Data / Rankings / High school graduate or higher, population 25 and over / Counties in South Dakota

Counties in South Dakota by high school graduate or higher, population 25 and over, 2024

Brookings County had the highest high school graduate or higher, population 25 and over of 66 counties in 2024, at 97.1%. Oglala Lakota County had the lowest, at 74.4%. The median was 92.4% and the figure for South Dakota was 93.2%. Source: the U.S. Census Bureau.

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Highest97.1Brookings County
Lowest74.4Oglala Lakota County
Median92.466 counties
South Dakota93.2History

Map of counties, 2024

Aurora County: 92 %Beadle County: 87.5 %Bennett County: 86.3 %Bon Homme County: 90.6 %Brookings County: 97.1 %Brown County: 93.7 %Brule County: 90.8 %Buffalo County: 88.1 %Butte County: 89.4 %Campbell County: 92.2 %Charles Mix County: 91 %Clark County: 90.6 %Clay County: 92.3 %Codington County: 93.9 %Corson County: 86.1 %Custer County: 94.7 %Davison County: 91.5 %Day County: 93.4 %Deuel County: 93.3 %Dewey County: 86.7 %Douglas County: 90.6 %Edmunds County: 92.1 %Fall River County: 91.2 %Faulk County: 91.2 %Grant County: 91.6 %Gregory County: 92.5 %Haakon County: 96.5 %Hamlin County: 91.9 %Hand County: 95.1 %Hanson County: 93.2 %Harding County: 93.8 %Hughes County: 96.7 %Hutchinson County: 93.3 %Hyde County: 90 %Jackson County: 90.9 %Jerauld County: 93.6 %Jones County: 93.2 %Kingsbury County: 92.7 %Lake County: 93.4 %Lawrence County: 95.4 %Lincoln County: 96.5 %Lyman County: 89.4 %McCook County: 94.5 %McPherson County: 83.4 %Marshall County: 92.4 %Meade County: 95 %Mellette County: 83.5 %Miner County: 94.6 %Minnehaha County: 92.7 %Moody County: 95.1 %Oglala Lakota County: 74.4 %Pennington County: 94.6 %Perkins County: 94.9 %Potter County: 96.3 %Roberts County: 91.5 %Sanborn County: 88.9 %Spink County: 93.7 %Stanley County: 94.5 %Sully County: 96.1 %Todd County: 83.5 %Tripp County: 88.1 %Turner County: 93 %Union County: 95.7 %Walworth County: 91.6 %Yankton County: 93.7 %Ziebach County: 89.9 %
  • Under 89
  • 89 to 91
  • 91 to 92
  • 92 to 94
  • 94 to 95
  • 95 and over
%, 2024. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2024

