94587 ZIP Code — Union City, CA

Alameda County, California

ZIP code 94587 is located in Union City, California, within Alameda County. It covers approximately 19.63 square miles and serves a population of 69,502 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 341/510.

About ZIP code 94587

The housing stock consists of a mix of housing types. Most homes were built in the 1970s, giving the area an established character. Median home value is $1,006,600. Owner-occupancy sits near the national average at 66%.

The gap between median ($138,013) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 7% is below the national average. 31% 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 33 minutes is near the national average.

Educational attainment is near the national average, with 45% of residents holding a bachelor's degree or higher.

Notable community characteristics include Spanish spoken in 23% of households.

69,502

population

19.63

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

94587 ZIP code map

Cities in ZIP code 94587

Below are the cities the US Postal Service accepts for ZIP code 94587. Using any city not on this list may result in mail delivery delays.

City	Status
Union City	Preferred

Nearby ZIP codes

94544 Hayward (2.4 mi) 94542 Hayward (3.6 mi) 94555 Fremont (3.9 mi) 94536 Fremont (4.2 mi) 94545 Hayward (4.4 mi) 94541 Hayward (5.4 mi) 94560 Newark (5.6 mi) 94538 Fremont (7.1 mi) 94580 San Lorenzo (7.2 mi) 94552 Castro Valley (7.3 mi) 94579 San Leandro (8.5 mi) 94578 San Leandro (8.7 mi)

Demographics updated 06/2026

Population
Total population	69,502
Population density	3,541 / sq mi
State FIPS	06
County FIPS	001

Geography
Land area	19.63 sq mi
Water area	1.12 sq mi
Latitude	37.6021
Longitude	-122.0444
Timezone	Pacific (PT)
Area code	341/510

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	16.7%	24.6%	32.6%
$50k – $100k	24.1%	23.2%	27.7%
$100k – $200k	35.9%	30.5%	26.4%
Over $200k	23.3%	21.7%	13.3%

Demographics & statistics

69,502

Population

3,541

People per sq mi

41.3

Median age

$138,013

Median household income

$52,646

Per capita income

$1,006,600

Median home value

$2,593

Median monthly rent

66.0%

Home ownership

6.6%

Poverty rate

4.6%

Unemployment

14,561

Housing units

45.0%

Bachelor's or higher

Age distribution

Male Female

1,634

Under 5

1,579

1,702

5–9

1,645

1,913

10–14

1,848

1,768

15–19

1,708

1,987

20–24

1,920

5,154

25–34

4,979

5,429

35–44

5,246

4,600

45–54

4,444

2,328

55–59

2,249

2,494

60–64

2,410

3,680

65–74

3,556

1,871

75–84

1,807

789

85+

762

← Male

Female →

Age summary

Group	Count	%
Under 18	12,274	17.7%
18 and over	57,228	82.3%
65 and over	12,465	17.9%
Median age	41.3 years

Race & ethnicity

Asian 48.2%

White 15.2%

Hispanic or Latino 13.7%

Other race 9.9%

Two or more races 7.5%

Black or African American 4.1%

Native Hawaiian / Pacific Islander 0.7%

American Indian / Alaska Native 0.6%

Group	Count	%
Asian	38,809	48.2%
White	12,248	15.2%
Hispanic or Latino	11,074	13.7%
Other race	7,997	9.9%
Two or more races	6,053	7.5%
Black or African American	3,326	4.1%
Native Hawaiian / Pacific Islander	590	0.7%
American Indian / Alaska Native	479	0.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	16.7%	24.6%	32.6%
$50k – $100k	24.1%	23.2%	27.7%
$100k – $200k	35.9%	30.5%	26.4%
Over $200k	23.3%	21.7%	13.3%

Under $10k 3.1%

$10k–$15k 1.4%

$15k–$25k 3.4%

$25k–$35k 2.4%

$35k–$50k 4.7%

$50k–$75k 9.6%

$75k–$100k 11.0%

$100k–$150k 19.3%

$150k–$200k 13.1%

$200k+ 32.0%

Range	% of households
Under $10k	3.1%
$10k–$15k	1.4%
$15k–$25k	3.4%
$25k–$35k	2.4%
$35k–$50k	4.7%
$50k–$75k	9.6%
$75k–$100k	11.0%
$100k–$150k	19.3%
$150k–$200k	13.1%
$200k+	32.0%
Median income	$138,013

Housing

Home values

Under $50k 1.0%

$50k–$100k 1.1%

$100k–$150k 1.9%

$150k–$200k 2.1%

$200k–$300k 1.9%

$300k–$500k 4.4%

$500k–$1M 36.8%

$1M+ 50.8%

Housing overview

Metric	Value
Median home value	$1,006,600
Median rent / month	$2,593
Owner occupied	66.0%
Renter occupied	34.0%
Vacant	3.7%
Single-family detached	60.9%
Large apartment buildings	13.0%
Mobile homes	4.6%
Median rooms	5.2
Avg household size (owned)	3.30

Year built

Era	%
2020 or later	0.1%
2010–2019	3.9%
2000–2009	9.9%
1990–1999	15.4%
1980–1989	16.7%
1970–1979	33.4%
1960–1969	12.2%
1950–1959	5.0%
1940–1949	1.5%
1939 or earlier	2.0%

