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South Dakota population 2026

South Dakota has 935,094 people on the latest official figure, for 1 July 2025, 7,984 more than a year earlier (+0.86%). It is 46th of the US’s 50 states and DC by population, home to 0.3% of the US’s people.

If last year’s change continues: about 943 thousand by 1 July 2026. That is our arithmetic, not an official figure.

South Dakota in numbers

Population
935 thousand 1 July 2025
Change in a year
+0.86% +7,984 people
Change since 2020
+5.33% from 888 thousand
Share of the US
0.3% 46th of 50 states and DC
Population density
5per km² 196,342 km²
Births in the year
11 thousand deaths: 9 thousand
International migration
+3 thousand net arrivals from abroad
Moves within the US
+2 thousand more people moved in than left

In the latest year births outnumbered deaths by 2,605, 3,183 more people arrived from abroad than left, and 2,169 more people moved in from the rest of the US than moved out.

That is about as many people as Fiji (937 thousand).

Population of South Dakota by year

Population of South Dakota
935k
› Show the numbers as a table
YearPopulation
2010816,193
2011823,740
2012833,859
2013842,751
2014849,670
2015854,663
2016863,693
2017873,732
2018879,386
2019887,127
2020887,808
2021896,303
2022909,156
2023917,739
2024927,110
2025935,094
YearPopulationChange
2025 935,094 +7,984
2024 927,110 +9,371
2023 917,739 +8,583
2022 909,156 +12,853
2021 896,303 +8,495
2020 887,808 +681
2019 887,127 +7,741
2018 879,386 +5,654
2017 873,732 +10,039
2016 863,693 +9,030
2015 854,663 +4,993
2014 849,670 +6,919
2013 842,751 +8,892
2012 833,859 +10,119
2011 823,740 +7,547

2010–2019 are Vintage 2020 estimates and 2020–2025 are Vintage 2025, so the step between 2019 and 2020 is partly a change of base.

South Dakota among the US’s states

Full ranking →
States of the US by population
#
1 California39,355,309−0.02%
2 Texas31,709,821+1.25%
3 Florida23,462,518+0.84%
4 New York State20,002,427+0.01%
5 Pennsylvania13,059,432+0.10%
6 Illinois12,719,141+0.13%
7 Ohio11,900,510+0.34%
8 Georgia (US State)11,302,748+0.88%
9 North Carolina11,197,968+1.32%
10 Michigan10,127,884+0.28%
11 New Jersey9,548,215+0.44%
12 Virginia8,880,107+0.69%
13 Washington State8,001,020+0.92%
14 Arizona7,623,818+0.89%
15 Tennessee7,315,076+0.88%
16 Massachusetts7,154,084+0.22%
17 Indiana6,973,333+0.56%
18 Missouri6,270,541+0.43%
19 Maryland6,265,347+0.32%
20 Colorado6,012,561+0.40%
21 Wisconsin5,972,787+0.26%
22 Minnesota5,830,405+0.57%
23 South Carolina5,570,274+1.46%
24 Alabama5,193,088+0.58%
25 Louisiana4,618,189+0.07%
26 Kentucky4,606,864+0.50%
27 Oregon4,273,586+0.19%
28 Oklahoma4,123,288+0.62%
29 Connecticut3,688,496+0.38%
30 Utah3,538,904+1.02%
31 Nevada3,282,188+0.88%
32 Iowa3,238,387+0.25%
33 Arkansas3,114,791+0.60%
34 Kansas2,977,220+0.40%
35 Mississippi2,954,160+0.14%
36 New Mexico2,125,498−0.06%
37 Idaho2,029,733+1.44%
38 Nebraska2,018,006+0.62%
39 West Virginia1,766,147−0.07%
40 Hawaii1,432,820−0.15%
41 New Hampshire1,415,342+0.48%
42 Maine1,414,874+0.46%
43 Montana1,144,694+0.63%
44 Rhode Island1,114,521+0.37%
45 Delaware1,059,952+0.94%
46 South Dakota935,094+0.86%
47 North Dakota799,358+0.75%
48 Alaska737,270+0.10%
49 District of Columbia693,645+0.34%
50 Vermont644,663−0.29%
51 Wyoming588,753+0.35%

Largest cities in South Dakota

City proper, not the wider metro area; latest figure in GeoNames (CC BY 4.0), so years differ.

  1. Sioux Falls171,544
  2. Rapid City73,569
  3. Aberdeen28,102
  4. Brookings23,657
  5. Watertown22,073
  6. Mitchell15,669

Questions

What is the population of South Dakota in 2026?

The latest official figure is 935,094, for 1 July 2025 (US Census Bureau). If last year’s change continues, South Dakota would have about 943 thousand people by 1 July 2026; that is our arithmetic, not an official figure. The Census Bureau publishes new state estimates each December.

Is South Dakota’s population growing or shrinking?

It grew by 7,984 people (+0.86%) in the latest year, and has changed +5.33% since 2020. In the latest year births outnumbered deaths by 2,605, 3,183 more people arrived from abroad than left, and 2,169 more people moved in from the rest of the US than moved out.

How does South Dakota rank in the US?

South Dakota is 46th of the US’s 50 states and DC, with 0.3% of the people. California is the largest, with 39.4 million.

What is the population density of South Dakota?

About 5 people per km², on 196,342 km². Land area, US Census Bureau Gazetteer.

What is the largest city in South Dakota?

Sioux Falls, with about 172 thousand people in the city proper. Metro areas are larger, and years differ (GeoNames).

Source and method

US Census Bureau, Vintage 2025 population estimates. US government work, public domain. Land area, US Census Bureau Gazetteer. The Census Bureau publishes new state estimates each December. Ranks, shares and changes are our arithmetic on the published figures. National figures can differ from the UN’s projection for the US, which uses a different method. The 2026 figure above carries last year’s change forward; it does not come from the source.

Cite this page: South Dakota population, US Census Bureau, 1 July 2025. GlobeMetrics, https://globemetrics.org/world-population/united-states/south-dakota/

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