Brookings County: 97.1 %Brookings County97.1Hughes County: 96.7 %Hughes County96.7Lincoln County: 96.5 %Lincoln County96.5Haakon County: 96.5 %Haakon County96.5Potter County: 96.3 %Potter County96.3Sully County: 96.1 %Sully County96.1Union County: 95.7 %Union County95.7Lawrence County: 95.4 %Lawrence County95.4Hand County: 95.1 %Hand County95.1Moody County: 95.1 %Moody County95.1Meade County: 95 %Meade County95Perkins County: 94.9 %Perkins County94.9Custer County: 94.7 %Custer County94.7Miner County: 94.6 %Miner County94.6Pennington County: 94.6 %Pennington County94.6McCook County: 94.5 %McCook County94.5Stanley County: 94.5 %Stanley County94.5Codington County: 93.9 %Codington County93.9Harding County: 93.8 %Harding County93.8Brown County: 93.7 %Brown County93.7Spink County: 93.7 %Spink County93.7Yankton County: 93.7 %Yankton County93.7Jerauld County: 93.6 %Jerauld County93.6Lake County: 93.4 %Lake County93.4Day County: 93.4 %Day County93.4Hutchinson County: 93.3 %Hutchinson County93.3Deuel County: 93.3 %Deuel County93.3Jones County: 93.2 %Jones County93.2Hanson County: 93.2 %Hanson County93.2Turner County: 93 %Turner County93Minnehaha County: 92.7 %Minnehaha County92.7Kingsbury County: 92.7 %Kingsbury County92.7Gregory County: 92.5 %Gregory County92.5Marshall County: 92.4 %Marshall County92.4Clay County: 92.3 %Clay County92.3Campbell County: 92.2 %Campbell County92.2Edmunds County: 92.1 %Edmunds County92.1Aurora County: 92 %Aurora County92Hamlin County: 91.9 %Hamlin County91.9Grant County: 91.6 %Grant County91.6Brookings County: 97.1 %Brookings County97.1Hughes County: 96.7 %Hughes County96.7Lincoln County: 96.5 %Lincoln County96.5Haakon County: 96.5 %Haakon County96.5Potter County: 96.3 %Potter County96.3Sully County: 96.1 %Sully County96.1Union County: 95.7 %Union County95.7Lawrence County: 95.4 %Lawrence County95.4Hand County: 95.1 %Hand County95.1Moody County: 95.1 %Moody County95.1Meade County: 95 %Meade County95Perkins County: 94.9 %Perkins County94.9Custer County: 94.7 %Custer County94.7Miner County: 94.6 %Miner County94.6Pennington County: 94.6 %Pennington County94.6McCook County: 94.5 %McCook County94.5Stanley County: 94.5 %Stanley County94.5Codington County: 93.9 %Codington County93.9Harding County: 93.8 %Harding County93.8Brown County: 93.7 %Brown County93.7Spink County: 93.7 %Spink County93.7Yankton County: 93.7 %Yankton County93.7Jerauld County: 93.6 %Jerauld County93.6Lake County: 93.4 %Lake County93.4Day County: 93.4 %Day County93.4Hutchinson County: 93.3 %Hutchinson County93.3Deuel County: 93.3 %Deuel County93.3Jones County: 93.2 %Jones County93.2Hanson County: 93.2 %Hanson County93.2Turner County: 93 %Turner County93Minnehaha County: 92.7 %Minnehaha County92.7Kingsbury County: 92.7 %Kingsbury County92.7Gregory County: 92.5 %Gregory County92.5Marshall County: 92.4 %Marshall County92.4Clay County: 92.3 %Clay County92.3Campbell County: 92.2 %Campbell County92.2Edmunds County: 92.1 %Edmunds County92.1Aurora County: 92 %Aurora County92Hamlin County: 91.9 %Hamlin County91.9Grant County: 91.6 %Grant County91.6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Brookings County97.1+0.4 pts
2Hughes County96.7+0.6 pts
3Lincoln County96.5+0.6 pts
4Haakon County96.5-0.5 pts
5Potter County96.3-1.4 pts
6Sully County96.1-0 pts
7Union County95.7+0.8 pts
8Lawrence County95.40 pts
9Hand County95.1-0.3 pts
9Moody County95.1+0.6 pts
11Meade County95+0.4 pts
12Perkins County94.9+2 pts
13Custer County94.7-0.3 pts
14Miner County94.6+1.3 pts
15Pennington County94.6-0.1 pts
16McCook County94.5+1 pts
17Stanley County94.5-1 pts
18Codington County93.9+1.6 pts
19Harding County93.8-0.7 pts
20Brown County93.70 pts
20Spink County93.7+1.7 pts
22Yankton County93.7+0.9 pts
23Jerauld County93.6-0.2 pts
24Lake County93.4-0.2 pts
25Day County93.4+1.6 pts
26Hutchinson County93.3+0.2 pts
27Deuel County93.3-0.3 pts
28Jones County93.2-2.3 pts
29Hanson County93.2+0.9 pts
30Turner County93+1.3 pts
31Minnehaha County92.7-0.4 pts
32Kingsbury County92.7+1 pts
33Gregory County92.5+1.1 pts
34Marshall County92.4+0.3 pts
35Clay County92.3-1.6 pts
36Campbell County92.2+0.7 pts
37Edmunds County92.1-2.4 pts
38Aurora County92+0.9 pts
39Hamlin County91.9-0.7 pts
40Grant County91.6-0.5 pts
41Walworth County91.6-0.4 pts
42Davison County91.5-0.3 pts
43Roberts County91.5-0.2 pts
44Faulk County91.2-1.6 pts
45Fall River County91.2-0.3 pts
46Charles Mix County91+1.4 pts
47Jackson County90.9+1.6 pts
48Brule County90.8+0.7 pts
49Bon Homme County90.6+0.8 pts
49Douglas County90.6-1.1 pts
51Clark County90.6+0.5 pts
52Hyde County90+0.3 pts
53Ziebach County89.9+1.1 pts
54Lyman County89.4-1.6 pts
55Butte County89.4+1.1 pts
56Sanborn County88.9-0.9 pts
57Tripp County88.1-1.4 pts
58Buffalo County88.1+2.5 pts
59Beadle County87.5+2.5 pts
60Dewey County86.7-0.2 pts
61Bennett County86.3-0.6 pts
62Corson County86.1-0.7 pts
63Todd County83.5+1.1 pts
64Mellette County83.5-1.1 pts
65McPherson County83.4+2.4 pts
66Oglala Lakota County74.4-3.6 pts

Other periods

About this ranking

People aged 25 and over who hold a regular high school diploma, a GED or alternative credential, or any higher level of education, as a percentage of all people aged 25 and over. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Measures the adult population, not students: it is not the high school graduation rate of a class. Not comparable with the EU share below upper secondary education, which covers ages 25 to 64.

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. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs (Counties in South Dakota by high school graduate or higher, population 25 and over, 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat

MLA 9

American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs, Counties in South Dakota by high school graduate or higher, population 25 and over, 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/south-dakota-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. Counties in South Dakota by high school graduate or higher, population 25 and over, 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. Also distributed by Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/south-dakota-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs, Counties in South Dakota by high school graduate or higher, population 25 and over, 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat, via Invokely: https://invokely.ai/rankings/high-school-graduate-or-higher/south-dakota-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_dakota_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs: Counties in South Dakota by high school graduate or higher, population 25 and over, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/south-dakota-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs: Counties in South Dakota by high school graduate or higher, population 25 and over, 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat
L2  - https://invokely.ai/rankings/high-school-graduate-or-higher/south-dakota-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/south-dakota-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. Retrieved 2026-10-12.
ER  -
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Rank Counties in South Dakota by high school graduate or higher, population 25 and over using official data, and cite the source.
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Questions

Which county has the highest high school graduate or higher, population 25 and over?

Brookings County, with 97.1% in 2024, according to the U.S. Census Bureau.

Which county has the lowest high school graduate or higher, population 25 and over?

Oglala Lakota County, with 74.4% in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. Retrieved 2026-10-12.

High school graduate or higher, population 25 and over: other rankings

Counties in South Dakota: more rankings