Postal Codes

94538 ZIP Code

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ZIP code 94538 covers Fremont, California, with a population of about 67,704 and a median household income of $144,451.

Population
67,7044,094 per square mile
Median age
36.62.1 points below the US average
Median household income
$144,4511.5× the California median
Poverty rate
5%7.4 points below the US average
Typical home value
$1,283,053up 15.8% in five years
Median rent
$2,8601.5× the California median
Degree or higher
53.4%18.4 points above the US average
Homeownership
44.8%20.2 points below the US average
Time zone
Pacific UTC-08:00observes daylight saving time
Businesses
2,779

Where 94538 is

Fremont, 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

Population67,704
Median age36.6
Family households74.3%
Born outside the US50.5%
Speaks a language other than English at home66.2%
White (non-Hispanic)16.4%
Black (non-Hispanic)3.3%
Asian (non-Hispanic)56.2%
Hispanic or Latino19.5%
Veterans2.1%
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$144,451
Income per person$61,344
Poverty rate5%
Households on SNAP or cash assistance7.3%

Household income distribution

Under $10k2.8%
$10–15k1.6%
$15–20k0.8%
$20–25k1.9%
$25–30k1.4%
$30–35k1.3%
$35–40k1.4%
$40–45k1.1%
$45–50k1.6%
$50–60k4.2%
$60–75k6.1%
$75–100k7.5%
$100–125k12.6%
$125–150k7.3%
$150–200k15.7%
$200k or more32.8%

Income as declared to the IRS

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

Tax returns filed31,450
Mean adjusted gross income$136,912
Returns declaring $200,000 or more21%
Returns, under $25k17.4%
Returns, $25k–$50k15.6%
Returns, $50k–$75k13.8%
Returns, $75k–$100k9.7%
Returns, $100k–$200k22.5%
Returns, $200k or more21.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$1,104,800
Median gross rent$2,860
Rent as a share of household income27.5%
Owner-occupied44.8%
Vacant homes5.2%
Median year built1977

What the homes are

Detached house41.9%
Attached house11.3%
2 to 4 units3.6%
5 to 19 units11.3%
20 or more units30.2%
Mobile home1.7%
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$1,283,053as of 2026-07
Typical home value, 1 yeardown 3.1%
Typical home value, 5 yearsup 15.8%
Typical home value, 10 yearsup 72.3%
Typical asking rent$3,187as of 2026-07
Typical asking rent, 1 yearup 5.1%
Typical asking rent, 5 yearsup 21.5%
Typical home value since 2000
200020132026$1,351,783$296,419

$296,419 in 2000 to $1,283,053 in 2026.

Typical asking rent
201720212026$3,187$2,577

$2,577 in 2017 to $3,187 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.8%
Bachelor's degree or higher53.4%
High school diploma or higher89.8%
Works from home26.9%
Drives to work alone55.6%
Takes public transport5.1%
Commutes 45 minutes or more22.8%
Health

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

Obesity18.4% 15 pts below the national average of 33.4%
Diagnosed diabetes9.3% 2.7 pts below the national average of 12%
Currently smokes8.2% 5 pts below the national average of 13.2%
High blood pressure23.9% 10.2 pts below the national average of 34.1%
Fair or poor general health15.4% 4.9 pts below the national average of 20.3%
No health insurance (18–64)6.2% 5.1 pts below the national average of 11.3%
Depression16.4% 5.5 pts below the national average of 21.9%
No leisure-time physical activity19.3% 6.1 pts below the national average of 25.4%
Arthritis15.3% 9.8 pts below the national average of 25.1%
Binge drinking14.9% 1.1 pts below the national average of 16%
Taking blood pressure medication67.5% 7.2 pts below the national average of 74.7%
Cancer (non-skin)4.6% 3.1 pts below the national average of 7.7%
Current asthma7.7% 2.7 pts below the national average of 10.4%
Coronary heart disease3.7% 2.5 pts below the national average of 6.2%
Routine check-up in past year70.7% 6 pts below the national average of 76.7%
Cholesterol screening86.8% 0.9 pts above the national average of 85.9%
Cognitive disability10.6% 4.2 pts below the national average of 14.8%
Colorectal screening58.1% 6.2 pts below the national average of 64.3%
COPD3.1% 3.5 pts below the national average of 6.6%
Visited a dentist67.2% 5.9 pts above the national average of 61.3%
Any disability22.9% 7.8 pts below the national average of 30.7%
Lacks emotional support30.2% 5.4 pts above the national average of 24.8%
Food insecurity12.4% 4.7 pts below the national average of 17.1%
Received food stamps8.8% 5.5 pts below the national average of 14.3%
Hearing disability4.2% 2.5 pts below the national average of 6.7%
High cholesterol31.6% 4.6 pts below the national average of 36.2%
Housing insecurity10% 3.8 pts below the national average of 13.8%
Independent living disability5.3% 3.1 pts below the national average of 8.4%
Lacks transport6.4% 2.8 pts below the national average of 9.2%
Loneliness38.9% 4.5 pts above the national average of 34.4%
Mammography use75.5% same as the national average of 75.9%
Poor mental health (14+ days)13.9% 2.9 pts below the national average of 16.8%
Mobility disability8.8% 5.2 pts below the national average of 14%
Poor physical health (14+ days)9.8% 3.7 pts below the national average of 13.5%
Self-care disability2.2% 1.8 pts below the national average of 4%
Utility shut-off threat4.6% 4.2 pts below the national average of 8.8%
Sleeps under 7 hours34.5% 1.9 pts below the national average of 36.4%
Stroke2.1% 1.3 pts below the national average of 3.4%
All natural teeth lost6.1% 6.9 pts below the national average of 13%
Vision disability3.6% 2 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments2,779
People employed92,488
Annual payroll$13,500,260,000
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 92.5% of US census tracts
FEMA ratingRelatively Low to Very High across the 21 census tracts this ZIP code covers
Expected annual loss95.5 out of 100
Community resilience85.7 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.

