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

Potter County had the highest high school graduate or higher, population 25 and over of 66 counties in 2023, at 97.7%. Oglala Lakota County had the lowest, at 78%. The median was 92.1% and the figure for South Dakota was 93%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest97.7Potter County
Lowest78Oglala Lakota County
Median92.166 counties
South Dakota93History

Map of counties, 2023

Aurora County: 91.1 %Beadle County: 85.1 %Bennett County: 86.9 %Bon Homme County: 89.8 %Brookings County: 96.7 %Brown County: 93.7 %Brule County: 90.1 %Buffalo County: 85.6 %Butte County: 88.3 %Campbell County: 91.5 %Charles Mix County: 89.6 %Clark County: 90 %Clay County: 93.9 %Codington County: 92.4 %Corson County: 86.8 %Custer County: 95 %Davison County: 91.8 %Day County: 91.8 %Deuel County: 93.6 %Dewey County: 86.9 %Douglas County: 91.7 %Edmunds County: 94.5 %Fall River County: 91.5 %Faulk County: 92.9 %Grant County: 92.1 %Gregory County: 91.4 %Haakon County: 96.9 %Hamlin County: 92.6 %Hand County: 95.4 %Hanson County: 92.3 %Harding County: 94.5 %Hughes County: 96.1 %Hutchinson County: 93.1 %Hyde County: 89.7 %Jackson County: 89.3 %Jerauld County: 93.9 %Jones County: 95.5 %Kingsbury County: 91.6 %Lake County: 93.7 %Lawrence County: 95.4 %Lincoln County: 95.9 %Lyman County: 91 %McCook County: 93.5 %McPherson County: 81 %Marshall County: 92.1 %Meade County: 94.6 %Mellette County: 84.6 %Miner County: 93.4 %Minnehaha County: 93.1 %Moody County: 94.6 %Oglala Lakota County: 78 %Pennington County: 94.7 %Perkins County: 92.8 %Potter County: 97.7 %Roberts County: 91.7 %Sanborn County: 89.8 %Spink County: 92 %Stanley County: 95.4 %Sully County: 96.2 %Todd County: 82.5 %Tripp County: 89.5 %Turner County: 91.7 %Union County: 94.9 %Walworth County: 92 %Yankton County: 92.7 %Ziebach County: 88.8 %
  • Under 89
  • 89 to 91
  • 91 to 92
  • 92 to 94
  • 94 to 95
  • 95 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2023

