Counties in Oklahoma by high school graduate or higher, population 25 and over

Roger Mills County had the highest high school graduate or higher, population 25 and over of 77 counties in 2023, at 93.6%. Texas County had the lowest, at 75%. The median was 87.6% and the figure for Oklahoma was 89.1%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Lowest75Texas County
Median87.677 counties
Oklahoma89.1History

Map of counties, 2023

Adair County: 82.8 %Alfalfa County: 85.8 %Atoka County: 83.6 %Beaver County: 85.1 %Beckham County: 84.3 %Blaine County: 84.7 %Bryan County: 87.6 %Caddo County: 86.7 %Canadian County: 92.2 %Carter County: 87.8 %Cherokee County: 89.9 %Choctaw County: 86.3 %Cimarron County: 85.3 %Cleveland County: 92.3 %Coal County: 84.4 %Comanche County: 90.6 %Cotton County: 85.3 %Craig County: 86.2 %Creek County: 90.5 %Custer County: 88.4 %Delaware County: 87.4 %Dewey County: 92.6 %Ellis County: 88.2 %Garfield County: 87.5 %Garvin County: 87.7 %Grady County: 90.5 %Grant County: 91.2 %Greer County: 81.7 %Harmon County: 83.5 %Harper County: 87.6 %Haskell County: 85.7 %Hughes County: 84.1 %Jackson County: 86.7 %Jefferson County: 84.8 %Johnston County: 87.5 %Kay County: 90.5 %Kingfisher County: 90.2 %Kiowa County: 86 %Latimer County: 84.7 %Le Flore County: 85.3 %Lincoln County: 89 %Logan County: 91.7 %Love County: 85.3 %McClain County: 88.7 %McCurtain County: 85.7 %McIntosh County: 86.6 %Major County: 90.1 %Marshall County: 84.7 %Mayes County: 89.4 %Murray County: 85.8 %Muskogee County: 87 %Noble County: 91.1 %Nowata County: 90.4 %Okfuskee County: 83.3 %Oklahoma County: 88.5 %Okmulgee County: 88.2 %Osage County: 89.6 %Ottawa County: 87.2 %Pawnee County: 87.9 %Payne County: 93.2 %Pittsburg County: 87.3 %Pontotoc County: 90.5 %Pottawatomie County: 88.6 %Pushmataha County: 85.4 %Roger Mills County: 93.6 %Rogers County: 92.2 %Seminole County: 85.3 %Sequoyah County: 84.5 %Stephens County: 88.3 %Texas County: 75 %Tillman County: 81.5 %Tulsa County: 89.8 %Wagoner County: 91.7 %Washington County: 91.5 %Washita County: 88.9 %Woods County: 88.6 %Woodward County: 88 %
  • Under 85
  • 85 to 86
  • 86 to 88
  • 88 to 89
  • 89 to 91
  • 91 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