Earthquake98.1Very High at its worst in this ZIP code
River flooding86.6Very High at its worst in this ZIP code
Landslide66.9Relatively Low at its worst in this ZIP code
Drought65.5Relatively Moderate at its worst in this ZIP code
Coastal flooding52.8Relatively High at its worst in this ZIP code
Tsunami46.8Very Low at its worst in this ZIP code
Heat wave40.4Relatively Moderate at its worst in this ZIP code
Wildfire35.7Very Low at its worst in this ZIP code
Tornado29.1Relatively Low at its worst in this ZIP code
Hail25.3Relatively Low at its worst in this ZIP code
Strong wind6.7Very Low at its worst in this ZIP code
Lightning4.5Very 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$144,451$96,334$78,538
Income per person$61,344$47,977$43,289
Poverty rate5%12%12.4%
Median home value$1,104,800$695,400$303,400
Median gross rent$2,860$1,956$1,348
Homeownership44.8%55.8%65%
Bachelor's degree or higher53.4%36.5%35%
Unemployment rate3.8%6.4%5.2%
Works from home26.9%15.5%13.5%
Born outside the US50.5%26.7%13.9%
Median age36.637.638.7
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 stationFREMONT, CA US4.1 km away
Rain in a year16 in

Average high and low by month

January58.6°F / 42.6°F3 in rain
February61.4°F / 44.4°F3.17 in rain
March65.1°F / 46.4°F2.52 in rain
April67.7°F / 48.3°F1.22 in rain
May71.1°F / 51.9°F0.5 in rain
June75.3°F / 54.7°F0.16 in rain
July77.9°F / 56.8°F0 in rain
August78.2°F / 57.1°F0.02 in rain
September78.3°F / 56°F0.1 in rain
October73.3°F / 52°F0.69 in rain
November64.6°F / 46.2°F1.59 in rain
December58.4°F / 42.5°F2.97 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 supermarket1% of this ZIP code's area
No vehicle and far from a supermarket4% of this ZIP code's area
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%.

Fremont Unified School District100% 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 vulnerability33more vulnerable than 33% of US census tracts
Socioeconomic status16more vulnerable than 16% of US census tracts
Household characteristics40more vulnerable than 40% of US census tracts
Racial and ethnic minority status90more vulnerable than 90% of US census tracts
Housing type and transport43more vulnerable than 43% of US census tracts
Walkability12.8 out of 20Above average
Nearby ZIP codes

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

94539 Fremont, CA4 km away
94536 Fremont, CA4.2 km away
94560 Newark, CA5.4 km away
94555 Fremont, CA8.2 km away
94587 Union City, CA9.5 km away
94586 Sunol, CA10.8 km away
95002 Alviso, CA11.7 km away
95035 Milpitas, CA12.6 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.

Alameda County100% of this ZIP code's land area
Time zonePacific (UTC-08:00 standard)
Daylight saving timeObserved
Land area16.54 sq mi
Water area0.1 sq mi
Population density4,094 people per sq mi
Latitude, longitude37.5308, -121.9712

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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