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

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

Williamson County had the highest high school graduate or higher, population 25 and over of 95 counties in 2023, at 95.9%. Lake County had the lowest, at 71.8%. The median was 87% and the figure for Tennessee was 89.6%. Source: the U.S. Census Bureau.

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Highest95.9Williamson County
Lowest71.8Lake County
Median8795 counties
Tennessee89.6History

Map of counties, 2023

Anderson County: 91.3 %Bedford County: 84.8 %Benton County: 87.2 %Bledsoe County: 79.6 %Blount County: 90.7 %Bradley County: 88.4 %Campbell County: 82.9 %Cannon County: 84.2 %Carroll County: 88.7 %Carter County: 88.7 %Cheatham County: 90.3 %Chester County: 85.7 %Claiborne County: 83.1 %Clay County: 83.8 %Cocke County: 83.7 %Coffee County: 87.4 %Crockett County: 86 %Cumberland County: 89.7 %Davidson County: 90.3 %Decatur County: 84.2 %DeKalb County: 82.7 %Dickson County: 89.2 %Dyer County: 89.2 %Fayette County: 90.9 %Fentress County: 83.2 %Franklin County: 90.8 %Gibson County: 88.4 %Giles County: 87.6 %Grainger County: 83.8 %Greene County: 86.7 %Grundy County: 80 %Hamblen County: 87.1 %Hamilton County: 91.1 %Hancock County: 78.9 %Hardeman County: 82.6 %Hardin County: 84.4 %Hawkins County: 86.4 %Haywood County: 82.8 %Henderson County: 89.3 %Henry County: 88.4 %Hickman County: 84.6 %Houston County: 87.3 %Humphreys County: 87.7 %Jackson County: 82.6 %Jefferson County: 88.9 %Johnson County: 81.3 %Knox County: 92.3 %Lake County: 71.8 %Lauderdale County: 82.8 %Lawrence County: 85.6 %Lewis County: 85.4 %Lincoln County: 87 %Loudon County: 88.9 %McMinn County: 86.2 %McNairy County: 87.4 %Macon County: 81.6 %Madison County: 90.3 %Marion County: 82.3 %Marshall County: 90.5 %Maury County: 92.5 %Meigs County: 82.9 %Monroe County: 86.3 %Montgomery County: 94.4 %Moore County: 89.1 %Morgan County: 83.4 %Obion County: 85 %Overton County: 81.8 %Perry County: 82.4 %Pickett County: 81.4 %Polk County: 85.7 %Putnam County: 88.8 %Rhea County: 84.1 %Roane County: 89.3 %Robertson County: 88.9 %Rutherford County: 92.4 %Scott County: 80.5 %Sequatchie County: 81.7 %Sevier County: 87.8 %Shelby County: 89.8 %Smith County: 87.3 %Stewart County: 89.9 %Sullivan County: 89.6 %Sumner County: 91.8 %Tipton County: 89.3 %Trousdale County: 85 %Unicoi County: 88 %Union County: 83.3 %Van Buren County: 84.2 %Warren County: 84.8 %Washington County: 91.1 %Wayne County: 83.5 %Weakley County: 88 %White County: 83.4 %Williamson County: 95.9 %Wilson County: 93.6 %
  • Under 83
  • 83 to 84
  • 84 to 87
  • 87 to 89
  • 89 to 90
  • 90 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

