Postal Codes

92831 ZIP Code

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ZIP code 92831 covers Fullerton, California, with a population of about 35,831 and a median household income of $89,451.

Population
35,8316,023 per square mile
Median age
31.77 points below the US average
Median household income
$89,4517% below the California median
Poverty rate
16.1%3.7 points above the US average
Typical home value
$1,069,019up 31.4% in five years
Median rent
$2,0931.1× the California median
Degree or higher
44.4%9.4 points above the US average
Homeownership
40.4%24.6 points below the US average
Time zone
Pacific UTC-08:00observes daylight saving time
Businesses
1,199

Where 92831 is

Fullerton, California — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population35,831
Median age31.7
Family households59.8%
Born outside the US23.6%
Speaks a language other than English at home42.7%
White (non-Hispanic)34.4%
Black (non-Hispanic)1.9%
Asian (non-Hispanic)16.7%
Hispanic or Latino41.7%
Veterans3.3%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$89,451
Income per person$46,751
Poverty rate16.1%
Households on SNAP or cash assistance8.3%

Household income distribution

Under $10k6.5%
$10–15k2.7%
$15–20k1.4%
$20–25k1.9%
$25–30k2.7%
$30–35k3.0%
$35–40k3.9%
$40–45k3.4%
$45–50k2.7%
$50–60k5.0%
$60–75k8.6%
$75–100k13.5%
$100–125k9.5%
$125–150k10.1%
$150–200k8.4%
$200k or more16.7%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed16,190
Mean adjusted gross income$92,011
Returns declaring $200,000 or more8.8%
Returns, under $25k25.9%
Returns, $25k–$50k24.2%
Returns, $50k–$75k16.0%
Returns, $75k–$100k9.2%
Returns, $100k–$200k15.9%
Returns, $200k or more8.8%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$821,300
Median gross rent$2,093
Rent as a share of household income37%
Owner-occupied40.4%
Vacant homes6.3%
Median year built1969

What the homes are

Detached house39.8%
Attached house8.8%
2 to 4 units11.6%
5 to 19 units12.2%
20 or more units27%
Mobile home0.4%
Boat, RV or van0.1%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$1,069,019as of 2026-07
Typical home value, 1 yearup 2.3%
Typical home value, 5 yearsup 31.4%
Typical home value, 10 yearsup 83.4%
Typical asking rent$2,712as of 2026-07
Typical asking rent, 1 yearup 5.9%
Typical asking rent, 5 yearsup 27.6%
Typical home value since 2000
200020132026$1,069,019$255,199

$255,199 in 2000 to $1,069,019 in 2026.

