Thief River Falls Flag

Thief River Falls

County Seat:
Yes
Area (mi²):
6.003
State:
Minnesota

Thief River Falls is a city located in Pennington County, Minnesota. Thief River Falls has a 2026 population of 8,747. It is also the county seat of Pennington County. Thief River Falls is currently declining at a rate of -0.18% annually and its population has decreased by -1.07% since the most recent census, which recorded a population of 8,842 in 2020.

The median household income in Thief River Falls is $71,144 with a poverty rate of 12.16%. The median age in Thief River Falls is 37.8 years: 36.8 years for males, and 39.8 years for females. For every 100 females there are 97.2 males.

8.7K
Total Population
1,457
Density (mi²)
-16 -0.18%
Growth

Thief River Falls Population

Thief River Falls Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20268,747-16-0.18%
20258,763-16-0.18%
20248,779-56-0.63%
20238,835-67-0.75%
20228,9021111.26%
20218,791-51-0.58%
20208,842-24-0.27%
20198,799-1-0.01%
20188,800-12-0.14%
20178,81270.08%
20168,805320.36%
20158,773740.85%
20148,699-49-0.56%
20138,748120.14%
20128,736340.39%
20118,702610.71%
20108,641680.79%
20008,4104004.99%
19908,010-1,095-12.03%
19809,1054875.65%
19708,6181,46720.51%
19607,1512253.25%
19506,92690715.07%
19406,0191,75141.03%
19304,268-417-8.9%
19204,68597126.14%
19103,71400%

Median Age

Overall: 37.8 years
Female: 39.8 years
Male: 36.8 years

Thief River Falls Adults

There are 7,107 adults, (1,733 of whom are seniors) in Thief River Falls.

Sex Ratio

Female: 4,474 (50.7%)
Male: 4,349 (49.3%)

Demographics

The racial composition of Thief River Falls includes 86% White, 3.15% other race, and smaller percentages for Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White7,58886%
Two or more races6577.45%
Other race2783.15%
Asian1561.77%
Black or African American1001.13%
Native American360.41%
Native Hawaiian or Pacific Islander80.09%
Race
Population ↓
Percentage (of total)
Other race2452.78%
Two or more races2282.58%
White830.94%
Black or African American190.22%
Race
Population ↓
Percentage (of total)
White7,50585.06%
Two or more races4294.86%
Asian1561.77%
Black or African American810.92%
Native American360.41%
Other race330.37%
Native Hawaiian or Pacific Islander80.09%

Thief River Falls Marital Status

Economics and Income Statistics

Thief River Falls ' average per capita income is $49,901. Household income levels show a median of $71,144. The poverty rate stands at 12.16%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$113,255-
Families$105,825$117,578
Households$71,144$86,764
Non Families$37,409$50,521

$49,901

Average Income

$71,144

Median Household Income

12.16%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)