93420 ZIP Code — Arroyo Grande, CA
San Luis Obispo County, California
ZIP code 93420 is located in Arroyo Grande, California, within San Luis Obispo County. It covers approximately 197.43 square miles and serves a population of 32,126 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 805.
About ZIP code 93420
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $836,500. Owner-occupancy sits near the national average at 68%.
Median household income is $104,314. The poverty rate of 6% is below the national average. 43% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 22 minutes is near the national average.
Educational attainment is near the national average, with 41% of residents holding a bachelor's degree or higher.
32,126
population
197.43
sq mi land
Standard
ZIP type
Pacific (PT)
timezone
93420 ZIP code map
Cities in ZIP code 93420
Below are the cities the US Postal Service accepts for ZIP code 93420. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Arroyo Grande | Acceptable |
| Arroyo Grande | Preferred |
Nearby ZIP codes
93444 Nipomo (11.3 mi)
93445 Oceano (14.4 mi)
93433 Grover Beach (14.7 mi)
93453 Santa Margarita (15.5 mi)
93458 Santa Maria (15.8 mi)
93401 San Luis Obispo (15.9 mi)
93449 Pismo Beach (16.6 mi)
93454 Santa Maria (17.5 mi)
93410 San Luis Obispo (18.8 mi)
93408 San Luis Obispo (18.8 mi)
93409 San Luis Obispo (19.3 mi)
93407 San Luis Obispo (19.5 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 32,126 |
| Population density | 163 / sq mi |
| State FIPS | 06 |
| County FIPS | 079 |
| Geography | |
|---|---|
| Land area | 197.43 sq mi |
| Water area | 1.15 sq mi |
| Latitude | 35.1560 |
| Longitude | -120.3652 |
| Timezone | Pacific (PT) |
| Area code | 805 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 25.9% | 31.9% | 32.6% |
| $50k – $100k | 28.3% | 29.7% | 27.7% |
| $100k – $200k | 34.3% | 28.2% | 26.4% |
| Over $200k | 11.5% | 10.2% | 13.3% |
Demographics & statistics
32,126
Population
163
People per sq mi
45.8
Median age
$104,314
Median household income
$48,227
Per capita income
$836,500
Median home value
$2,028
Median monthly rent
67.6%
Home ownership
6.2%
Poverty rate
2.7%
Unemployment
9,557
Housing units
41.3%
Bachelor's or higher
Age distribution
Male
Female
842
Under 5
963
832
5–9
951
996
10–14
1,139
955
15–19
1,092
737
20–24
843
1,284
25–34
1,469
1,767
35–44
2,021
1,741
45–54
1,992
1,060
55–59
1,213
1,004
60–64
1,149
2,187
65–74
2,502
1,098
75–84
1,256
482
85+
551
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 6,840 | 21.3% |
| 18 and over | 25,286 | 78.7% |
| 65 and over | 8,076 | 25.1% |
| Median age | 45.8 years | |
Race & ethnicity
White
70.5%
Two or more races
13.1%
Hispanic or Latino
9.6%
Asian
2.9%
Other race
2.1%
Black or African American
1.2%
American Indian / Alaska Native
0.4%
Native Hawaiian / Pacific Islander
0.1%
| Group | Count | % |
|---|---|---|
| White | 25,047 | 70.5% |
| Two or more races | 4,653 | 13.1% |
| Hispanic or Latino | 3,395 | 9.6% |
| Asian | 1,033 | 2.9% |
| Other race | 758 | 2.1% |
| Black or African American | 441 | 1.2% |
| American Indian / Alaska Native | 157 | 0.4% |
| Native Hawaiian / Pacific Islander | 37 | 0.1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 25.9% | 31.9% | 32.6% |
| $50k – $100k | 28.3% | 29.7% | 27.7% |
