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Union City, CA

Last updated
Key Indicators
A quick look at key numbers

Population

67,464
Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

43
years ∙ half population younger than 43, half older

Diversity Index

Low High
61.4%
chance two random people differ in race and ethnicity

Nativity

48.7%
foreign-born population
51.3%Native
48.7% Foreign-born

Geographic Context

Location, size, and surroundings

About

Union City is a city within Alameda County, California, United States.
Location
City in Alameda County, CA, US
Co-ordinates
DEC37.602759° N, 122.018840° W
DMS37° 36′ 09.93″ N, 122° 01′ 07.82″ W

Population Density & area

3,478/sq mi (1,344/km²)
Total Area
19.4 sq mi (50.2 km²)
Land Area
19.4 sq mi (50.2 km²) · 100%
Water Area
0 sq mi (0 km²) · 0%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

49.8% male
Male 49.8%
Female 50.2%
males per 100 females
Union City 99.3
Alameda County 98.6
California 99.8

Nativity

48.7%
foreign-born population
51.3%Native
48.7% Foreign-born
% Foreign-born
Union City 48.7%
Alameda County 34.7%
California 27%
Age Distribution
How the population is spread across age groups

Median Age

43
years ∙ half population younger than 43, half older
Union City
43
Alameda County
39
California
37.9

Dependency ratio

Low High
57.2
dependents per 100 working-age adults
Union City 57.2
Alameda County 54.3
California 60.4

AGE DISTRIBUTION

Distribution of age group
Median age
Union City Alameda County California
Age Group
Children (Under 18) 17% 19.8% 22%
Working age (18-64) 63.6% 64.8% 62.3%
Senior (65+) 19.4% 15.4% 15.7%
Dependency ratio
Total dependency ratio 57.2 54.3 60.4
Child dependency ratio 26.7 30.5 35.2
Old-age dependency ratio 30.5 23.8 25.1
Racial & Ethnic Composition
Racial and ethnic makeup and how it compares

Race & Ethnicity

White
13.6%
Black
4.4%
Asian
56.9%
Hispanic
20.2%
Other
4.9%
Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

Low High
61.4%
chance two random people differ in race and ethnicity
Union City 61.4%
Alameda County 75.1%
California 69.6%
Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity
Percentage of Union City population
Union City Alameda County California
Hispanic or Latino 20.2% 23.4% 40.2%
Mexican 16.6% 16.2% 32.3%
Puerto Rican 0.6% 0.7% 0.6%
Cuban 0.1% 0.2% 0.3%
Other Hispanic / Latino 2.9% 6.3% 7%
Not Hispanic or Latino 79.8% 76.6% 59.8%
One race 76.4% 71% 55.4%
White 13.6% 27.4% 33.8%
Black or African American 4.4% 9.3% 5.2%
American Indian and Alaska Native 0.2% 0.2% 0.3%
Asian 56.9% 32.7% 15.3%
Native Hawaiian and Other Pacific Islander 0.6% 0.7% 0.3%
Some Other Race 0.5% 0.6% 0.6%
Two or more races (Multiracial) 3.4% 5.6% 4.4%
Household & Families Composition
Household size, type, and family structure

Household structure

77.9% family
Family 77.9%
Non family 22.1%
% family households
Union City 77.9%
Alameda County 65.3%
California 67.8%

Average household size

3.13
persons per household
Union City
3.13
Alameda County
2.7
California
2.84

Household & Family COMPOSITION

Households
Percentage of Union City population
Union City Alameda County California
Total households 21,240 598,246 13,548,091
Average houshold size 3.13 2.7 2.84
Family households 16,545 390,699 9,191,176
Average family size 3.54 3.28 3.41
Married couple family 13,023 296,397 6,557,184
Other families 3,522 94,302 2,633,992
Male householder 1,407 29,453 857,732
Female householder 2,115 64,849 1,776,260
Non-family households 4,695 207,547 4,356,915
One-person households 3,730 152,739 3,289,307
Male householder 1,715 68,647 1,493,062
Senior (65+) living alone 447 19,523 460,668
Female householder 2,015 84,092 1,796,245
Senior (65+) living alone 1,120 36,199 886,142
Other living arrangements 965 54,808 1,067,608

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

21,901
housing units
Union City 21,901
Alameda County 637,212
California 14,644,735