Bedrooms

Size	% of units
No bedroom (studio)	1.8%
1 bedroom	8.9%
2 bedrooms	20.9%
3 bedrooms	33.1%
4 bedrooms	28.8%
5+ bedrooms	6.4%

Vehicles per household

Vehicles	% of households
No vehicle	5.7%
1 vehicle	21.7%
2 vehicles	35.4%
3 or more	37.2%

Heating fuel

Fuel type	%
Utility gas	72.3%
Electricity	25.0%
Propane / LP gas	1.4%
Solar	0.3%
No fuel used	0.9%

Households & families

Household type	Count	%
Married-couple family	13,651	65.4%
Cohabiting couple	651	3.1%
Male householder, no spouse	2,714	13.0%
Female householder, no spouse	3,844	18.4%
Households with children under 18	7,042	33.8%
Households with seniors (65+)	7,731	37.1%
Average household size	3.28

Marital status

Status	Male	Female
Never married	34.8%	27.0%
Married	57.6%	54.9%
Separated	0.9%	1.1%
Widowed	1.8%	9.0%
Divorced	4.9%	8.0%

Education

Less than 9th grade 6.5%

Some HS, no diploma 6.3%

HS graduate 19.8%

Some college, no degree 16.0%

Associate's degree 6.4%

Bachelor's degree 28.7%

Graduate / professional 16.3%

Metric	%
HS diploma or higher	87.1%
Bachelor's or higher	45.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	786	5.5%
Kindergarten	714	5.0%
Elementary school	5,622	39.2%
High school	2,906	20.2%
College / grad school	4,323	30.1%

Employment

Industry of employment

Education & healthcare 20.5%

Professional & management 20.4%

Manufacturing 15.7%

Retail trade 8.8%

Transportation & utilities 6.7%

Arts, food & hospitality 6.3%

Finance & real estate 5.0%

Construction 4.0%

Information 3.8%

Other services 3.3%

Public administration 3.0%

Wholesale trade 2.3%

Agriculture & mining 0.2%

Occupation

Category	%
Management, business & arts	48.4%
Service	15.2%
Sales & office	16.8%
Natural resources & construction	5.3%
Production & transportation	14.3%

Employment type

Type	%
Private sector	85.1%
Government	10.3%
Self-employed	4.5%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	61.7%
Carpool	11.2%
Public transit	7.0%
Walk	0.6%
Work from home	17.0%
Other means	2.5%
Avg commute (minutes)	33.0

Poverty

All people 6.6%

Under 18 years 5.7%

18 and over 6.8%

Married-couple families 3.2%

Female-led households 9.1%

Income support

Source	% of households
Social Security	31.1%
Retirement income	22.2%
Supplemental Security	5.2%
Cash public assistance	5.8%
Food stamps / SNAP	7.3%

Health indicators

Condition	%
Obesity	20.7%
High blood pressure	24.6%
High cholesterol	28.5%
Diabetes	9.2%
Heart disease	4.0%
Stroke	2.1%
Asthma	7.6%
Arthritis	15.4%
Kidney disease	2.0%
Pulmonary disease	3.5%
Cancer	4.3%

Behavior / access	%
Smoking	9.4%
Binge drinking	13.8%
No physical activity	18.6%
Less than 7 hrs sleep	30.0%
Depression	11.7%
Fair or poor health	11.0%
Poor mental health	11.6%
Poor physical health	7.1%
No health insurance	11.0%
Visited doctor (checkup)	64.9%
Visited dentist	63.1%
Cholesterol screening	91.3%
Teeth loss	7.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	2,075	3.6%

Disability	%
Any disability	9.8%
Under 18	2.1%
18–64 years	6.2%
65 and over	30.2%

Health insurance coverage

Type	%
Private insurance	73.6%
Public insurance	32.8%
No insurance	2.8%
Uninsured under 19	3.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	66,289	95.4%
Spanish	15,508	23.4%
Other Indo-European	3,376	5.1%
Asian & Pacific Islander	2,706	4.1%
Other languages	9,172	13.8%

Place of birth & citizenship

Origin	Count	%
Native born (US)	36,645	52.7%
Born in same state	35,394	50.9%
Born in different state	30,235	43.5%
Foreign born	1,251	1.8%
Naturalized citizen	32,857	47.3%
Not a US citizen	22,475	68.4%

Ancestry

Ancestry	Count	%
Italian	1,833	2.6%
French	1,335	1.9%
Arab	708	1%
English	300	0.4%
Polish	294	0.4%

Ancestry	Count	%
Dutch	111	0.2%
Irish	59	0.1%
German	24	0%
Norwegian	5	0%

Technology access

Metric	% of households
Computer access	30.0%
Internet access	97.8%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 94587

What part of Union City is ZIP code 94587?

ZIP code 94587 covers a portion of Union City, California, within Alameda County.

What county is ZIP code 94587 in?

ZIP code 94587 falls within Alameda County, California.

Is Spanish widely spoken in ZIP code 94587?

Approximately 23% of households in ZIP code 94587 speak Spanish as a primary language.

What is the median household income in ZIP code 94587?

The median household income in ZIP code 94587 is $138,013, above the national median of ~$75,000.

What is the typical home value in ZIP code 94587?

The median home value in ZIP code 94587 is $1,006,600.

What is the population of ZIP code 94587?

ZIP code 94587 has an estimated population of 69,502 residents, with a density of 3,540 people per square mile.

What timezone is ZIP code 94587 in?

ZIP code 94587 observes the PST timezone.