minutes. We also surface 1 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing San Luis Obispo County, so you can benchmark 93420 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 93420
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 93420.
- Health care and social assistance
Health care and social assistance
136 establishments
- Construction
Construction
134 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
105 establishments
- Retail trade
Retail trade
92 establishments
- Other services (except public administration)
Other services (except public administration)
78 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 93420, Arroyo Grande, CA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
28,413
Population
484.9
Area (sq mi)
59
People / sq mi
Los Angeles
Time Zone
standard
ZIP Type
Who lives in ZIP 93420?
48.2
Median Age
47.2%
Male
52.8%
Female
7.4%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$110,553
Median Household Income
+9% vs state
$53,468
Per Capita Income
6.4%
Poverty Rate
4.5%
Unemployment Rate
23.2 min
Mean Commute Time
How ZIP 93420 ranks nationally
Household income vs. every US ZIP code
Median household income — the full national distribution, with this ZIP marked
$110,553 Top 13% higher than 87% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
13,618
Total Housing Units
12,672
Occupied Units
946
Vacant Units
2.44
Avg Household Size
Occupancy Type
$917,900
Median Home Value
+19% vs state
$2,187
Median Rent
1983
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+1.8%
YoY Change (2024)
313
HPI Index (2000 = 100)
+213%
Total Change Since 2000
Home values in ZIP 93420 have increased 1.8% over the past year (2024). Since 2000, this ZIP has seen +213% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +0.5% | 226 |
| 2021 | +9.3% | 247 |
| 2022 | +15.1% | 285 |
| 2023 | +8.1% | 308 |
| 2024 | +1.8% | 313 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 888 business establishments in ZIP 93420, employing approximately 7,127 people with a combined annual payroll of $379,386,000.
888
Businesses
7,127
Employees
$379.4M
Annual Payroll
16
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Health care and social assistance | 136 | 15.3% |
| Construction | 134 | 15.1% |
| Professional, scientific, and technical services | 105 | 11.8% |
| Retail trade | 92 | 10.4% |
| Other services (except public administration) | 78 | 8.8% |
| Accommodation and food services | 77 | 8.7% |
| Real estate and rental and leasing | 60 | 6.8% |
| Administrative and support and waste management and remediation services | 52 | 5.9% |
| Finance and insurance | 46 | 5.2% |
| Wholesale trade | 27 | 3.0% |
| Manufacturing | 20 | 2.3% |
| Arts, entertainment, and recreation | 16 | 1.8% |
| Information | 14 | 1.6% |
| Educational services | 14 | 1.6% |
| Transportation and warehousing | 8 | 0.9% |
| Agriculture, forestry, fishing and hunting | 5 | 0.6% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 93420 vs 93444 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 93444 | Nipomo, CA | 19,244 | 9.1 mi |
More ZIP Codes in San Luis Obispo County
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Frequently Asked Questions
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ZIP Code Research Guides
Official Data Resources for Arroyo Grande, CA
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.