Union, Missouri demographics

Union, MO demographics: median age 33.3; 23.7% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Union city, Missouri · Incorporated city · GEOID 2974626. The survey estimates a population of 12,781 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Union is 33.3 years, with a 90% margin of error of 2.6 years. There are 4,990 households (±233). Age and household distributions show how these totals are composed; they do not establish which neighborhood suits a particular person.

Every count and share is an estimate. “±” is a 90% margin of error (MOE); pp means percentage points. Derived shares use the category count divided by the named universe. Aggregated category MOEs and percentage MOEs are approximate. A margin larger than half its estimate is flagged as low precision. Blank source uncertainty is shown as unavailable, never zero.

Age distribution and sex

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe City estimate ± MOE State estimate ± MOE U.S. estimate ± MOE
Median age Total population · years 33.3 ±2.6 39.0 ±0.2 38.9 ±0.1
Age groups · B01001 · ACS 2020–2024 Total population: 12,781
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Under 18 3,371 ±459 26.4% ±3.6 pp 22.3% 22.0%
18–34 3,333 ±453 26.1% ±3.5 pp 22.3% 22.8%
35–64 4,492 ±455 35.1% ±3.6 pp 37.5% 38.0%
65 and older 1,585 ±223 12.4% ±1.7 pp 17.9% 17.2%
Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 12,781
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Male 6,613 ±293 51.7% ±2.3 pp 49.3% 49.5%
Female 6,168 ±287 48.3% ±2.2 pp 50.7% 50.5%

The age groups are mutually exclusive and cover the entire population. The sex categories follow this ACS table’s published classification; they are not a survey of gender identity.

Race and Hispanic origin

Race · B02001 · ACS 2020–2024 Total population: 12,781
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
White alone 11,116 ±512 87.0% ±4.0 pp 77.5% 61.0%
Black or African American alone 284 ±179 · low precision 2.2% ±1.4 pp · low precision 11.0% 12.2%
American Indian and Alaska Native alone 3 ±6 · low precision 0.0% ±0.0 pp · low precision 0.3% 0.9%
Asian alone 176 ±104 · low precision 1.4% ±0.8 pp · low precision 2.1% 6.0%
Native Hawaiian and Other Pacific Islander alone 0 ±19 · low precision 0.0% ±0.1 pp · low precision 0.1% 0.2%
Some other race alone 36 ±51 · low precision 0.3% ±0.4 pp · low precision 1.9% 7.1%
Two or more races 1,166 ±478 9.1% ±3.7 pp 7.1% 12.6%
Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 12,781
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Not Hispanic or Latino 12,467 ±145 97.5% ±1.1 pp 94.8% 80.7%
Hispanic or Latino 314 ±137 2.5% ±1.1 pp 5.2% 19.3%

Hispanic origin and race are separate questions. People of Hispanic or Latino origin may be of any race and appear in both tables. Do not add the Hispanic share to race shares. Race alone and two-or-more-race groups are the mutually exclusive categories of the race table.

Household types, children and living alone

Household types · B11001 · ACS 2020–2024 Households: 4,990
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Married-couple family 2,062 ±209 41.3% ±3.7 pp 46.5% 46.9%
Other family: male householder, no spouse present 348 ±155 7.0% ±3.1 pp 4.6% 5.1%
Other family: female householder, no spouse present 712 ±177 14.3% ±3.5 pp 11.0% 12.2%
Nonfamily: householder living alone 1,414 ±290 28.3% ±5.7 pp 31.1% 28.7%
Nonfamily: householder not living alone 454 ±176 9.1% ±3.5 pp 6.7% 7.0%
Households with children · B11005 · ACS 2020–2024 Households: 4,990
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Households with people under 18 1,820 ±211 36.5% ±3.9 pp 28.5% 29.5%
Households without people under 18 3,170 ±325 63.5% ±5.8 pp 71.5% 70.5%
Household size · B11016 · ACS 2020–2024 Households: 4,990
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
One-person nonfamily households 1,414 ±290 28.3% ±5.7 pp 31.1% 28.7%
Two-person households 1,496 ±229 30.0% ±4.4 pp 35.0% 33.8%
Three-person households 774 ±200 15.5% ±3.9 pp 14.1% 15.3%
Four-person households 811 ±217 16.3% ±4.3 pp 11.6% 12.6%
Five-person households 367 ±179 7.4% ±3.6 pp 5.2% 5.9%
Six-person households 78 ±58 · low precision 1.6% ±1.2 pp · low precision 1.9% 2.2%
Seven or more people 50 ±50 · low precision 1.0% ±1.0 pp · low precision 1.1% 1.4%

A family household contains related people under the Census definition. A nonfamily household can contain one person or unrelated people sharing a home. Households with children can also appear in the household-type and size tables, so those tables must not be added together. Household estimates exclude people living in group quarters from the household universe.