Occupancy status

97% occupied
Occupied 97%
Vacant 3%
vacancy rate
Union City 3%
Alameda County 6.1%
California 7.5%
Housing Characteristics
How the housing supply is structured and used

Types of Housing unit

70.2%
Single family houses
Single family houses
70.2%
Apartments in multi-unit structures
24.5%
Mobile homes
5.2%
Boat, RV, van, etc
0.1%

Median Year Built

1980
Half of houses were built before 1980, and half after.
Historic ∙ 1939 or earlier
2.6%
Postwar & mid-century ∙ 1940 - 1969
18.3%
Late 20th century ∙ 1970 - 1999
62.3%
Modern ∙ 2000 or later
16.7%
Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms
Physical characteristics of housing units
Union City Alameda County California
Rooms per unit
Median rooms 5.4 4.8 5
1–3 rooms 18.6% 25.2% 21%
4–6 rooms 52.3% 52.1% 54.7%
7+ rooms 29% 22.7% 24.4%
Bedrooms
No bedroom / studio 2.2% 5.5% 5%
1 bedroom 9.7% 16.1% 13.2%
2 bedrooms 21.8% 28.2% 26.9%
3 bedrooms 29.4% 29.3% 32.8%
4+ bedrooms 36.9% 20.8% 22.1%
At a glance
Median year built 1980 1969 1976
Total housing units 21,901 637,212 14,644,735
Occupancy Profile
Who is inside and how they use it

Homeownership

64.7% owners
Renter-occupied 35.3%
Owner-occupied 64.7%
homeownership rate
Union City 64.7%
Alameda County 54.4%
California 55.9%

Average household size

3.21
Owner-occupied
2.98
Renter-occupied
owner-occupied average size
Union City 3.21
Alameda County 2.87
California 2.95

Housing Characteristics

Occupied unit characteristics
Tenure, crowding, and utilities
Union City Alameda County California
Total occupied units 21,240 598,246 13,548,091
Year moved in
2020 or later 21.5% 24.7% 23.4%
2010 to 2019 34.9% 39.7% 41.2%
2000 to 2009 19% 16.2% 17%
1999 or earlier 24.7% 19.4% 18.5%
Occupants per room
1.00 or fewer 93.5% 92.7% 91.8%
1.01 to 1.50 4.8% 4.6% 5%
1.51 or more 1.7% 2.7% 3.2%
Vehicles availability
No vehicles 5.9% 10% 7.1%
1 vehicle 23.4% 33.7% 30.7%
2 vehicles 37% 35.6% 36.3%
3 or more vehicles 33.7% 20.6% 25.8%
House heating fuel used
Gas 67.5% 66.9% 64.4%
Electricity 30.4% 29.6% 29.5%
Solar 0.7% 0.7% 1.2%
Fuel oil, kerosene etc 0.2% 0.1% 0.2%
All other fuels 0.3% 0.4% 1.6%
No fuel used 0.9% 2.2% 3%
Selected characteristics
Lacking complete plumbing 0.2% 0.4% 0.4%
Lacking complete kitchen 0.6% 0.8% 1.2%
No telephone service available 1.3% 0.8% 0.9%
Housing Value
What owner-occupied units are worth

Median home value

$1,104,900
owner-occupied units
Median value(USD)
Union City
$1,104,900
Alameda County
$1,090,100
California
$734,700

Housing Cost Burden

36.4%
of homeowners with a mortgage are cost-burdened
% Cost-Burdened Households
Owners with a mortgage
36.4%
Owners without a mortgage
15%
Renters
47%
Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs
Tenure, crowding, and utilities
Union City Alameda County California
Property value
Median Value $1,104,900 $1,090,100 $734,700
Under $100,000 2.7% 2.2% 4.2%
$100,000 - $200,000 4.2% 1.5% 2.7%
$200,000 - $300,000 1.7% 1.2% 4.3%
$300,000 - $500,000 4% 4.1% 17.1%
$500,000 - $1,000,000 28.4% 34% 42.1%
$1,000,000 and more 59% 56.9% 29.6%
Owner-occupied households
With a mortgage 66.8% 70.3% 67.4%
Without a mortgage 33.2% 29.7% 32.6%
Median monthly owner costs
With a mortgage $3,584 $3,810 $2,946
Without a mortgage $981 $1,000 $829
Gross rent
Median rent $2,713 $2,357 $2,036