Typical asking rent
202020232026$2,712$1,888

$1,888 in 2020 to $2,712 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate7.9%
Bachelor's degree or higher44.4%
High school diploma or higher89.5%
Works from home14.2%
Drives to work alone70.7%
Takes public transport1.4%
Commutes 45 minutes or more17.9%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity24.3% 9.1 pts below the national average of 33.4%
Diagnosed diabetes8.9% 3.1 pts below the national average of 12%
Currently smokes9.3% 3.9 pts below the national average of 13.2%
High blood pressure23.8% 10.3 pts below the national average of 34.1%
Fair or poor general health20.5% same as the national average of 20.3%
No health insurance (18–64)10.3% 1 pts below the national average of 11.3%
Depression21.3% 0.6 pts below the national average of 21.9%
No leisure-time physical activity23.4% 2 pts below the national average of 25.4%
Arthritis14.9% 10.2 pts below the national average of 25.1%
Binge drinking16.9% 0.9 pts above the national average of 16%
Taking blood pressure medication66.3% 8.4 pts below the national average of 74.7%
Cancer (non-skin)5% 2.7 pts below the national average of 7.7%
Current asthma9.5% 0.9 pts below the national average of 10.4%
Coronary heart disease4.2% 2 pts below the national average of 6.2%
Routine check-up in past year69.8% 6.9 pts below the national average of 76.7%
Cholesterol screening82% 3.9 pts below the national average of 85.9%
Cognitive disability15.9% 1.1 pts above the national average of 14.8%
Colorectal screening57.4% 6.9 pts below the national average of 64.3%
COPD3.9% 2.7 pts below the national average of 6.6%
Visited a dentist62.1% 0.8 pts above the national average of 61.3%
Any disability28.3% 2.4 pts below the national average of 30.7%
Lacks emotional support28.7% 3.9 pts above the national average of 24.8%
Food insecurity18.6% 1.5 pts above the national average of 17.1%
Received food stamps15.5% 1.2 pts above the national average of 14.3%
Hearing disability4.6% 2.1 pts below the national average of 6.7%
High cholesterol30.8% 5.4 pts below the national average of 36.2%
Housing insecurity15.1% 1.3 pts above the national average of 13.8%
Independent living disability8% same as the national average of 8.4%
Lacks transport10.2% 1 pts above the national average of 9.2%
Loneliness37.9% 3.5 pts above the national average of 34.4%
Mammography use78.3% 2.4 pts above the national average of 75.9%
Poor mental health (14+ days)19% 2.2 pts above the national average of 16.8%
Mobility disability10.5% 3.5 pts below the national average of 14%
Poor physical health (14+ days)11.8% 1.7 pts below the national average of 13.5%
Self-care disability3.1% 0.9 pts below the national average of 4%
Utility shut-off threat7.7% 1.1 pts below the national average of 8.8%
Sleeps under 7 hours35.5% 0.9 pts below the national average of 36.4%
Stroke2.3% 1.1 pts below the national average of 3.4%
All natural teeth lost9.3% 3.7 pts below the national average of 13%
Vision disability5.1% 0.5 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments1,199
People employed20,065
Annual payroll$1,053,080,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 90.6% of US census tracts
FEMA ratingRelatively Moderate to Very High across the 11 census tracts this ZIP code covers
Expected annual loss91.9 out of 100
Community resilience14.2 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Earthquake97.2Very High at its worst in this ZIP code
River flooding85.6Relatively High at its worst in this ZIP code
Landslide69.4Relatively Moderate at its worst in this ZIP code
Hail33.2Relatively Low at its worst in this ZIP code
Heat wave29Relatively Moderate at its worst in this ZIP code
Wildfire26.9Relatively Low at its worst in this ZIP code
Tornado24.9Relatively Low at its worst in this ZIP code
Strong wind12.7Relatively Low at its worst in this ZIP code
Lightning5.4Very Low at its worst in this ZIP code
Compared with California and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPCaliforniaUnited States
Median household income$89,451$96,334$78,538
Income per person$46,751$47,977$43,289
Poverty rate16.1%12%12.4%
Median home value$821,300$695,400$303,400
Median gross rent$2,093$1,956$1,348
Homeownership40.4%55.8%65%
Bachelor's degree or higher44.4%36.5%35%
Unemployment rate7.9%6.4%5.2%
Works from home14.2%15.5%13.5%
Born outside the US23.6%26.7%13.9%
Median age31.737.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationANAHEIM, CA US5.4 km away
Rain in a year14 in

Average high and low by month

January71°F / 48.9°F3.16 in rain
February71°F / 49.3°F3.05 in rain
March73.7°F / 51.4°F1.8 in rain
April76.6°F / 54.1°F0.7 in rain
May78°F / 58.2°F0.41 in rain
June81.7°F / 61.7°F0.11 in rain
July86.8°F / 65.6°F0.11 in rain
August88.8°F / 66°F0.01 in rain
September87.8°F / 64.1°F0.15 in rain
October83.4°F / 59.3°F0.62 in rain
November76.8°F / 53°F1.01 in rain
December70.6°F / 48.2°F2.39 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 3 school districts, so the address decides which one, not the ZIP code.

Fullerton Elementary School District46% of this ZIP code's land area
Fullerton Joint Union High School District46% of this ZIP code's land area
Placentia-Yorba Linda Unified School District7.8% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability57more vulnerable than 57% of US census tracts
Socioeconomic status53more vulnerable than 53% of US census tracts
Household characteristics35more vulnerable than 35% of US census tracts
Racial and ethnic minority status74more vulnerable than 74% of US census tracts
Housing type and transport64more vulnerable than 64% of US census tracts
Walkability14.1 out of 20Above average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

92834 Fullerton, CA1.2 km away
92836 Fullerton, CA1.6 km away
92835 Fullerton, CA1.7 km away
92838 Fullerton, CA3.4 km away
92822 Brea, CA3.5 km away
92871 Placentia, CA3.6 km away
92832 Fullerton, CA3.6 km away
92870 Placentia, CA4 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Orange County100% of this ZIP code's land area
Time zonePacific (UTC-08:00 standard)
Daylight saving timeObserved
Land area5.95 sq mi
Population density6,023 people per sq mi
Latitude, longitude33.8873, -117.8946

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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