Union City, California Demographics & Population 2026
During the 2020–2024 ACS period, Union City, California had a total population of 67,464, the 136th largest city in California, with a median household income of $133,715, which is 35% higher than the state average. The poverty rate is 7.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 35% above the state average — one of the wealthiest communities in California.
- Housing affordability is a challenge — homes cost 8.3x the median household income.
Union City Quick Facts
How Union City Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 68,141 | 67,464 | -1.0% |
| Median household income | $137,194 | $133,715 | -2.5% |
| Median home value | $1,058,200 | $1,104,900 | +4.4% |
How Union City Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 70 | National average: 61
Education
Educational Attainment (Adults 25+)
Union City Rankings in California
Explore California Rankings
Other Cities in Alameda County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Oakland | 439,418 | $101,600 | 13.4% | $929,900 |
| Fremont | 228,295 | $181,506 | 5.2% | $1,403,800 |
| Hayward | 158,801 | $113,318 | 9.6% | $854,400 |
| Berkeley | 120,257 | $108,092 | 17.3% | $1,413,900 |
| San Leandro | 87,826 | $101,420 | 8.3% | $844,200 |
| Livermore | 85,522 | $160,775 | 4.9% | $1,105,600 |
| Alameda | 77,238 | $137,697 | 7.2% | $1,235,700 |
| Pleasanton | 76,960 | $190,124 | 5.3% | $1,537,100 |
| Dublin | 70,803 | $214,385 | 4.5% | $1,317,100 |
| Castro Valley | 65,001 | $142,779 | 6.7% | $1,104,600 |
Cities Similar to Union City
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Walnut Creek | 70,088 | $130,432 | $1,057,300 | 70.4% | 6.4% |
| South San Francisco | 64,305 | $136,578 | $1,188,800 | 40.8% | 6.7% |
| Brentwood | 65,208 | $142,494 | $836,600 | 39.3% | 8.3% |
| Castro Valley | 65,001 | $142,779 | $1,104,600 | 44.5% | 6.7% |
| Laguna Niguel | 64,139 | $140,452 | $1,190,900 | 59.8% | 6.4% |
Population Overview
Union City is a mid-sized community located in California, within Alameda County. The total population is 67,464. It ranks as the 136th most populous out of 1,570 Census-designated places in California.
Age Demographics
The median age in Union City is 43.0 years. This is 13% higher than the state median of 37.9 years.
Economy, Income & Housing
The median household income in Union City is $133,715. This is 35% higher than the state median of $99,122. It is also 66% higher than the national median of $80,734. The poverty rate stands at 7.2%. This is 40% lower than the state poverty rate of 12.0%. The unemployment rate is 5.3%. This is 20% lower than the state rate of 6.6%. The median home value is $1,104,900. Housing costs are 50% higher than the state median of $734,700. The home-value-to-income ratio of 8.3x suggests that housing affordability is a significant concern for many residents. 64.7% of occupied housing units are owner-occupied. This homeownership rate is 16% higher than the state average of 55.9%.
Race & Ethnicity
The largest racial or ethnic group in Union City is Asian, making up 56.9% of the population. Hispanic or Latino residents account for 20.2%. The White (non-Hispanic) population (13.7%) is well below the state average of 33.8%. The Asian population is significantly higher than the state average (56.9% vs 15.3%).
Education
45.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 22% higher than the state rate of 37.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 86.6%. Notably, 17.5% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Union City, California is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,570 Census-designated places in California. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Union City, California?
Union City, California has a population of 67,464 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Union City, CA?
The median household income in Union City is $133,715, which is 66% higher than the national median of $80,734.
What is the poverty rate in Union City, CA?
The poverty rate in Union City is 7.2%. This means approximately 4,847 residents live below the federal poverty line.
What is the racial makeup of Union City, California?
Union City's population is 13.7% White, 4.4% Black, 20.2% Hispanic/Latino, and 56.9% Asian.
What is the median home value in Union City, CA?
The median home value in Union City is $1,104,900. The home-value-to-income ratio is 8.3x.
How educated is Union City, California?
45.1% of adults (25+) in Union City hold a bachelor's degree or higher, and 17.5% hold a graduate or professional degree.