Demographics of Belle Fourche city, South Dakota

Belle Fourche city, South Dakota had 5,791 people on July 1, 2025, by the Census Bureau’s estimate: +139 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Belle Fourche city, in four figures

5,791
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 5,804 ±18.; +2.5%
Change since July 2020: +139 people.; 38.3 ±3.8
Median age: ACS 2020–⁠2024.; $65,071 ±$22,044
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Belle Fourche city, South Dakota's population grew 2.5% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Belle Fourche city, South Dakota's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

Source: The Census Bureau

About this chart

The figures

Belle Fourche city, South Dakota's population grew 2.5% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Belle Fourche city, South Dakota's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	5,652	100.0	100.0
2021	5,774	102.2	100.2
2022	5,872	103.9	100.7
2023	5,881	104.1	101.6
2024	5,859	103.7	102.5
2025	5,791	102.5	103.1

Population of Belle Fourche city, South Dakota on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	5,652	—
2021	5,774	+122
2022	5,872	+98
2023	5,881	+9
2024	5,859	−22
2025	5,791	−68

Age, 2020–2024

The median age is 38.3 ±3.8: for men 35.0 ±4.4 and for women 40.2 ±5.5. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

2 more columns on a wider screen

People in Belle Fourche city by age, ACS 2020–2024
Age	People	Share	South Dakota	United States
Under 5	440 ±94	7.6% ±1.6	6.3% ±0.1	5.6% ±<0.1
5 to 17	960 ±176	16.5% ±3.0	17.9% ±0.2	16.3% ±<0.1
18 to 24	528 ±162	9.1% ±2.8	9.3% ±0.4	9.1% ±<0.1
25 to 44	1,407 ±187	24.2% ±3.2	25.2% ±0.2	26.9% ±<0.1
45 to 64	1,352 ±223	23.3% ±3.8	23.3% ±0.2	24.8% ±<0.1
65 and over	1,117 ±213	19.2% ±3.7	18.0% ±0.3	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $65,071 ±$22,044, and income per person $38,513 ±$6,677, in 2024 dollars. The median is $75,081 ±$888 in South Dakota and $80,734 ±$166 in the United States.

Households by income

2 more columns on a wider screen

Households in Belle Fourche city by income, ACS 2020–2024
Household income	Households	Share	South Dakota	United States
Under $25,000	535 ±185	21.8% ±7.4	14.0% ±0.4	14.6% ±<0.1
$25,000 to $49,999	568 ±184	23.1% ±7.3	18.5% ±0.5	16.7% ±<0.1
$50,000 to $74,999	264 ±94	10.8% ±3.8	17.4% ±0.4	15.5% ±<0.1
$75,000 to $99,999	385 ±131	15.7% ±5.2	14.6% ±0.4	12.6% ±<0.1
$100,000 to $149,999	433 ±153	17.6% ±6.1	18.9% ±0.5	17.5% ±<0.1
$150,000 to $199,999	27 to 153	1.1% to 6.2%	8.5% ±0.3	9.6% ±<0.1
$200,000 or more	180 ±85	7.3% ±3.4	8.1% ±0.4	13.4% ±0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

2 more columns on a wider screen

Poverty rate in Belle Fourche city by age, ACS 2020–2024
Age	Below poverty	Rate	South Dakota	United States
All ages	603 ±251	10.6% ±4.4	11.9% ±0.4	12.5% ±0.1
Under 18	63 to 245	4.8% to 17.2%	14.3% ±0.6	16.1% ±0.1
18 to 59	150 to 452	10.0% ±5.0	11.8% ±0.5	11.6% ±0.1
60 and over	67 to 229	5.4% to 17.2%	9.7% ±0.4	11.0% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Housing, 2020–2024

1 more column on a wider screen

Housing in Belle Fourche city, ACS 2020–2024
Measure	Belle Fourche city	South Dakota	United States
Housing units	2,625 ±140	408,584 ±422	143,775,355 ±10,234
Occupied	93.5% ±3.6	89.5% ±0.4	89.9% ±0.1
Vacant	1.8% to 11.1%	10.5% ±0.4	10.1% ±0.1
Owner occupied	65.5% ±5.1	68.6% ±0.5	65.2% ±0.3
Renter occupied	34.5% ±6.0	31.4% ±0.5	34.8% ±0.1
Median home value	$222,500 ±$31,779	$257,400 ±$3,051	$332,700 ±$236
Median gross rent	$983 ±$94	$946 ±$11	$1,413 ±$2
Median year built	1978 ±5	1980 ±1	1980 ±1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

2 more columns on a wider screen

People in Belle Fourche city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	South Dakota	United States
Hispanic or Latino	301 ±94	5.2% ±1.6	4.8% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	5,196 ±157	89.5% ±2.7	79.8% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	0 to 15	0% to 0.3%	2.1% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 15	0% to 0.3%	1.4% ±0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 82	0% to 1.4%	7.1% ±0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 44	0% to 0.8%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 24	0% to 0.4%	0.3% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	117 to 375	2.0% to 6.5%	4.4% ±0.2	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

2 more columns on a wider screen

People in Belle Fourche city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	South Dakota	United States
Born in the state	3,127 ±296	53.9% ±5.1	62.4% ±0.4	57.3% ±<0.1
Born in another state	2,531 ±329	43.6% ±5.7	32.9% ±0.4	26.9% ±<0.1
Born a citizen outside the states	41 to 237	0.7% to 4.1%	0.7% ±0.1	1.7% ±<0.1
Born abroad	0 to 20	0% to 0.3%	4.0% ±0.2	14.1% ±<0.1
Naturalized citizens	0 to 15	0% to 0.3%	1.7% ±0.1	7.4% ±<0.1
Not citizens	0 to 20	0% to 0.3%	2.3% ±0.2	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Belle Fourche city among the places of South Dakota

19th of 19 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the South Dakota page.

Places of South Dakota near Belle Fourche city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Harrisburg city	8,519 ±18
Sturgis city	7,086 ±30
Rapid Valley CDP	6,975 ±823
Tea city	6,786 ±17
Madison city	6,094 ±19
Belle Fourche city	5,804 ±18

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026