Overview
511
Total Population
27.0
Median age
58.12%
Female population %
72.1:100
Gender ratio (M:F)
20-24 years
Largest age group
73.2
Total dependency ratio
White
Largest racial group
4
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Union Star's population is young compared to the rest of the country:
- The median age in Union Star is 27.0, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Union Star's population under 18 was 28.18%, compared to the 22.51% nationwide.
- Union Star's elderly or the senior population (over 65 age) was 17.61% as compared to 16.04% nationwide.
- Of the total population in Union Star, 24.66% were under the age of 15, 31.12% aged 15 to 29, 26.61% aged 30 to 64, 11.94% aged 65 to 84, and 5.68% were 85 years of age and older.

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Gender
There are 83 more females than males in Union Star:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 58.12% females and 41.88% males in Union Star, MO.
- The Union Star, MO gender ratio is 72.1:100 i.e. 72.1 men to 100 women (0.721).
- For male population, the largest age group is 20-24 years with a population of 32.
- For the female population, the largest age group is 20-24 years with a population of 59.

Read more about Union Star, MO population by gender ➔
Race / Ethnicity
Union Star's population is moderately diverse:
- Racial distribution of Union Star population: 92.56% are White, 0.20% are American Indian and Alaska Native, 5.09% are Asian, 0.39% are some other race and 1.76% are multiracial.
- Union Star's racial breakdown clearly shows that there is an absolute majority of White population in the town.
- By ethnicity, 4 is Hispanic or Latino (of any race), and 471 (92.17% of the total population) is Non-Hispanic.
- The largest racial group in Union Star is White with a population of 473 (92.56% of the total population).

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Year by year
Union Star's population has already reached its peak and is showing a trend of decline:
- The peak population was 438 in the year 2010
- From 2000 to 2010, Union Star's population increased by 5 (1.15%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Union Star's population decreased by 57 (13.01%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
- Between the year 2000 and 2022, Union Star's population was lowest in year 2020 at 381.

Read more about Union Star, MO population by year ➔
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
- U.S. Census Bureau Population Estimates Population Estimates Program (PEP)