Overview
8,791
Total Population
38.2
Median age
50.81%
Female population %
96.8:100
Gender ratio (M:F)
25-29 years
Largest age group
59.3
Total dependency ratio
White
Largest racial group
514
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Thief River Falls's population is young compared to the rest of the country:
- The median age in Thief River Falls is 38.2, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Thief River Falls's population under 18 was 21.81%, compared to the 22.51% nationwide.
- Thief River Falls's elderly or the senior population (over 65 age) was 19.55% as compared to 16.04% nationwide.
- Of the total population in Thief River Falls, 17.68% were under the age of 15, 20.69% aged 15 to 29, 42.08% aged 30 to 64, 16.43% aged 65 to 84, and 3.13% were 85 years of age and older.

Read more about Thief River Falls, MN population by age ➔
Gender
There are 143 more females than males in Thief River Falls:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.81% females and 49.19% males in Thief River Falls, MN.
- The Thief River Falls, MN gender ratio is 96.8:100 i.e. 96.8 men to 100 women (0.968).
- For male population, the largest age group is 35-39 years with a population of 389.
- For the female population, the largest age group is 25-29 years with a population of 371.

Read more about Thief River Falls, MN population by gender ➔
Race / Ethnicity
Thief River Falls's population has become increasingly diverse:
- Racial distribution of Thief River Falls population: 92.47% are White, 1.98% are Black or African American, 1.27% are American Indian and Alaska Native, 0.52% are Asian, 0.50% are some other race and 3.25% are multiracial.
- Thief River Falls's racial breakdown clearly shows that there is an absolute majority of White population in the city.
- By ethnicity, 514 is Hispanic or Latino (of any race), and 8,277 (94.15% of the total population) is Non-Hispanic.
- The largest racial group in Thief River Falls is White with a population of 8,129 (92.47% of the total population).

Read more about Thief River Falls, MN population by race ➔
Year by year
Thief River Falls's population has not reached its peak yet and is showing a trend of further growth:
- The peak population was 8,903 in the year 2022
- From 2000 to 2010, Thief River Falls's population increased by 201 (2.38%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Thief River Falls's population increased by 192 (2.22%), 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, Thief River Falls's population was lowest in year 2001 at 8,341.

Read more about Thief River Falls, MN 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)