Potter County: 97.7 %Potter County97.7Haakon County: 96.9 %Haakon County96.9Brookings County: 96.7 %Brookings County96.7Sully County: 96.2 %Sully County96.2Hughes County: 96.1 %Hughes County96.1Lincoln County: 95.9 %Lincoln County95.9Jones County: 95.5 %Jones County95.5Hand County: 95.4 %Hand County95.4Stanley County: 95.4 %Stanley County95.4Lawrence County: 95.4 %Lawrence County95.4Custer County: 95 %Custer County95Union County: 94.9 %Union County94.9Pennington County: 94.7 %Pennington County94.7Meade County: 94.6 %Meade County94.6Moody County: 94.6 %Moody County94.6Edmunds County: 94.5 %Edmunds County94.5Harding County: 94.5 %Harding County94.5Clay County: 93.9 %Clay County93.9Jerauld County: 93.9 %Jerauld County93.9Brown County: 93.7 %Brown County93.7Lake County: 93.7 %Lake County93.7Deuel County: 93.6 %Deuel County93.6McCook County: 93.5 %McCook County93.5Miner County: 93.4 %Miner County93.4Hutchinson County: 93.1 %Hutchinson County93.1Minnehaha County: 93.1 %Minnehaha County93.1Faulk County: 92.9 %Faulk County92.9Perkins County: 92.8 %Perkins County92.8Yankton County: 92.7 %Yankton County92.7Hamlin County: 92.6 %Hamlin County92.6Codington County: 92.4 %Codington County92.4Hanson County: 92.3 %Hanson County92.3Grant County: 92.1 %Grant County92.1Marshall County: 92.1 %Marshall County92.1Spink County: 92 %Spink County92Walworth County: 92 %Walworth County92Davison County: 91.8 %Davison County91.8Day County: 91.8 %Day County91.8Turner County: 91.7 %Turner County91.7Douglas County: 91.7 %Douglas County91.7Potter County: 97.7 %Potter County97.7Haakon County: 96.9 %Haakon County96.9Brookings County: 96.7 %Brookings County96.7Sully County: 96.2 %Sully County96.2Hughes County: 96.1 %Hughes County96.1Lincoln County: 95.9 %Lincoln County95.9Jones County: 95.5 %Jones County95.5Hand County: 95.4 %Hand County95.4Stanley County: 95.4 %Stanley County95.4Lawrence County: 95.4 %Lawrence County95.4Custer County: 95 %Custer County95Union County: 94.9 %Union County94.9Pennington County: 94.7 %Pennington County94.7Meade County: 94.6 %Meade County94.6Moody County: 94.6 %Moody County94.6Edmunds County: 94.5 %Edmunds County94.5Harding County: 94.5 %Harding County94.5Clay County: 93.9 %Clay County93.9Jerauld County: 93.9 %Jerauld County93.9Brown County: 93.7 %Brown County93.7Lake County: 93.7 %Lake County93.7Deuel County: 93.6 %Deuel County93.6McCook County: 93.5 %McCook County93.5Miner County: 93.4 %Miner County93.4Hutchinson County: 93.1 %Hutchinson County93.1Minnehaha County: 93.1 %Minnehaha County93.1Faulk County: 92.9 %Faulk County92.9Perkins County: 92.8 %Perkins County92.8Yankton County: 92.7 %Yankton County92.7Hamlin County: 92.6 %Hamlin County92.6Codington County: 92.4 %Codington County92.4Hanson County: 92.3 %Hanson County92.3Grant County: 92.1 %Grant County92.1Marshall County: 92.1 %Marshall County92.1Spink County: 92 %Spink County92Walworth County: 92 %Walworth County92Davison County: 91.8 %Davison County91.8Day County: 91.8 %Day County91.8Turner County: 91.7 %Turner County91.7Douglas County: 91.7 %Douglas County91.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Potter County97.7+1.1 pts
2Haakon County96.9+0.6 pts
3Brookings County96.7+0.5 pts
4Sully County96.2-0 pts
5Hughes County96.1-0.6 pts
6Lincoln County95.9-0.1 pts
7Jones County95.5+0.6 pts
8Hand County95.4+2.3 pts
9Stanley County95.4+1.1 pts
10Lawrence County95.4+0.4 pts
11Custer County95+1.4 pts
12Union County94.9+0.5 pts
13Pennington County94.7+0.5 pts
14Meade County94.6-1.2 pts
15Moody County94.6+0.1 pts
16Edmunds County94.5+2 pts
17Harding County94.5+0.4 pts
18Clay County93.9+0.5 pts
19Jerauld County93.9+2.2 pts
20Brown County93.70 pts
21Lake County93.7+0.3 pts
22Deuel County93.6+0.7 pts
23McCook County93.5+1 pts
24Miner County93.4+2.9 pts
25Hutchinson County93.1+1.1 pts
26Minnehaha County93.1-0 pts
27Faulk County92.9+0.7 pts
28Perkins County92.8+0.6 pts
29Yankton County92.7-0.3 pts
30Hamlin County92.6+0.2 pts
31Codington County92.4+0.5 pts
32Hanson County92.3-2.4 pts
33Grant County92.1+0.5 pts
34Marshall County92.1+1.8 pts
35Spink County92+1.4 pts
36Walworth County92+0.8 pts
37Davison County91.8+1.5 pts
37Day County91.8+0.3 pts
39Turner County91.7+0.4 pts
40Douglas County91.7+0.4 pts
41Roberts County91.7+0.6 pts
42Kingsbury County91.6+1.2 pts
43Campbell County91.5+4.3 pts
44Fall River County91.5-0.1 pts
45Gregory County91.4+1 pts
46Aurora County91.1-0.2 pts
47Lyman County91-0.4 pts
48Brule County90.1+4.3 pts
49Clark County90-1.1 pts
50Bon Homme County89.8+0.9 pts
51Sanborn County89.8-2.1 pts
52Hyde County89.7-1.1 pts
53Charles Mix County89.6+0.1 pts
54Tripp County89.5-0.3 pts
55Jackson County89.3+2.2 pts
56Ziebach County88.8-0.8 pts
57Butte County88.3-1.1 pts
58Dewey County86.9+0.3 pts
59Bennett County86.9-2 pts
60Corson County86.8+0.6 pts
61Buffalo County85.6+3.2 pts
62Beadle County85.1-0 pts
63Mellette County84.6+2.6 pts
64Todd County82.5+2.6 pts
65McPherson County81-0.1 pts
66Oglala Lakota County78+4 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/2023/table-based-SF/data/5YRData/acsdt5y2023-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, 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-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, 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b15003.dat. Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/south-dakota-counties?period=2023. 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, 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b15003.dat. Also distributed by Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/south-dakota-counties?period=2023.

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, 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b15003.dat, via Invokely: https://invokely.ai/rankings/high-school-graduate-or-higher/south-dakota-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_dakota_2023,
  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, 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b15003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/south-dakota-counties?period=2023. 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/2023/table-based-SF/data/5YRData/acsdt5y2023-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, 2023
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b15003.dat
L2  - https://invokely.ai/rankings/high-school-graduate-or-higher/south-dakota-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/south-dakota-counties?period=2023.
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/2023/table-based-SF/data/5YRData/acsdt5y2023-b15003.dat. Retrieved 2026-10-12.
ER  -
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in South Dakota by high school graduate or higher, population 25 and over using official data, and cite the source.
rank_places {"indicator":"high_school_graduate_share","level":"province","within":"South Dakota","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=high_school_graduate_share&level=province&within=South%20Dakota&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

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

Potter County, with 97.7% in 2023, 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 78% in 2023.

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