Overview
          11,119
                  Total Population
                37.9
                  Median age
                54.11%
                  Female population %
                84.8:100
                  Gender ratio (M:F)
                40-44 years
                  Largest age group
                57.9
                  Total dependency ratio
                White
                  Largest racial group
                726
                  Hispanic population
                Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Union City's population is young compared to the rest of the country:
- The median age in Union City is 37.9, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
 - Union City's population under 18 was 24.29%, compared to the 22.51% nationwide.
 - Union City's elderly or the senior population (over 65 age) was 17.60% as compared to 16.04% nationwide.
 - Of the total population in Union City, 19.05% were under the age of 15, 21.50% aged 15 to 29, 41.85% aged 30 to 64, 14.86% aged 65 to 84, and 2.74% were 85 years of age and older.
 
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Gender
There are 915 more females than males in Union City:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 54.11% females and 45.89% males in Union City, TN.
 - The Union City, TN gender ratio is 84.8:100 i.e. 84.8 men to 100 women (0.848).
 - For male population, the largest age group is 40-44 years with a population of 503.
 - For the female population, the largest age group is 20-24 years with a population of 475.
 
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Race / Ethnicity
Union City's population has become increasingly diverse:
- Racial distribution of Union City population: 67.54% are White, 24.19% are Black or African American, 0.11% are American Indian and Alaska Native, 0.23% are Asian, 2.96% are some other race and 4.96% are multiracial.
 - Union City's racial breakdown clearly shows that there is an absolute majority of White population in the city.
 - By ethnicity, 726 is Hispanic or Latino (of any race), and 10,393 (93.47% of the total population) is Non-Hispanic.
 - The largest racial group in Union City is White with a population of 7,51 (67.54% of the total population).
 
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Year by year
Union City's population has already reached its peak and is showing a trend of decline:
- The peak population was 11,156 in the year 2020
 - From 2000 to 2010, Union City's population decreased by 64 (0.58%), as compared to the national growth of 9.63%.
 - From 2010 to 2020, Union City's population increased by 252 (2.31%), 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 City's population was lowest in year 2019 at 10,387.
 
Read more about Union City, TN 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)