County Maps US

Butte County, South Dakota

A county in South Dakota, ranked 17 of 66 by population.

CountyFIPS 46019

Within South Dakota
Butte County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Belle Fourche, the county seat, located via the 2025 Census Gazetteer.

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Population
10,856
+564 (+5.5%) since 2020
Land area
2,250
square miles. A further 0.7% of the total area is water
Population density
4.8
people per square mile, computed rather than published
County seat
Belle Fourche
Seat of county government.
Established
1883
142 years ago
Largest city
Belle Fourche city
Population 5,791.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Butte County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Butte County, South Dakota from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 674 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Butte County ranks

Position among the 66 counties of South Dakota, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn South DakotaNationally
Population10,85617th of 662,354th of 3,144
Land area2,250 sq mi7th of 66247th of 3,144
Population density4.8 per sq mi36th of 662,781st of 3,144
Median household income$75,65220th of 66800th of 3,143

Full data for Butte County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population10,856Vintage 2025 Population Estimates
Population in 202010,292Vintage 2025 Population Estimates
2020 estimates base?10,243Vintage 2025 Population Estimates
Land area2,250 sq mi2025 Gazetteer Files
Water area16.5 sq mi2025 Gazetteer Files
Total area2,267 sq mi2025 Gazetteer Files
Population density?4.8 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$75,652American Community Survey 2020-2024 5-Year Estimates
Median home value$244,600American Community Survey 2020-2024 5-Year Estimates
Median age40.2American Community Survey 2020-2024 5-Year Estimates
Households4,306American Community Survey 2020-2024 5-Year Estimates
Housing units4,783American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
+25
130 births, 105 deaths
Net migration
-54
More people moved out than moved in.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 6 areas bordering Butte County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Meade CountySouth Dakota60 mi30,711
Harding CountySouth Dakota53 mi1,331
Lawrence CountySouth Dakota39 mi29,459
Crook CountyWyoming29 mi7,852
Carter CountyMontana16 mi1,383
Perkins CountySouth Dakota12 mi2,853

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 66 counties of South Dakota

Open the interactive South Dakota county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.