Data / Rankings / Population aged 65 and over / Counties in South Dakota

Counties in South Dakota by share of population aged 65 and over

Custer County had the highest share of population aged 65 and over of 66 counties in 2022, at 33.4%. Oglala Lakota County had the lowest, at 7.6%. The median was 21.6% and the figure for South Dakota was 18.3%. Source: the U.S. Census Bureau.

Highest33.4Custer County
Lowest7.6Oglala Lakota County
Median21.666 counties
South Dakota18.3History

Top 40 counties, 2022

CSVChart (SVG)

Custer CountyCuster County: 33.4 %33.4Fall River CountyFall River County: 33.3 %33.3Potter CountyPotter County: 31.6 %31.6Jerauld CountyJerauld County: 31.2 %31.2McPherson CountyMcPherson County: 30.3 %30.3Campbell CountyCampbell County: 28.6 %28.6Gregory CountyGregory County: 28.3 %28.3Perkins CountyPerkins County: 27.7 %27.7Douglas CountyDouglas County: 27.1 %27.1Day CountyDay County: 27 %27Hand CountyHand County: 27 %27Hyde CountyHyde County: 26.9 %26.9Faulk CountyFaulk County: 26.6 %26.6Haakon CountyHaakon County: 25.7 %25.7Miner CountyMiner County: 25.4 %25.4Grant CountyGrant County: 25.1 %25.1Walworth CountyWalworth County: 25 %25Sully CountySully County: 24.8 %24.8Jones CountyJones County: 24.8 %24.8Kingsbury CountyKingsbury County: 24.8 %24.8Lawrence CountyLawrence County: 24.6 %24.6Hutchinson CountyHutchinson County: 23.7 %23.7Edmunds CountyEdmunds County: 23.5 %23.5Spink CountySpink County: 23.3 %23.3Marshall CountyMarshall County: 23.2 %23.2Tripp CountyTripp County: 22.7 %22.7Brule CountyBrule County: 22.4 %22.4Deuel CountyDeuel County: 22.3 %22.3Aurora CountyAurora County: 22.1 %22.1Yankton CountyYankton County: 22 %22Sanborn CountySanborn County: 21.9 %21.9Bon Homme CountyBon Homme County: 21.9 %21.9Clark CountyClark County: 21.6 %21.6Butte CountyButte County: 21.6 %21.6Roberts CountyRoberts County: 21.5 %21.5Stanley CountyStanley County: 21.4 %21.4Lake CountyLake County: 21.3 %21.3Turner CountyTurner County: 21.2 %21.2Harding CountyHarding County: 21.1 %21.1McCook CountyMcCook County: 20.8 %20.8
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2022 (%)Change on 2021
1Custer County33.4+0.2 pts
2Fall River County33.3+0.4 pts
3Potter County31.6+0.7 pts
4Jerauld County31.2+0.2 pts
5McPherson County30.3+0.8 pts
6Campbell County28.6+0.6 pts
7Gregory County28.3+0.6 pts
8Perkins County27.7+0.6 pts
9Douglas County27.1+0.4 pts
10Day County27+0.6 pts
11Hand County27-0 pts
12Hyde County26.9+0.3 pts
13Faulk County26.6-0.2 pts
14Haakon County25.7+1.1 pts
15Miner County25.4+0.4 pts
16Grant County25.1+0.7 pts
17Walworth County25+0.1 pts
18Sully County24.8+1.5 pts
19Jones County24.8+0.9 pts
20Kingsbury County24.80 pts
21Lawrence County24.6+0.4 pts
22Hutchinson County23.7+0.1 pts
23Edmunds County23.5+0.2 pts
24Spink County23.3+0.4 pts
25Marshall County23.2-0.5 pts
26Tripp County22.7+0.5 pts
27Brule County22.4+0.5 pts
28Deuel County22.3-0.1 pts
29Aurora County22.1+0.1 pts
30Yankton County22+0.9 pts
31Sanborn County21.9-0.1 pts
32Bon Homme County21.9+0.4 pts
33Clark County21.6-0.2 pts
34Butte County21.6+0.2 pts
35Roberts County21.5+0.3 pts
36Stanley County21.4+0.2 pts
37Lake County21.3+0.7 pts
38Turner County21.2-0.1 pts
39Harding County21.1+0.4 pts
40McCook County20.8+0.2 pts
41Moody County20.6+0.3 pts
42Davison County20.5+0.3 pts
43Union County20.1+0.5 pts
44Codington County19.6+0.5 pts
45Hughes County19.1+0.6 pts
46Pennington County19.1+0.3 pts
47Brown County19+0.5 pts
48Charles Mix County18.4+0.3 pts
49Beadle County17.9+0.1 pts
50Meade County17.8+0.7 pts
51Hamlin County17.6+0.4 pts
52Mellette County17.1+0.4 pts
53Hanson County16.7-0.3 pts
54Lyman County16.1-0 pts
55Minnehaha County14.9+0.2 pts
56Bennett County14.5+0.1 pts
57Lincoln County14.4+0.6 pts
58Brookings County14.4+0.3 pts
59Clay County13.5+0.1 pts
60Jackson County13.3-0.1 pts
61Corson County12.8+0.2 pts
62Dewey County10.8-0.6 pts
63Buffalo County10.5+0.3 pts
64Ziebach County10.4-0.1 pts
65Todd County8.5+0.1 pts
66Oglala Lakota County7.6+0.2 pts

Other periods

About this ranking

Residents aged 65 or over as a percentage of total population. Spain: 1 January, INE annual census. United States: 1 July, Census Bureau population estimates. World Bank figures for other countries and the World refer to mid-year.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program, county population by age and sex (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/counties/asrh/cc-est2025-agesex-all.csv. Retrieved 2026-10-09.

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Rank Counties in South Dakota by share of population aged 65 and over using official data, and cite the source.
rank_places {"indicator":"population_65_plus_share","level":"province","within":"South Dakota","limit":10}
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Questions

Which county has the highest share of population aged 65 and over?

Custer County, with 33.4% in 2022, according to the U.S. Census Bureau.

Which county has the lowest share of population aged 65 and over?

Oglala Lakota County, with 7.6% in 2022.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. Retrieved 2026-10-09.

Population aged 65 and over: other rankings

Counties in South Dakota: more rankings