Education Profile

How educated is the community and how education pays off

Adults with a college degree

45.1%
of adults 25+ with a bachelor's degree or higher
Union City 45.1%
Alameda County 52.2%
California 37.1%

Adults without a high school diploma

13.4%
of adults (25+) without a high school diploma
Union City 13.4%
Alameda County 11.1%
California 15.2%
School Enrollment
Who is enrolled in school and at what level

School enrollment

13,138
population (age 3+) enrolled in school
Nursery / Preschool
4.5%
K–12
65.7%
College / Undergraduate
23.6%
Graduate / Professional
6.2%

College-going rate (18-24 yr olds)

48.1%
of 18-24-year-olds in college or graduate school
Union City
48.1%
Alameda County
55%
California
46.8%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split
Population 3+ currently enrolled in a school
Union City Alameda County California
Total enrolled (age 3+) 13,138 390,903 9,917,839
Nursery / preschool 4.5% 6.4% 5%
K–12 65.7% 60.6% 64.9%
Kindergarten 5.1% 4.8% 4.9%
Elementary: Grades 1–4 17.4% 18.1% 18.7%
Elementary: Grades 5–8 22.1% 18% 19.9%
High School: Grades 9–12 21.1% 19.6% 21.5%
College or graduate school 29.8% 33.1% 30.1%
College, undergraduate 23.6% 24.5% 24.3%
Graduate, professional school 6.2% 8.5% 5.8%
College-going rate · 18-24 yr olds 48.1% 55% 46.8%
School type
Public school 83.6% 83% 85%
Private school 16.4% 17% 15%
Education Attainment by Level & Gender
What is the highest level of education completed among adults

Education attainment

51,182
population 25 years and over
Total adults (25+)
Less than 9th grade
7.7%
9th-12th, no diploma
5.7%
HS graduate
18.5%
Some college no degree
15.9%
Associates degree
7%
Bachelors degree
27.6%
Graduate or professional degree
17.5%

Attainment by gender

Male vs Female
Adults (25+) · Share within each education level
% male · % female
Less than 9th grade
36.9% · 63.1%
9th-12th, no diploma
48.2% · 51.8%
HS graduate
55% · 45%
Some college no degree
49.2% · 50.8%
Associates degree
45.4% · 54.6%
Bachelors degree
45.8% · 54.2%
Graduate or professional degree
53.1% · 46.9%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)
Highest credential completed · adults 25+
Union City Alameda County California
Population (25+) 51,182 1,192,437 27,073,960
Less than 9th grade 7.7% 6.5% 8.7%
9th–12th, no diploma 5.7% 4.6% 6.5%
High school diploma or GED 18.5% 15.4% 20.5%
Some college, no degree 15.9% 14.8% 19.3%
Associate's degree 7% 6.3% 7.9%
Bachelor's degree or higher 45.1% 52.2% 37.1%
Bachelor's degree 27.6% 28.8% 22.7%
Graduate or professional 17.5% 23.4% 14.4%
High School or higher 86.6% 88.8% 84.7%
Earnings by education level
percentage as applicable

Median Earnings

$73,084
Median earnings for adults 25+, by level
Less than HS graduate
$39,458
HS graduate
$47,638
Some college or associates
$54,791
Bachelors degree
$92,384
Graduate or professional degree
$130,778

Poverty Rate

4.3%
for ages 25+, with bachelors degree or higher
Less than HS graduate
14.4%
HS graduate
8.5%
Some college or associates
7%
Bachelors degree or higher
4.3%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)
Adults 25+
Union City Alameda County California
Median earnings
Population 25+, with earnings $73,084 $76,263 $56,395
Less than high school graduate $39,458 $35,494 $32,480
High school graduate (includes equivalency) $47,638 $44,606 $41,382
Some college or associate's degree $54,791 $56,022 $50,157
Bachelor's degree $92,384 $96,184 $80,933
Graduate or professional degree $130,778 $132,502 $111,188
Poverty rates
Less than high school graduate 14.4% 18.9% 20%
High school graduate (includes equivalency) 8.5% 13.3% 13.9%
Some college or associate's degree 7% 10% 10.1%
Bachelor's degree or higher 4.3% 4.1% 5%

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