Union, Missouri Demographics & Population 2026
During the 2020–2024 ACS period, Union, Missouri had a total population of 12,781, the 73rd largest city in Missouri, with a median household income of $73,435, which is 4% higher than the state average. The poverty rate is 8.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Union Quick Facts
How Union 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 | 12,560 | 12,781 | +1.8% |
| Median household income | $71,760 | $73,435 | +2.3% |
| Median home value | $199,100 | $205,200 | +3.1% |
How Union 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 less diverse community where one racial or ethnic group represents a large majority.
State average: 40 | National average: 61
Education
Educational Attainment (Adults 25+)
Union Rankings in Missouri
Explore Missouri Rankings
Other Cities in Franklin County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Washington | 15,130 | $79,173 | 7.9% | $231,800 |
| Sullivan | 6,310 | $63,370 | 11.5% | $163,200 |
| St. Clair | 4,789 | $41,820 | 15.0% | $157,700 |
| New Haven | 3,302 | $71,306 | 10.1% | $192,400 |
| Gray Summit | 2,991 | $65,667 | 4.2% | $170,500 |
| Villa Ridge | 2,835 | $73,826 | 15.9% | $166,600 |
| Gerald | 1,368 | $61,458 | 14.5% | $150,800 |
| Lake St. Clair | 872 | $81,397 | 0.0% | $227,800 |
| Parkway | 624 | $44,479 | 15.5% | $192,900 |
| Oak Grove Village | 347 | $41,324 | 31.5% | $152,500 |
Cities Similar to Union
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Festus | 13,201 | $73,532 | $223,600 | 24.4% | 17.1% |
| Webb City | 13,221 | $65,469 | $169,100 | 26.7% | 20.5% |
| Troy | 13,947 | $79,012 | $226,500 | 14.7% | 13.6% |
| Bridgeton | 11,369 | $72,005 | $237,700 | 36.0% | 11.5% |
| Neosho | 13,224 | $57,891 | $163,400 | 21.7% | 15.2% |
Population Overview
Union is a small city located in Missouri, within Franklin County. The total population is 12,781. It ranks as the 73rd most populous out of 1,062 Census-designated places in Missouri.
Age Demographics
The median age in Union is 33.3 years. This is 15% lower than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Union is $73,435. This is 4% higher than the state median of $70,702. It is also 9% lower than the national median of $80,734. The poverty rate stands at 8.2%. This is 35% lower than the state poverty rate of 12.6%. The unemployment rate is 3.7%. This is 8% lower than the state rate of 4.0%. The median home value is $205,200. Housing costs are 11% lower than the state median of $230,300. With a home-value-to-income ratio of just 2.8x, Union is one of the most affordable housing markets in the area. 60.6% of occupied housing units are owner-occupied. This homeownership rate is 11% lower than the state average of 68.1%.
Race & Ethnicity
Union has a predominantly White (non-Hispanic) population, comprising 86.5% of all residents. Hispanic or Latino residents account for 2.5%. The Black or African American population (2.2%) is well below the state average of 10.9%. The Hispanic or Latino population (2.5%) is well below the state average of 5.2%.
Education
23.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 27% lower than the state rate of 32.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.1%.
Data Sources & Methodology
All demographic data for Union, Missouri 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 Missouri state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,062 Census-designated places in Missouri. 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, Missouri?
Union, Missouri has a population of 12,781 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Union, MO?
The median household income in Union is $73,435, which is 9% lower than the national median of $80,734.
What is the poverty rate in Union, MO?
The poverty rate in Union is 8.2%. This means approximately 1,009 residents live below the federal poverty line.
What is the racial makeup of Union, Missouri?
Union's population is 86.5% White, 2.2% Black, 2.5% Hispanic/Latino, and 1.3% Asian.
What is the median home value in Union, MO?
The median home value in Union is $205,200. The home-value-to-income ratio is 2.8x.
How educated is Union, Missouri?
23.7% of adults (25+) in Union hold a bachelor's degree or higher, and 6.2% hold a graduate or professional degree.