Demographics of Butte County, South Dakota

Butte County, South Dakota had 10,856 people on July 1, 2025, by the Census Bureau’s estimate: +564 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Butte County, in four figures

10,856
Population: July 1, 2025, Vintage 2025 estimate.; +5.5%
Change since July 2020: +564 people.; 40.2 ±1.2
Median age: ACS 2020–⁠2024.; $75,652 ±$11,248
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Butte County, South Dakota's population grew 5.5% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Butte County, 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).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Butte County, South Dakota's population grew 5.5% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Butte County, 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	10,292	100.0	100.0
2021	10,544	102.4	100.2
2022	10,789	104.8	100.7
2023	10,850	105.4	101.6
2024	10,885	105.8	102.5
2025	10,856	105.5	103.1

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Population of Butte County, South Dakota on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	10,292	+49	+20	0	+27
2021	10,544	+252	+12	−1	+251
2022	10,789	+245	+3	−2	+233
2023	10,850	+61	+13	−2	+52
2024	10,885	+35	+33	+2	+1
2025	10,856	−29	+25	+1	−55

Age, 2020–2024

The median age is 40.2 ±1.2: for men 39.0 ±1.9 and for women 42.3 ±2.8. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Butte County by age, ACS 2020–2024
Age	People	Share	South Dakota	United States
Under 5	736 ±97	6.9% ±0.9	6.3% ±0.1	5.6% ±<0.1
5 to 17	1,911 ±230	17.9% ±2.2	17.9% ±0.2	16.3% ±<0.1
18 to 24	777 ±170	7.3% ±1.6	9.3% ±0.4	9.1% ±<0.1
25 to 44	2,415 ±197	22.6% ±1.8	25.2% ±0.2	26.9% ±<0.1
45 to 64	2,688 ±220	25.2% ±2.1	23.3% ±0.2	24.8% ±<0.1
65 and over	2,149 ±244	20.1% ±2.3	18.0% ±0.3	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $75,652 ±$11,248, and income per person $38,718 ±$4,471, in 2024 dollars. The median is $75,081 ±$888 in South Dakota and $80,734 ±$166 in the United States.

Households by income

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Households in Butte County by income, ACS 2020–2024
Household income	Households	Share	South Dakota	United States
Under $25,000	768 ±214	17.8% ±4.9	14.0% ±0.4	14.6% ±<0.1
$25,000 to $49,999	854 ±205	19.8% ±4.7	18.5% ±0.5	16.7% ±<0.1
$50,000 to $74,999	519 ±137	12.1% ±3.1	17.4% ±0.4	15.5% ±<0.1
$75,000 to $99,999	588 ±172	13.7% ±3.9	14.6% ±0.4	12.6% ±<0.1
$100,000 to $149,999	793 ±212	18.4% ±4.9	18.9% ±0.5	17.5% ±<0.1
$150,000 to $199,999	400 ±136	9.3% ±3.1	8.5% ±0.3	9.6% ±<0.1
$200,000 or more	384 ±129	8.9% ±3.0	8.1% ±0.4	13.4% ±0.1

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).

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Poverty rate in Butte County by age, ACS 2020–2024
Age	Below poverty	Rate	South Dakota	United States
All ages	913 ±310	8.6% ±2.9	11.9% ±0.4	12.5% ±0.1
Under 18	101 to 335	3.9% to 12.6%	14.3% ±0.6	16.1% ±0.1
18 to 59	417 ±167	7.9% ±3.1	11.8% ±0.5	11.6% ±0.1
60 and over	278 ±101	10.4% ±3.7	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

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Housing in Butte County, ACS 2020–2024
Measure	Butte County	South Dakota	United States
Housing units	4,783 ±23	408,584 ±422	143,775,355 ±10,234
Occupied	90.0% ±4.2	89.5% ±0.4	89.9% ±0.1
Vacant	10.0% ±4.2	10.5% ±0.4	10.1% ±0.1
Owner occupied	76.1% ±3.5	68.6% ±0.5	65.2% ±0.3
Renter occupied	23.9% ±4.1	31.4% ±0.5	34.8% ±0.1
Median home value	$244,600 ±$28,863	$257,400 ±$3,051	$332,700 ±$236
Median gross rent	$972 ±$87	$946 ±$11	$1,413 ±$2
Median year built	1982 ±5	1980 ±1	1980 ±1

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

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People in Butte County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	South Dakota	United States
Hispanic or Latino	456 ±0	4.3% ±<0.1	4.8% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	9,395 ±124	88.0% ±1.2	79.8% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	0 to 16	0% to 0.1%	2.1% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 118	0% to 1.1%	1.4% ±0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	31 to 197	0.3% to 1.8%	7.1% ±0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 44	0% to 0.4%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 37	0% to 0.3%	0.3% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	627 ±155	5.9% ±1.5	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).

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People in Butte County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	South Dakota	United States
Born in the state	6,206 ±374	58.1% ±3.5	62.4% ±0.4	57.3% ±<0.1
Born in another state	4,146 ±339	38.8% ±3.2	32.9% ±0.4	26.9% ±<0.1
Born a citizen outside the states	77 to 289	0.7% to 2.7%	0.7% ±0.1	1.7% ±<0.1
Born abroad	45 to 237	0.4% to 2.2%	4.0% ±0.2	14.1% ±<0.1
Naturalized citizens	20 to 204	0.2% to 1.9%	1.7% ±0.1	7.4% ±<0.1
Not citizens	0 to 59	0% to 0.6%	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%.

Butte County among the counties of South Dakota

17th of 66 by population, July 2025. Every one is listed on the South Dakota page.

Counties of South Dakota near Butte County in population, July 2025
County	July 2025	Change since 2020
Hughes County	17,570	−0.9%
Union County	17,402	+3.2%
Clay County	15,031	+0.2%
Oglala Lakota County	13,338	−2.3%
Lake County	10,993	−0.2%
Butte County	10,856	+5.5%
Roberts County	10,255	−0.1%
Custer County	9,431	+13.2%
Turner County	9,314	+7.3%
Charles Mix County	9,303	−0.5%
Todd County	8,863	−4.9%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — 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

Data retrieved September 25, 2026