Belle Fourche

County:: Butte County
County Seat:: No
Area (mi²):: 8.854
State:: South Dakota

Belle Fourche is a city located in Butte County, South Dakota. Belle Fourche has a 2025 population of 6,031. Belle Fourche is currently growing at a rate of 1.33% annually and its population has increased by 7.03% since the most recent census, which recorded a population of 5,635 in 2020.

The average household income in Belle Fourche is $83,066 with a poverty rate of 7.09%. The median age in Belle Fourche is 36.8 years: 34.5 years for males, and 38.8 years for females.

Demographics

The racial composition of Belle Fourche includes 90.52% White, and smaller percentages for other race, Native American, Asian, Native Hawaiian or Pacific Islander, Black or African American and multiracial populations.

Population by Race

White

Two or more races

Other race

Native American

Asian

Native Hawaiian or Pacific Islander

Black or African American

Race	Population	Percentage (of total)
White	5,197	90.52%
Two or more races	344	5.99%
Other race	102	1.78%
Native American	69	1.2%
Asian	18	0.31%
Native Hawaiian or Pacific Islander	11	0.19%
Black or African American	0	0%

Belle Fourche Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Belle Fourche's average per capita income is $40,425. Household income levels show a median of $59,920. The poverty rate stands at 7.09%.

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	$103,438	-
Families	$93,558	$115,970
Households	$59,920	$83,066
Non Families	$28,620	$38,250

$40,425

Average Income

$59,920

Median Household Income

7.09%

Poverty Rate