Union City, California Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Union City, California is 68,141 as of the 2023 American Community Survey, making it the 134th-largest city in California. The median household income is $137,194, the median home value is $1,058,200, and the median age is 42.1.
The population has declined 4.9% since 2010 (69,630 → 66,196).
68,141
Population
3513
People / sq mi
$137,194
Median Income
$1,058,200
Median Home Value
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Union City covers 19.4 sq mi of land at 3513 people per square mile.
About Union City, CA
Housing cost is the defining feature of Union City: the median home is valued at $1,058,200. With 68,141 residents, Union City is a city in California.
Households take in a median $137,194, comfortably above the US median of $78,538. The poverty rate, 4.5%, is on the lower side for US cities and below the national 12.4%. Home prices are steep, with the typical property valued at $1,058,200, with typical rent around $2,713.
About 45.3% of adults 25 and older have a bachelor’s degree, above the 35.0% national figure. About 17.7% of workers primarily work from home, above the national 14.0%, and the average commute runs about 33 minutes each way.
High housing values reframe the income picture in Union City — even solid earnings stretch less against home prices and rents at this level.
Union City city Population History (2010-2024)
The city of Union City city had a population of 69,630 in 2010 and 66,196 in 2024, a -4.9% growth over 14 years. The peak was 75,465 in 2016. Average annual growth rate: -0.34%.
66,196
Population (2024)
69,630
Population (2010)
75,465
Peak (2016)
-0.34%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 69,630 |
| 2011 | 70,597 |
| 2012 | 71,642 |
| 2013 | 72,552 |
| 2014 | 73,481 |
| 2015 | 74,343 |
| 2016 | 75,465 |
| 2017 | 75,227 |
| 2018 | 74,560 |
| 2019 | 74,107 |
| 2020 | 69,933 |
| 2021 | 68,118 |
| 2022 | 66,753 |
| 2023 | 66,212 |
| 2024 | 66,196 |
Race & Ethnicity
| White | 17.9% |
| Black or African American | 5.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.7% |
| Two or More Races | 0.0% |
Economy & Income
$137,194
Median Household Income
$56,020
Per Capita Income
4.5%
Poverty Rate
3.3%
Unemployment Rate
Housing
$1,058,200
Median Home Value
$2,713
Median Rent
67.0%
Owner-Occupied
Education
87.4%
High School+
45.3%
Bachelor's+
Commute
5.1%
Drive Alone
61.5%
Public Transit
17.7%
Work From Home
32.9 min
Avg Commute
Community Profile
7.9%
Foreign Born
38.8%
Non-English at Home
3.5%
Veterans
10.4%
With Disability
97.4%
Health Insurance
98.0%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 21.4% |
| Finance, Insurance & Real Estate | 19.3% |
| Manufacturing | 15.6% |
| Retail Trade | 7.7% |
| Education, Health Care & Social Services | 5.7% |
| Information | 4.3% |
| Transportation & Warehousing | 4.1% |
| Construction | 3.7% |
| Public Administration | 3.6% |
| Arts, Entertainment & Food Services | 3.5% |
| Agriculture & Mining | 0.1% |
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Frequently Asked Questions
Union City, California has a population of 68,141 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 134th-largest city in California.
The median household income in Union City, California is $137,194, with 4.5% of residents living below the federal poverty level.
The median home value in Union City, California is $1,058,200, with median monthly rent at $2,713 and a homeownership rate of 67.0%.
The median age in Union City, California is 42.1 years. The population is 50.4% male and 49.6% female.
The population has declined 4.9% since 2010 (69,630 → 66,196).
Union City city, CA Climate
Union City city, CA has an average annual temperature of 15.3°C (60°F) and receives about 442 mm of precipitation per year. The warmest month is August and the coldest is January. Figures are 1970–2000 climate normals.
15.3°C
Avg Temp
442
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 10° / 49° | 89 mm |
| February | 11° / 53° | 75 mm |
| March | 13° / 55° | 70 mm |
| April | 14° / 58° | 29 mm |
| May | 17° / 62° | 9 mm |
| June | 19° / 66° | 3 mm |
| July | 20° / 68° | 1 mm |
| August | 20° / 69° | 2 mm |
| September | 20° / 68° | 6 mm |
| October | 18° / 64° | 28 mm |
| November | 13° / 55° | 64 mm |
| December | 10° / 49° | 66 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Union City city, CA
The most comfortable months to visit Union City city, CA are typically August, July and September, when temperatures are mildest and rainfall is relatively low. The hottest month is August (around 27°C high). The coldest is January (near 5°C low). January is usually the wettest month.
Where to stay near Union City
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.