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California ZIP Codes
Fresno County
San Joaquin, CA
93660
93660 ZIP Code — San Joaquin, CA
Fresno County, California
ZIP code 93660 is located in
San Joaquin ,
California ,
within Fresno County .
It covers approximately 48.76 square miles and serves a population of
3,921 residents.
This is a standard ZIP code in the Pacific (PT) timezone,
served by area code 559 .
About ZIP code 93660
The housing stock consists of a mix of housing types. Most homes were built in the 1990s, giving the area an established character. Median home value is $254,300. Renters make up the majority at 57%, typical of denser urban areas.
Median household income is $53,085. Poverty affects 32% of residents, above the national average. SNAP benefit usage at 31% of households reflects economic stress in the area.
The dominant occupation class is natural resources, construction, and trades, with agriculture and mining as the leading industry. The average commute of 24 minutes is near the national average.
College attainment at 2% is below the national average, consistent with a trades and production-oriented local economy.
Notable community characteristics include Spanish spoken in 46% of households.
Overall, ZIP code 93660 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, and elevated reliance on food assistance.
93660 ZIP code map
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Cities in ZIP code 93660
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Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
3,921
Population density
80 / sq mi
State FIPS
06
County FIPS
019
Geography
Land area
48.76 sq mi
Water area
0.00 sq mi
Latitude
36.6071
Longitude
-120.1774
Timezone
Pacific (PT)
Area code
559
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
56.9%
44.6%
32.6%
$50k – $100k
33.7%
29.2%
27.7%
$100k – $200k
9.4%
20.5%
26.4%
Over $200k
0.0%
5.8%
13.3%
Demographics & statistics
$53,085
Median household income
$254,300
Median home value
Age distribution
Age summary
Group Count %
Under 18 1,444 36.8%
18 and over 2,477 63.2%
65 and over 250 6.4%
Median age 26.3 years
Race & ethnicity
Black or African American
1.9%
American Indian / Alaska Native
0.5%
Group Count %
Hispanic or Latino 2,379 37.8%
Other race 1,888 30%
White 1,337 21.2%
Two or more races 548 8.7%
Black or African American 118 1.9%
American Indian / Alaska Native 30 0.5%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
56.9%
44.6%
32.6%
$50k – $100k
33.7%
29.2%
27.7%
$100k – $200k
9.4%
20.5%
26.4%
Over $200k
0.0%
5.8%
13.3%
Range % of households
Under $10k 3.7%
$10k–$15k 6.8%
$15k–$25k 10.5%
$25k–$35k 16.3%
$35k–$50k 10.7%
$50k–$75k 22.9%
$75k–$100k 10.5%
$100k–$150k 6.0%
$150k–$200k 1.5%
$200k+ 11.2%
Median income $53,085
Housing
Housing overview
Metric Value
Median home value $254,300
Median rent / month $988
Owner occupied 42.9%
Renter occupied 57.1%
Vacant 6.8%
Single-family detached 67.1%
Large apartment buildings 0.0%
Mobile homes 5.9%
Median rooms 5.0
Avg household size (owned) 4.25
Year built
Era %
2020 or later 0.0%
2010–2019 2.2%
2000–2009 13.3%
1990–1999 21.2%
1980–1989 19.7%
1970–1979 7.8%
1960–1969 14.9%
1950–1959 11.6%
1940–1949 1.3%
1939 or earlier 7.9%
Bedrooms
Size % of units
No bedroom (studio) 3.2%
1 bedroom 5.5%
2 bedrooms 18.3%
3 bedrooms 53.5%
4 bedrooms 18.6%
5+ bedrooms 0.9%
Vehicles per household
Vehicles % of households
No vehicle 4.8%
1 vehicle 29.8%
2 vehicles 39.3%
3 or more 26.0%
Heating fuel
Fuel type %
Utility gas 43.8%
Electricity 54.0%
Propane / LP gas 2.2%
Households & families
Household type Count %
Married-couple family 608 66.2%
Cohabiting couple 39 4.2%
Male householder, no spouse 55 6.0%
