Overview
3,940
Total Population
36.5
Median age
57.03%
Female population %
75.3:100
Gender ratio (M:F)
15-19 years
Largest age group
58.2
Total dependency ratio
White
Largest racial group
3,923
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Sullivan City's population is young compared to the rest of the country:
- The median age in Sullivan City is 36.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Sullivan City's population under 18 was 28.40%, compared to the 22.51% nationwide.
- Sullivan City's elderly or the senior population (over 65 age) was 12.92% as compared to 16.04% nationwide.
- Of the total population in Sullivan City, 23.88% were under the age of 15, 21.70% aged 15 to 29, 41.50% aged 30 to 64, 12.21% aged 65 to 84, and 0.71% were 85 years of age and older.

Read more about Sullivan City, TX population by age ➔
Gender
There are 554 more females than males in Sullivan City:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 57.03% females and 42.97% males in Sullivan City, TX.
- The Sullivan City, TX gender ratio is 75.3:100 i.e. 75.3 men to 100 women (0.753).
- For male population, the largest age group is 45-49 years with a population of 232.
- For the female population, the largest age group is 10-14 years with a population of 304.

Read more about Sullivan City, TX population by gender ➔
Race / Ethnicity
Sullivan City's population is not that diverse:
- Racial distribution of Sullivan City population: 70.20% are White, 14.90% are some other race and 14.90% are multiracial.
- Sullivan City's racial breakdown clearly shows that there is an absolute majority of White population in the city.
- By ethnicity, 3,923 is Hispanic or Latino (of any race), and 17 (0.43% of the total population) is Non-Hispanic.
- The largest racial group in Sullivan City is White with a population of 2,766 (70.20% of the total population).

Read more about Sullivan City, TX population by race ➔
Year by year
Sullivan City's population has already reached its peak and is showing a trend of decline:
- The peak population was 4,512 in the year 2009
- From 2000 to 2010, Sullivan City's population increased by 23 (0.57%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Sullivan City's population decreased by 128 (3.18%), 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, Sullivan City's population was lowest in year 2021 at 3,888.

Read more about Sullivan City, 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)