Nativity and languages spoken at home

Nativity · B05002 · ACS 2020–2024 Total population: 12,781
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Native 12,602 ±108 98.6% ±0.8 pp 95.5% 85.9%
Foreign born 179 ±97 · low precision 1.4% ±0.8 pp · low precision 4.5% 14.1%
Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 11,622
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
English only 11,325 ±326 97.4% ±1.0 pp 93.3% 77.7%
Spanish 61 ±65 · low precision 0.5% ±0.6 pp · low precision 2.9% 13.6%
French, Haitian, or Cajun 0 ±19 · low precision 0.0% ±0.2 pp · low precision 0.3% 0.7%
German or other West Germanic 78 ±61 · low precision 0.7% ±0.5 pp · low precision 0.5% 0.5%
Russian, Polish, or other Slavic 15 ±24 · low precision 0.1% ±0.2 pp · low precision 0.5% 0.7%
Other Indo-European 115 ±82 · low precision 1.0% ±0.7 pp · low precision 0.6% 2.0%
Korean 12 ±21 · low precision 0.1% ±0.2 pp · low precision 0.1% 0.3%
Chinese, including Mandarin and Cantonese 16 ±23 · low precision 0.1% ±0.2 pp · low precision 0.4% 1.1%
Vietnamese 0 ±19 · low precision 0.0% ±0.2 pp · low precision 0.2% 0.5%
Tagalog, including Filipino 0 ±19 · low precision 0.0% ±0.2 pp · low precision 0.2% 0.6%
Other Asian and Pacific Island 0 ±19 · low precision 0.0% ±0.2 pp · low precision 0.5% 1.1%
Arabic 0 ±19 · low precision 0.0% ±0.2 pp · low precision 0.2% 0.5%
Other and unspecified 0 ±19 · low precision 0.0% ±0.2 pp · low precision 0.4% 0.8%

Foreign born means not a U.S. citizen at birth; it includes naturalized citizens. Language categories describe speech at home among people age five and older. A language other than English at home does not establish that someone cannot speak English. This city page uses the published C16001 summary categories because the more detailed B16001 table does not provide these city records in this release.

Educational attainment

Highest completed education · B15003 · ACS 2020–2024 Population age 25 and older: 8,317
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Less than high school graduate 741 ±209 8.9% ±2.5 pp 8.1% 10.4%
High school graduate or equivalency 2,786 ±460 33.5% ±5.3 pp 30.2% 26.0%
Some college, no degree 1,943 ±332 23.4% ±3.8 pp 20.8% 19.1%
Associate’s degree 874 ±218 10.5% ±2.6 pp 8.4% 8.8%
Bachelor’s degree 1,456 ±288 17.5% ±3.4 pp 19.8% 21.6%
Graduate or professional degree 517 ±200 6.2% ±2.4 pp 12.6% 14.1%

The denominator excludes residents under 25. Each person is counted in the highest attainment category they completed. This table does not measure the quality of local schools or the education level of every current student.

Residence one year earlier

Geographic mobility · B07003 · ACS 2020–2024 Population age 1 and older: 12,504
Category Count ± MOE Share ± MOE (pp) Missouri U.S.
Same house 10,564 ±661 84.5% ±5.2 pp 87.4% 87.7%
Moved within same county 1,060 ±402 8.5% ±3.2 pp 6.2% 6.3%
Moved from a different county in the same state 423 ±153 3.4% ±1.2 pp 3.6% 3.1%
Moved from a different state 439 ±441 · low precision 3.5% ±3.5 pp · low precision 2.5% 2.3%
Moved from abroad 18 ±31 · low precision 0.1% ±0.2 pp · low precision 0.4% 0.6%

These are respondents’ residence patterns one year before their survey response, pooled across the five-year window. They are not a net migration count for 2025. A person can move to a different house within the same city or county; moves within the same county should not automatically be interpreted as new arrivals to the city.

Health insurance, internet access and veterans

7.8% of Union residents (±2.7 percentage points) had no health insurance coverage when surveyed, compared with 8.8% in Missouri and 8.4% nationally. 94.5% of households subscribe to broadband of any type, including cellular data plans. A subscription is not the same as available service: the FCC National Broadband Map shows providers at a specific address.

City, state and U.S. shares · ACS 2020–2024
Measure Union Missouri U.S. Compared with Missouri
People without health insurance Civilian noninstitutionalized population 7.8% ±2.7 pp 8.8% 8.4% Not statistically different
Households with a broadband subscription Households 94.5% ±0.8 pp 89.3% 91.0% Higher
Veterans Civilian population age 18 and older 9.0% ±2.1 pp 7.3% 6.2% Not statistically different

Reading and reusing the estimates

The Census table links above lead to the original detailed tables. Counts, source universes and uncertainty are retained in the source observation download for Union . Compare these figures with the same survey window; do not compare one city’s five-year estimate with another city’s annual estimate as though they measured the same period. For methods, see uncertainty and denominator calculations.

Read Union housing and cost context or return to the city profile.

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