Female householder, no spouse 216 23.5%
Households with children under 18 590 64.3%
Households with seniors (65+) 161 17.5%
Average household size 4.27
Marital status
Status Male Female
Never married 36.7% 36.0%
Married 61.5% 53.5%
Separated 0.8% 1.4%
Widowed 1.0% 3.5%
Divorced 0.0% 5.7%
Education
Less than 9th grade
34.9%
Some HS, no diploma
13.9%
Some college, no degree
17.9%
Graduate / professional
0.0%
Metric %
HS diploma or higher 51.2%
Bachelor's or higher 2.4%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 28 2.1%
Kindergarten 87 6.5%
Elementary school 520 38.9%
High school 423 31.6%
College / grad school 279 20.9%
Employment
Industry of employment
Agriculture & mining
45.7%
Education & healthcare
10.1%
Arts, food & hospitality
5.8%
Professional & management
2.4%
Public administration
2.2%
Finance & real estate
2.1%
Transportation & utilities
1.8%
Occupation
Category %
Management, business & arts 6.5%
Service 10.6%
Sales & office 22.6%
Natural resources & construction 44.6%
Production & transportation 15.7%
Employment type
Type %
Private sector 88.9%
Government 8.7%
Self-employed 2.4%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 79.5%
Carpool 13.9%
Public transit 0.0%
Walk 0.8%
Work from home 5.8%
Other means 0.0%
Avg commute (minutes) 24.0
Poverty
Married-couple families
25.8%
Female-led households
46.6%
Income support
Source % of households
Social Security 19.6%
Retirement income 5.2%
Supplemental Security 7.2%
Cash public assistance 4.2%
Food stamps / SNAP 30.9%
Health indicators
Condition %
Obesity 40.5%
High blood pressure 27.5%
High cholesterol 24.9%
Diabetes 13.8%
Heart disease 5.7%
Stroke 3.1%
Asthma 11.3%
Arthritis 19.0%
Kidney disease 3.4%
Pulmonary disease 6.4%
Cancer 3.2%
Behavior / access %
Smoking 18.3%
Binge drinking 17.7%
No physical activity 37.5%
Less than 7 hrs sleep 34.7%
Depression 20.3%
Fair or poor health 30.3%
Poor mental health 18.9%
Poor physical health 15.9%
No health insurance 34.5%
Visited doctor (checkup) 62.4%
Visited dentist 40.4%
Cholesterol screening 82.1%
Teeth loss 22.6%
Veterans & disability
Veterans Count %
Civilian veterans 27 1.1%
Disability %
Any disability 4.5%
Under 18 1.1%
18–64 years 3.5%
65 and over 33.2%
Health insurance coverage
Type %
Private insurance 31.3%
Public insurance 71.4%
No insurance 9.6%
Uninsured under 19 1.4%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 3,488 89.0%
Spanish 1,593 45.7%
Other Indo-European 1,593 45.7%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 2,317 59.1%
Born in same state 2,317 59.1%
Born in different state 2,233 56.9%
Foreign born 0 0.0%
Naturalized citizen 1,604 40.9%
Not a US citizen 510 31.8%
Ancestry
Ancestry Count %
Italian 19 0.5%
Ancestry Count %
Dutch 12 0.3%
Technology access
Metric % of households
Computer access 23.4%
Internet access 90.8%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 93660
What city is ZIP code 93660 in?
ZIP code 93660 is primarily assigned to San Joaquin, California.
What county is ZIP code 93660 in?
ZIP code 93660 falls within Fresno County, California.
Is Spanish widely spoken in ZIP code 93660?
Approximately 46% of households in ZIP code 93660 speak Spanish as a primary language.
Is ZIP code 93660 family-oriented?
37% of residents in ZIP code 93660 are under 18, reflecting a younger, family-oriented community.
What is the poverty rate in ZIP code 93660?
32% of residents in ZIP code 93660 live below the poverty line, above the national average.
How educated is the population of ZIP code 93660?
2% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What timezone is ZIP code 93660 in?
ZIP code 93660 observes the PST timezone.
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