Williamson County: 95.9 %Williamson County95.9Montgomery County: 94.4 %Montgomery County94.4Wilson County: 93.6 %Wilson County93.6Maury County: 92.5 %Maury County92.5Rutherford County: 92.4 %Rutherford County92.4Knox County: 92.3 %Knox County92.3Sumner County: 91.8 %Sumner County91.8Anderson County: 91.3 %Anderson County91.3Washington County: 91.1 %Washington County91.1Hamilton County: 91.1 %Hamilton County91.1Fayette County: 90.9 %Fayette County90.9Franklin County: 90.8 %Franklin County90.8Blount County: 90.7 %Blount County90.7Marshall County: 90.5 %Marshall County90.5Davidson County: 90.3 %Davidson County90.3Cheatham County: 90.3 %Cheatham County90.3Madison County: 90.3 %Madison County90.3Stewart County: 89.9 %Stewart County89.9Shelby County: 89.8 %Shelby County89.8Cumberland County: 89.7 %Cumberland County89.7Sullivan County: 89.6 %Sullivan County89.6Roane County: 89.3 %Roane County89.3Henderson County: 89.3 %Henderson County89.3Tipton County: 89.3 %Tipton County89.3Dickson County: 89.2 %Dickson County89.2Dyer County: 89.2 %Dyer County89.2Moore County: 89.1 %Moore County89.1Jefferson County: 88.9 %Jefferson County88.9Loudon County: 88.9 %Loudon County88.9Robertson County: 88.9 %Robertson County88.9Putnam County: 88.8 %Putnam County88.8Carroll County: 88.7 %Carroll County88.7Carter County: 88.7 %Carter County88.7Bradley County: 88.4 %Bradley County88.4Henry County: 88.4 %Henry County88.4Gibson County: 88.4 %Gibson County88.4Unicoi County: 88 %Unicoi County88Weakley County: 88 %Weakley County88Sevier County: 87.8 %Sevier County87.8Humphreys County: 87.7 %Humphreys County87.7Williamson County: 95.9 %Williamson County95.9Montgomery County: 94.4 %Montgomery County94.4Wilson County: 93.6 %Wilson County93.6Maury County: 92.5 %Maury County92.5Rutherford County: 92.4 %Rutherford County92.4Knox County: 92.3 %Knox County92.3Sumner County: 91.8 %Sumner County91.8Anderson County: 91.3 %Anderson County91.3Washington County: 91.1 %Washington County91.1Hamilton County: 91.1 %Hamilton County91.1Fayette County: 90.9 %Fayette County90.9Franklin County: 90.8 %Franklin County90.8Blount County: 90.7 %Blount County90.7Marshall County: 90.5 %Marshall County90.5Davidson County: 90.3 %Davidson County90.3Cheatham County: 90.3 %Cheatham County90.3Madison County: 90.3 %Madison County90.3Stewart County: 89.9 %Stewart County89.9Shelby County: 89.8 %Shelby County89.8Cumberland County: 89.7 %Cumberland County89.7Sullivan County: 89.6 %Sullivan County89.6Roane County: 89.3 %Roane County89.3Henderson County: 89.3 %Henderson County89.3Tipton County: 89.3 %Tipton County89.3Dickson County: 89.2 %Dickson County89.2Dyer County: 89.2 %Dyer County89.2Moore County: 89.1 %Moore County89.1Jefferson County: 88.9 %Jefferson County88.9Loudon County: 88.9 %Loudon County88.9Robertson County: 88.9 %Robertson County88.9Putnam County: 88.8 %Putnam County88.8Carroll County: 88.7 %Carroll County88.7Carter County: 88.7 %Carter County88.7Bradley County: 88.4 %Bradley County88.4Henry County: 88.4 %Henry County88.4Gibson County: 88.4 %Gibson County88.4Unicoi County: 88 %Unicoi County88Weakley County: 88 %Weakley County88Sevier County: 87.8 %Sevier County87.8Humphreys County: 87.7 %Humphreys County87.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Williamson County95.9-0.1 pts
2Montgomery County94.4+0.2 pts
3Wilson County93.6+0.5 pts
4Maury County92.5+0.7 pts
5Rutherford County92.4-0.3 pts
6Knox County92.3-0 pts
7Sumner County91.8+0.5 pts
8Anderson County91.3+0.5 pts
9Washington County91.1+0.1 pts
10Hamilton County91.1+0.4 pts
11Fayette County90.9+0.6 pts
12Franklin County90.8+0.9 pts