Roger Mills County: 93.6 %Roger Mills County93.6Payne County: 93.2 %Payne County93.2Dewey County: 92.6 %Dewey County92.6Cleveland County: 92.3 %Cleveland County92.3Canadian County: 92.2 %Canadian County92.2Rogers County: 92.2 %Rogers County92.2Logan County: 91.7 %Logan County91.7Wagoner County: 91.7 %Wagoner County91.7Washington County: 91.5 %Washington County91.5Grant County: 91.2 %Grant County91.2Noble County: 91.1 %Noble County91.1Comanche County: 90.6 %Comanche County90.6Kay County: 90.5 %Kay County90.5Grady County: 90.5 %Grady County90.5Creek County: 90.5 %Creek County90.5Pontotoc County: 90.5 %Pontotoc County90.5Nowata County: 90.4 %Nowata County90.4Kingfisher County: 90.2 %Kingfisher County90.2Major County: 90.1 %Major County90.1Cherokee County: 89.9 %Cherokee County89.9Tulsa County: 89.8 %Tulsa County89.8Osage County: 89.6 %Osage County89.6Mayes County: 89.4 %Mayes County89.4Lincoln County: 89 %Lincoln County89Washita County: 88.9 %Washita County88.9McClain County: 88.7 %McClain County88.7Woods County: 88.6 %Woods County88.6Pottawatomie County: 88.6 %Pottawatomie County88.6Oklahoma County: 88.5 %Oklahoma County88.5Custer County: 88.4 %Custer County88.4Stephens County: 88.3 %Stephens County88.3Ellis County: 88.2 %Ellis County88.2Okmulgee County: 88.2 %Okmulgee County88.2Woodward County: 88 %Woodward County88Pawnee County: 87.9 %Pawnee County87.9Carter County: 87.8 %Carter County87.8Garvin County: 87.7 %Garvin County87.7Bryan County: 87.6 %Bryan County87.6Harper County: 87.6 %Harper County87.6Garfield County: 87.5 %Garfield County87.5Roger Mills County: 93.6 %Roger Mills County93.6Payne County: 93.2 %Payne County93.2Dewey County: 92.6 %Dewey County92.6Cleveland County: 92.3 %Cleveland County92.3Canadian County: 92.2 %Canadian County92.2Rogers County: 92.2 %Rogers County92.2Logan County: 91.7 %Logan County91.7Wagoner County: 91.7 %Wagoner County91.7Washington County: 91.5 %Washington County91.5Grant County: 91.2 %Grant County91.2Noble County: 91.1 %Noble County91.1Comanche County: 90.6 %Comanche County90.6Kay County: 90.5 %Kay County90.5Grady County: 90.5 %Grady County90.5Creek County: 90.5 %Creek County90.5Pontotoc County: 90.5 %Pontotoc County90.5Nowata County: 90.4 %Nowata County90.4Kingfisher County: 90.2 %Kingfisher County90.2Major County: 90.1 %Major County90.1Cherokee County: 89.9 %Cherokee County89.9Tulsa County: 89.8 %Tulsa County89.8Osage County: 89.6 %Osage County89.6Mayes County: 89.4 %Mayes County89.4Lincoln County: 89 %Lincoln County89Washita County: 88.9 %Washita County88.9McClain County: 88.7 %McClain County88.7Woods County: 88.6 %Woods County88.6Pottawatomie County: 88.6 %Pottawatomie County88.6Oklahoma County: 88.5 %Oklahoma County88.5Custer County: 88.4 %Custer County88.4Stephens County: 88.3 %Stephens County88.3Ellis County: 88.2 %Ellis County88.2Okmulgee County: 88.2 %Okmulgee County88.2Woodward County: 88 %Woodward County88Pawnee County: 87.9 %Pawnee County87.9Carter County: 87.8 %Carter County87.8Garvin County: 87.7 %Garvin County87.7Bryan County: 87.6 %Bryan County87.6Harper County: 87.6 %Harper County87.6Garfield County: 87.5 %Garfield County87.5
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Roger Mills County93.6+1.1 pts
2Payne County93.20 pts
3Dewey County92.6-0.5 pts
4Cleveland County92.3+0.1 pts
5Canadian County92.2+0.2 pts
5Rogers County92.20 pts
7Logan County91.7-0.1 pts
8Wagoner County91.7+0.1 pts
9Washington County91.50 pts
10Grant County91.2-0.8 pts
11Noble County91.1+0.8 pts
12Comanche County90.6+0.3 pts
13Kay County90.5+1.2 pts
14Grady County90.5-0.1 pts
15Creek County90.5+0.2 pts
16Pontotoc County90.5+1 pts
17Nowata County90.4+0.4 pts
18Kingfisher County90.2-0.8 pts
19Major County90.1-0.6 pts
20Cherokee County89.9+1.5 pts
21Tulsa County89.8-0.1 pts
22Osage County89.6+0.1 pts
23Mayes County89.4+0.2 pts
24Lincoln County89-0.1 pts
25Washita County88.9-0.2 pts
26McClain County88.7-0.2 pts
27Woods County88.6-1.3 pts
28Pottawatomie County88.6-0.1 pts
29Oklahoma County88.5-0 pts
30Custer County88.4+0.4 pts
31Stephens County88.3-0.4 pts
32Ellis County88.2+1.7 pts
33Okmulgee County88.2+1 pts
34Woodward County88+0.8 pts
35Pawnee County87.9+0.2 pts
36Carter County87.8+0.4 pts
37Garvin County87.7+0.4 pts
38Bryan County87.6+0.4 pts
38Harper County87.6-2.5 pts
40Garfield County87.5+0.7 pts
40Johnston County87.5-0.6 pts
42Delaware County87.4+1.6 pts
43Pittsburg County87.3+0.6 pts
44Ottawa County87.2+0.5 pts
45Muskogee County87+0.1 pts
46Caddo County86.7+0.1 pts
47Jackson County86.7+0.8 pts
48McIntosh County86.6+0.2 pts
49Choctaw County86.3+1.9 pts
50Craig County86.2+1.2 pts
51Kiowa County86+0.4 pts
52Alfalfa County85.8-1.6 pts
53Murray County85.8-1 pts
54McCurtain County85.7+0.7 pts
55Haskell County85.7+1.2 pts
56Pushmataha County85.4+1.3 pts
57Le Flore County85.3+0.5 pts
58Cotton County85.3+1.3 pts
59Cimarron County85.3-2.2 pts
60Love County85.3+1.4 pts
60Seminole County85.3-0.1 pts
62Beaver County85.1-0.4 pts
63Jefferson County84.80 pts
64Latimer County84.7-0.8 pts
64Marshall County84.7+2.8 pts
66Blaine County84.7+2 pts
67Sequoyah County84.5+1 pts
68Coal County84.4+0.7 pts
69Beckham County84.3-0.5 pts
70Hughes County84.1-0.1 pts
71Atoka County83.6+0.9 pts
72Harmon County83.5+3.5 pts
73Okfuskee County83.3-0.2 pts
74Adair County82.8+1.1 pts
75Greer County81.7+0.1 pts
76Tillman County81.5+2 pts
77Texas County75-0.4 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 Oklahoma 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 Oklahoma 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/oklahoma-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 Oklahoma 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/oklahoma-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 Oklahoma 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/oklahoma-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_oklahoma_by_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 Oklahoma 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/oklahoma-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 Oklahoma 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/oklahoma-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/oklahoma-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  - 
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Questions

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

Roger Mills County, with 93.6% in 2023, according to the U.S. Census Bureau.

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

Texas County, with 75% 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 Oklahoma: more rankings