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California ZIP Codes
Sonoma County
Fulton, CA
95439
95439 ZIP Code — Fulton, CA
Sonoma County, California
ZIP code 95439 is located in
Fulton ,
California ,
within Sonoma County .
It covers approximately 2.67 square miles and serves a population of
782 residents.
This is a standard ZIP code in the Pacific (PT) timezone,
served by area code 707 .
About ZIP code 95439
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $753,800. Owner-occupancy is high at 90%, well above the national average.
Median household income is $158,125. Poverty affects 24% of residents, above the national average. 64% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 32 minutes is near the national average.
Educational attainment is near the national average, with 27% of residents holding a bachelor's degree or higher.
Overall, ZIP code 95439 reflects a community defined by economic challenges above the national average, high homeownership, and a significant Social Security-dependent population.
95439 ZIP code map
View map of 95439
Cities in ZIP code 95439
Below are the cities the US Postal Service accepts for ZIP code 95439. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
782
Population density
293 / sq mi
State FIPS
06
County FIPS
097
Geography
Land area
2.67 sq mi
Water area
0.00 sq mi
Latitude
38.4952
Longitude
-122.7778
Timezone
Pacific (PT)
Area code
707
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
35.6%
27.9%
32.6%
$50k – $100k
25.8%
29.7%
27.7%
$100k – $200k
21.2%
30.2%
26.4%
Over $200k
17.4%
12.2%
13.3%
Demographics & statistics
$158,125
Median household income
$753,800
Median home value
26.9%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 173 22.1%
18 and over 609 77.9%
65 and over 256 32.7%
Median age 57.1 years
Race & ethnicity
Group Count %
White 513 50.9%
Hispanic or Latino 226 22.4%
Other race 226 22.4%
Two or more races 43 4.3%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
35.6%
27.9%
32.6%
$50k – $100k
25.8%
29.7%
27.7%
$100k – $200k
21.2%
30.2%
26.4%
Over $200k
17.4%
12.2%
13.3%
Range % of households
Under $10k 5.6%
$15k–$25k 3.4%
$35k–$50k 15.0%
$50k–$75k 10.5%
$100k–$150k 11.3%
$150k–$200k 34.2%
$200k+ 19.9%
Median income $158,125
Housing
Housing overview
Metric Value
Median home value $753,800
Median rent / month $0
Owner occupied 89.5%
Renter occupied 10.5%
Vacant 12.2%
Single-family detached 90.8%
Large apartment buildings 0.0%
Mobile homes 0.0%
Median rooms 5.4
Avg household size (owned) 2.61
Year built
Era %
2020 or later 0.0%
2010–2019 9.2%
2000–2009 0.0%
1990–1999 5.3%
1980–1989 6.6%
1970–1979 9.2%
1960–1969 11.6%
1950–1959 0.0%
1940–1949 39.3%
1939 or earlier 18.8%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 0.0%
2 bedrooms 30.0%
3 bedrooms 46.2%
4 bedrooms 23.8%
5+ bedrooms 0.0%
Vehicles per household
Vehicles % of households
No vehicle 0.0%
1 vehicle 0.0%
2 vehicles 38.0%
3 or more 62.0%
Heating fuel
Fuel type %
Utility gas 83.8%
Electricity 10.9%
Propane / LP gas 5.3%
Households & families
Household type Count %
Married-couple family 82 30.8%
Cohabiting couple 72 27.1%
Male householder, no spouse 43 16.2%
Female householder, no spouse 69 25.9%
Households with children under 18 90 33.8%
Households with seniors (65+) 171 64.3%
Average household size 2.94
Marital status
Status Male Female
Never married 38.0% 28.7%
Married 30.3% 24.2%
Separated 0.0% 0.0%
Widowed 10.2% 22.4%
Divorced 21.5% 24.8%
Education
Less than 9th grade
12.8%
Some college, no degree
25.3%
Graduate / professional
8.5%
Metric %
HS diploma or higher 84.9%
Bachelor's or higher 26.9%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 21 10.0%
Kindergarten 0 0.0%
Elementary school 99 47.1%
High school 23 11.0%
College / grad school 67 31.9%
Employment
Industry of employment
Public administration
10.8%
Agriculture & mining
9.9%
Arts, food & hospitality
9.9%
Education & healthcare
9.3%
Professional & management
6.5%
Transportation & utilities
5.7%
Occupation
Category %
Management, business & arts 39.1%
Service 4.5%
Sales & office 27.5%
Natural resources & construction 9.9%
Production & transportation 19.0%
Employment type
Type %
Private sector 61.5%
Government 20.4%
Self-employed 10.2%
Unpaid family workers 7.9%
Commute
Method %
Drive alone 78.5%
Carpool 0.0%
Public transit 0.0%
Walk 7.9%
Work from home 13.6%
Other means 0.0%
Avg commute (minutes) 32.0
Poverty
Married-couple families
0.0%
Female-led households
39.4%
Income support
Source % of households
Social Security 64.3%
Retirement income 40.6%
Supplemental Security 0.0%
Cash public assistance 6.0%
Food stamps / SNAP 16.5%
Health indicators
Condition %
Obesity 25.1%
High blood pressure 27.9%
High cholesterol 29.8%
Diabetes 8.9%
Heart disease 5.9%
Stroke 2.6%
Asthma 9.8%
Arthritis 23.3%
Kidney disease 2.7%
Pulmonary disease 5.9%
Cancer 6.8%
Behavior / access %
Smoking 11.9%
Binge drinking 19.6%
No physical activity 18.7%
Less than 7 hrs sleep 28.8%
Depression 17.8%
Fair or poor health 12.8%
Poor mental health 13.8%
Poor physical health 9.7%
No health insurance 11.3%
Visited doctor (checkup) 64.7%
Visited dentist 66.2%
Cholesterol screening 91.9%
Teeth loss 9.1%
Veterans & disability
Veterans Count %
Civilian veterans 27 4.4%
Disability %
Any disability 14.5%
Under 18 0.0%
18–64 years 11.9%
65 and over 27.7%
Health insurance coverage
Type %
Private insurance 53.6%
Public insurance 63.3%
No insurance 2.8%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 752 96.2%
Spanish 95 12.6%
Other Indo-European 95 12.6%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 687 87.9%
Born in same state 687 87.9%
Born in different state 587 75.1%
Foreign born 0 0.0%
Naturalized citizen 95 12.1%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
French 102 13%
Italian 48 6.1%
Ancestry Count %
Polish 20 2.6%
German 14 1.8%
Technology access
Metric % of households
Computer access 34.0%
Internet access 100.0%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 95439
What city is ZIP code 95439 in?
ZIP code 95439 is primarily assigned to Fulton, California.
What county is ZIP code 95439 in?
ZIP code 95439 falls within Sonoma County, California.
Does ZIP code 95439 have a large retiree population?
64% of households in ZIP code 95439 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 95439 have an older population?
33% of residents in ZIP code 95439 are 65 or older, above the national average of ~17%.
Is ZIP code 95439 mostly owner-occupied?
90% of occupied units in ZIP code 95439 are owner-occupied, well above the national average.
What is the poverty rate in ZIP code 95439?
24% of residents in ZIP code 95439 live below the poverty line, above the national average.
What timezone is ZIP code 95439 in?
ZIP code 95439 observes the PST timezone.
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