| $100k – $200k | 34.3% | 28.2% | 26.4% |
| Over $200k | 11.5% | 10.2% | 13.3% |
Under $10k
3.2%
$10k–$15k
2.2%
$15k–$25k
5.5%
$25k–$35k
4.8%
$35k–$50k
8.1%
$50k–$75k
12.2%
$75k–$100k
11.1%
$100k–$150k
20.9%
$150k–$200k
16.2%
$200k+
15.8%
| Range | % of households |
|---|---|
| Under $10k | 3.2% |
| $10k–$15k | 2.2% |
| $15k–$25k | 5.5% |
| $25k–$35k | 4.8% |
| $35k–$50k | 8.1% |
| $50k–$75k | 12.2% |
| $75k–$100k | 11.1% |
| $100k–$150k | 20.9% |
| $150k–$200k | 16.2% |
| $200k+ | 15.8% |
| Median income | $104,314 |
Housing
Home values
Under $50k
1.1%
$50k–$100k
2.3%
$100k–$150k
1.3%
$150k–$200k
1.4%
$200k–$300k
2.2%
$300k–$500k
10.1%
$500k–$1M
49.7%
$1M+
31.8%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $836,500 |
| Median rent / month | $2,028 |
| Owner occupied | 67.6% |
| Renter occupied | 32.4% |
| Vacant | 8.3% |
| Single-family detached | 74.4% |
| Large apartment buildings | 4.0% |
| Mobile homes | 9.1% |
| Median rooms | 5.7 |
| Avg household size (owned) | 2.61 |
Year built
| Era | % |
|---|---|
| 2020 or later | 1.0% |
| 2010–2019 | 6.3% |
| 2000–2009 | 18.5% |
| 1990–1999 | 11.0% |
| 1980–1989 | 17.0% |
| 1970–1979 | 19.4% |
| 1960–1969 | 12.0% |
| 1950–1959 | 7.0% |
| 1940–1949 | 2.8% |
| 1939 or earlier | 5.0% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.0% |
| 1 bedroom | 8.7% |
| 2 bedrooms | 24.4% |
| 3 bedrooms | 47.1% |
| 4 bedrooms | 16.7% |
| 5+ bedrooms | 2.1% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 3.3% |
| 1 vehicle | 25.9% |
| 2 vehicles | 37.3% |
| 3 or more | 33.5% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 61.4% |
| Electricity | 21.5% |
| Propane / LP gas | 10.3% |
| Wood | 3.6% |
| Solar | 1.9% |
| No fuel used | 0.7% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 7,525 | 60.3% |
| Cohabiting couple | 592 | 4.7% |
| Male householder, no spouse | 1,444 | 11.6% |
| Female householder, no spouse | 2,909 | 23.3% |
| Households with children under 18 | 3,644 | 29.2% |
| Households with seniors (65+) | 5,557 | 44.6% |
| Average household size | 2.55 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 27.4% | 19.7% |
| Married | 61.9% | 56.5% |
| Separated | 0.4% | 3.3% |
| Widowed | 3.3% | 6.8% |
| Divorced | 7.0% | 13.7% |
Education
Less than 9th grade
1.7%
Some HS, no diploma
3.1%
HS graduate
18.9%
Some college, no degree
25.0%
Associate's degree
10.1%
Bachelor's degree
28.4%
Graduate / professional
12.9%
| Metric | % |
|---|---|
| HS diploma or higher | 95.2% |
| Bachelor's or higher | 41.3% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 495 | 6.5% |
| Kindergarten | 296 | 3.9% |
| Elementary school | 3,273 | 42.7% |
| High school | 1,650 | 21.5% |
| College / grad school | 1,952 | 25.5% |
Employment
Industry of employment
Education & healthcare
21.8%
Arts, food & hospitality
11.1%
Professional & management
10.6%
Construction
9.0%
Retail trade
8.8%
Manufacturing
8.4%
Public administration
7.4%
Transportation & utilities
7.1%
Other services
5.9%
Finance & real estate
4.8%
Wholesale trade
1.9%
Information
1.8%
Agriculture & mining
1.4%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 40.8% |
| Service | 17.9% |
| Sales & office | 22.7% |
| Natural resources & construction | 10.5% |
| Production & transportation | 8.1% |
Employment type
| Type | % |
|---|---|
| Private sector | 75.5% |
