Belle Fourche Flag

Belle Fourche

County:
Butte County
County Seat:
Yes
Area (mi²):
9.075
State:
South Dakota

Belle Fourche is a city located in Butte County, South Dakota. Belle Fourche has a 2026 population of 5,958. It is also the county seat of Butte County. Belle Fourche is currently growing at a rate of 0.88% annually and its population has increased by 5.49% since the most recent census, which recorded a population of 5,648 in 2020.

The median household income in Belle Fourche is $65,071 with a poverty rate of 10.57%. The median age in Belle Fourche is 38.3 years: 35 years for males, and 40.2 years for females. For every 100 females there are 96.9 males.

6K
Total Population
657
Density (mi²)
52 0.88%
Growth

Belle Fourche Population

Belle Fourche Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20265,958520.88%
20255,906510.87%
20245,855-32-0.54%
20235,887190.32%
20225,868971.68%
20215,7711472.61%
20205,648-34-0.6%
20195,682771.37%
20185,605561.01%
20175,549-27-0.48%
20165,576-58-1.03%
20155,634-28-0.49%
20145,662-19-0.33%
20135,681360.64%
20125,645-60-1.05%
20115,705911.62%
20105,614200.36%
20004,5652305.31%
19904,335-357-7.61%
19804,69245610.76%
19704,2361493.65%
19604,08754715.45%
19503,54000%

Median Age

Overall: 38.3 years
Female: 40.2 years
Male: 35 years

Belle Fourche Adults

There are 4,404 adults, (1,117 of whom are seniors) in Belle Fourche.

Sex Ratio

Female: 2,948 (50.8%)
Male: 2,856 (49.2%)

Demographics

The racial composition of Belle Fourche includes 91.13% White, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White5,28991.13%
Two or more races3926.75%
Other race711.22%
Native American360.62%
Native Hawaiian or Pacific Islander160.28%
Race
Population ↓
Percentage (of total)
Two or more races1462.52%
White931.6%
Other race621.07%
Race
Population ↓
Percentage (of total)
White5,19689.52%
Two or more races2464.24%
Native American360.62%
Native Hawaiian or Pacific Islander160.28%
Other race90.16%

Belle Fourche Marital Status

Economics and Income Statistics

Belle Fourche 's average per capita income is $41,991. Household income levels show a median of $65,071. The poverty rate stands at 10.57%.

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$107,946-
Families$87,411$115,549
Households$65,071$88,227
Non Families$25,787$39,522

$41,991

Average Income

$65,071

Median Household Income

10.57%

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)