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
National ZIP placement
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.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 93420 (Arroyo Grande, CA) rose +1.8% from 2023 to 2024. The all-transactions index moved from 307.6 in 2023 to 313.1 in 2024 (2000 = 100).
ZIP code 93420 is a densely settled ZIP (a standard USPS delivery area) in Arroyo Grande, San Luis Obispo County, California, with 28,413 residents across 484.9 square miles, a density of 59 people per square mile, in the Los Angeles time zone.
ZIP 93420 skews affluent, with a median household income of $110,553 (9% above the average California ZIP), while per-capita income is $53,468. The poverty rate is 6.4%, with unemployment at 4.5%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $917,900 (19% above the average California ZIP), while 66.4% of occupied homes are owner-occupied and median rent is $2,187.
A solid share of residents have a four-year degree: 44.1% of adults hold a bachelor's degree or higher, the median age is 48.2, and the average commute is 23 minutes. The page also surfaces 1 ZIP codes within roughly 10 miles and 6 more in San Luis Obispo County, so 93420 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 93420
Top 5 sectors by establishment count in Arroyo Grande, CA
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 + FHFA HPI ACS demographics and median rent, ZBP business establishments, 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; 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 ZIP avg
$53,468
Per Capita Income
6.4%
Poverty Rate
4.5%
Unemployment Rate
23.2 min
Mean Commute Time
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?
Housing stock: occupied vs vacant
13,618housing units
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 ZIP avg
$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 |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 93420, both outside CA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (28,413 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.