| Government | 15.0% |
| Self-employed | 9.4% |
| Unpaid family workers | 0.1% |
Commute
| Method | % |
|---|---|
| Drive alone | 71.6% |
| Carpool | 13.4% |
| Public transit | 0.2% |
| Walk | 2.0% |
| Work from home | 11.6% |
| Other means | 1.3% |
| Avg commute (minutes) | 22.1 |
Poverty
All people
6.2%
Under 18 years
7.2%
18 and over
6.0%
Married-couple families
2.6%
Female-led households
20.5%
Income support
| Source | % of households |
|---|---|
| Social Security | 42.6% |
| Retirement income | 33.6% |
| Supplemental Security | 5.8% |
| Cash public assistance | 1.6% |
| Food stamps / SNAP | 5.4% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 26.5% |
| High blood pressure | 30.6% |
| High cholesterol | 34.8% |
| Diabetes | 9.4% |
| Heart disease | 6.6% |
| Stroke | 2.9% |
| Asthma | 9.4% |
| Arthritis | 24.6% |
| Kidney disease | 2.9% |
| Pulmonary disease | 6.3% |
| Cancer | 8.2% |
| Behavior / access | % |
|---|---|
| Smoking | 10.3% |
| Binge drinking | 17.5% |
| No physical activity | 17.1% |
| Less than 7 hrs sleep | 29.2% |
| Depression | 17.7% |
| Fair or poor health | 12.1% |
| Poor mental health | 13.0% |
| Poor physical health | 9.6% |
| No health insurance | 8.4% |
| Visited doctor (checkup) | 70.4% |
| Visited dentist | 73.2% |
| Cholesterol screening | 93.5% |
| Teeth loss | 8.5% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1,749 | 6.9% |
| Disability | % |
|---|---|
| Any disability | 14.9% |
| Under 18 | 2.9% |
| 18–64 years | 10.1% |
| 65 and over | 35.6% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 76.0% |
| Public insurance | 35.7% |
| No insurance | 5.1% |
| Uninsured under 19 | 8.5% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 30,321 | 94.4% |
| Spanish | 617 | 2.0% |
| Other Indo-European | 358 | 1.2% |
| Asian & Pacific Islander | 110 | 0.4% |
| Other languages | 131 | 0.4% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 30,265 | 94.2% |
| Born in same state | 29,644 | 92.3% |
| Born in different state | 23,181 | 72.2% |
| Foreign born | 621 | 1.9% |
| Naturalized citizen | 1,861 | 5.8% |
| Not a US citizen | 1,428 | 76.7% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 5,299 | 16.5% |
| Italian | 3,587 | 11.2% |
| Arab | 1,032 | 3.2% |
| Polish | 764 | 2.4% |
| Ancestry | Count | % |
|---|---|---|
| English | 445 | 1.4% |
| Dutch | 195 | 0.6% |
| Irish | 156 | 0.5% |
| German | 49 | 0.2% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 38.8% |
| Internet access | 95.1% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 93420
What city is ZIP code 93420 in?
ZIP code 93420 is primarily assigned to Arroyo Grande, California.
What county is ZIP code 93420 in?
ZIP code 93420 falls within San Luis Obispo County, California.
Does ZIP code 93420 have an older population?
25% of residents in ZIP code 93420 are 65 or older, above the national average of ~17%.
Does ZIP code 93420 have a large retiree population?
43% of households in ZIP code 93420 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 93420?
The median home value in ZIP code 93420 is $836,500.
What is the median household income in ZIP code 93420?
The median household income in ZIP code 93420 is $104,314, above the national median of ~$75,000.
What timezone is ZIP code 93420 in?
ZIP code 93420 observes the PST timezone.