Overview
          2,940
                  Total Population
                45.0
                  Median age
                52.48%
                  Female population %
                90.5:100
                  Gender ratio (M:F)
                55-59 years
                  Largest age group
                73.2
                  Total dependency ratio
                White
                  Largest racial group
                478
                  Hispanic population
                Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Seymour's population is old compared to the rest of the country:
- The median age in Seymour is 45.0, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
 - Seymour's population under 18 was 24.59%, compared to the 22.51% nationwide.
 - Seymour's elderly or the senior population (over 65 age) was 22.04% as compared to 16.04% nationwide.
 - Of the total population in Seymour, 20.24% were under the age of 15, 12.82% aged 15 to 29, 44.90% aged 30 to 64, 19.97% aged 65 to 84, and 2.07% were 85 years of age and older.
 
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Gender
There are 146 more females than males in Seymour:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 52.48% females and 47.52% males in Seymour, TX.
 - The Seymour, TX gender ratio is 90.5:100 i.e. 90.5 men to 100 women (0.905).
 - For male population, the largest age group is 10-14 years with a population of 155.
 - For the female population, the largest age group is 55-59 years with a population of 178.
 
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Race / Ethnicity
Seymour's population has become increasingly diverse:
- Racial distribution of Seymour population: 84.29% are White, 4.90% are Black or African American, 0.14% are American Indian and Alaska Native, 0.54% are Native Hawaiian and other Pacific Islander, 2.59% are some other race and 7.55% are multiracial.
 - Seymour's racial breakdown clearly shows that there is an absolute majority of White population in the city.
 - By ethnicity, 478 is Hispanic or Latino (of any race), and 2,462 (83.74% of the total population) is Non-Hispanic.
 - The largest racial group in Seymour is White with a population of 2,478 (84.29% of the total population).
 
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Year by year
Seymour's population has already reached its peak and is showing a trend of decline:
- The peak population was 2,979 in the year 2000
 - From 2000 to 2010, Seymour's population decreased by 258 (8.66%), as compared to the national growth of 9.63%.
 - From 2010 to 2020, Seymour's population decreased by 137 (5.03%), 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, Seymour's population was lowest in year 2019 at 2,565.
 
Read more about Seymour, TX 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)