13Blount County90.7+0.3 pts
14Marshall County90.5+1.3 pts
15Davidson County90.30 pts
16Cheatham County90.3+1.4 pts
17Madison County90.3+0.7 pts
18Stewart County89.9+1.4 pts
19Shelby County89.8+0.2 pts
20Cumberland County89.7+0.4 pts
21Sullivan County89.6+0.3 pts
22Roane County89.3-0.6 pts
23Henderson County89.3+1.4 pts
23Tipton County89.3+0.2 pts
25Dickson County89.2+0.8 pts
26Dyer County89.2+1 pts
27Moore County89.1+3 pts
28Jefferson County88.9+0.9 pts
29Loudon County88.9+1.1 pts
30Robertson County88.9+0.2 pts
31Putnam County88.8-0.5 pts
32Carroll County88.7-0 pts
33Carter County88.7+1.2 pts
34Bradley County88.4+0.2 pts
35Henry County88.4+1.3 pts
36Gibson County88.4+0.8 pts
37Unicoi County88-0 pts
38Weakley County88+0.4 pts
39Sevier County87.8+0.1 pts
40Humphreys County87.7+0.4 pts
41Giles County87.6-0.5 pts
42Coffee County87.40 pts
43McNairy County87.4+1.1 pts
44Houston County87.3+3.3 pts
44Smith County87.3+0.7 pts
46Benton County87.2+2.5 pts
47Hamblen County87.1+0.7 pts
48Lincoln County87-1.1 pts
49Greene County86.7+0.3 pts
50Hawkins County86.4+0.2 pts
51Monroe County86.3+0.6 pts
52McMinn County86.2-0.2 pts
53Crockett County86+0.2 pts
54Chester County85.7+0.1 pts
55Polk County85.7+1 pts
56Lawrence County85.6-0.2 pts
57Lewis County85.4+1 pts
58Trousdale County85-0.9 pts
59Obion County85+0.2 pts
60Warren County84.8+1.1 pts
61Bedford County84.8-0.3 pts
62Hickman County84.6+2.1 pts
63Hardin County84.4-1 pts
64Cannon County84.2-1.4 pts
64Van Buren County84.2+3.6 pts
66Decatur County84.2-0.9 pts
67Rhea County84.1+0.8 pts
68Grainger County83.8+2.8 pts
69Clay County83.8-1.2 pts
70Cocke County83.7-0.8 pts
71Wayne County83.5+1.2 pts
72Morgan County83.4+2 pts
73White County83.4+1.6 pts
74Union County83.3+3 pts
75Fentress County83.2+2.3 pts
76Claiborne County83.1+0.9 pts
77Meigs County82.9+0.8 pts
78Campbell County82.9+1.7 pts
79Lauderdale County82.8+0.8 pts
80Haywood County82.8+0.5 pts
81DeKalb County82.7+1.6 pts
82Hardeman County82.6+1.7 pts
83Jackson County82.6+1.3 pts
84Perry County82.4+2.4 pts
85Marion County82.3+1.5 pts
86Overton County81.8-0.4 pts
87Sequatchie County81.7-2.3 pts
88Macon County81.6+3.6 pts
89Pickett County81.4-0.1 pts
90Johnson County81.3-1.1 pts
91Scott County80.5+0.1 pts
92Grundy County80+0.4 pts
93Bledsoe County79.6+1.5 pts
94Hancock County78.9-0.9 pts
95Lake County71.8-2.5 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 Tennessee 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 Tennessee 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/tennessee-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 Tennessee 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/tennessee-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 Tennessee 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/tennessee-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_tennessee_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 Tennessee 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/tennessee-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 Tennessee 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/tennessee-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/tennessee-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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Rank Counties in Tennessee 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?

Williamson County, with 95.9% in 2023, according to the U.S. Census Bureau.

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

Lake County, with 71.8% 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 Tennessee: more rankings