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

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

Hamilton County had the highest high school graduate or higher, population 25 and over of 92 counties in 2021, at 97.2%. LaGrange County had the lowest, at 59.6%. The median was 89.5% and the figure for Indiana was 89.8%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest97.2Hamilton County
Lowest59.6LaGrange County
Median89.592 counties
Indiana89.8History

Map of counties, 2021

Adams County: 86.3 %Allen County: 90.1 %Bartholomew County: 91.6 %Benton County: 88.4 %Blackford County: 90.9 %Boone County: 94.4 %Brown County: 93.1 %Carroll County: 89.1 %Cass County: 84.7 %Clark County: 90.9 %Clay County: 91.2 %Clinton County: 86.8 %Crawford County: 82.9 %Daviess County: 76.9 %Dearborn County: 90.8 %Decatur County: 91.8 %DeKalb County: 91 %Delaware County: 90.5 %Dubois County: 90 %Elkhart County: 81.9 %Fayette County: 84.9 %Floyd County: 91.3 %Fountain County: 87.9 %Franklin County: 88.3 %Fulton County: 87.5 %Gibson County: 91.5 %Grant County: 88.3 %Greene County: 88.4 %Hamilton County: 97.2 %Hancock County: 93.3 %Harrison County: 90.2 %Hendricks County: 95.1 %Henry County: 90.8 %Howard County: 90.9 %Huntington County: 92.8 %Jackson County: 89.1 %Jasper County: 91.4 %Jay County: 88 %Jefferson County: 89.5 %Jennings County: 88.9 %Johnson County: 92.8 %Knox County: 88.7 %Kosciusko County: 87.7 %LaGrange County: 59.6 %Lake County: 89.8 %LaPorte County: 89.4 %Lawrence County: 88.8 %Madison County: 89.8 %Marion County: 86.9 %Marshall County: 85.5 %Martin County: 87.3 %Miami County: 86.4 %Monroe County: 93.9 %Montgomery County: 90.5 %Morgan County: 88.5 %Newton County: 87.8 %Noble County: 82.8 %Ohio County: 89.3 %Orange County: 84.9 %Owen County: 85.9 %Parke County: 84.9 %Perry County: 90.8 %Pike County: 88.2 %Porter County: 94.1 %Posey County: 92.7 %Pulaski County: 87.2 %Putnam County: 89.1 %Randolph County: 89.1 %Ripley County: 90.2 %Rush County: 89.7 %St. Joseph County: 91 %Scott County: 81 %Shelby County: 89.1 %Spencer County: 91.4 %Starke County: 85.6 %Steuben County: 92.4 %Sullivan County: 87.4 %Switzerland County: 85 %Tippecanoe County: 92.6 %Tipton County: 90.6 %Union County: 88.2 %Vanderburgh County: 91 %Vermillion County: 91.4 %Vigo County: 89.6 %Wabash County: 89.9 %Warren County: 93.5 %Warrick County: 94.6 %Washington County: 86.7 %Wayne County: 88.2 %Wells County: 93.2 %White County: 89.1 %Whitley County: 92.1 %
  • Under 86
  • 86 to 88
  • 88 to 89
  • 89 to 91
  • 91 to 92
  • 92 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Hamilton County: 97.2 %Hamilton County97.2Hendricks County: 95.1 %Hendricks County95.1Warrick County: 94.6 %Warrick County94.6Boone County: 94.4 %Boone County94.4Porter County: 94.1 %Porter County94.1Monroe County: 93.9 %Monroe County93.9Warren County: 93.5 %Warren County93.5Hancock County: 93.3 %Hancock County93.3Wells County: 93.2 %Wells County93.2Brown County: 93.1 %Brown County93.1Huntington County: 92.8 %Huntington County92.8Johnson County: 92.8 %Johnson County92.8Posey County: 92.7 %Posey County92.7Tippecanoe County: 92.6 %Tippecanoe County92.6Steuben County: 92.4 %Steuben County92.4Whitley County: 92.1 %Whitley County92.1Decatur County: 91.8 %Decatur County91.8Bartholomew County: 91.6 %Bartholomew County91.6Gibson County: 91.5 %Gibson County91.5Jasper County: 91.4 %Jasper County91.4Vermillion County: 91.4 %Vermillion County91.4Spencer County: 91.4 %Spencer County91.4Floyd County: 91.3 %Floyd County91.3Clay County: 91.2 %Clay County91.2St. Joseph County: 91 %St. Joseph County91DeKalb County: 91 %DeKalb County91Vanderburgh County: 91 %Vanderburgh County91Clark County: 90.9 %Clark County90.9Howard County: 90.9 %Howard County90.9Blackford County: 90.9 %Blackford County90.9Henry County: 90.8 %Henry County90.8Perry County: 90.8 %Perry County90.8Dearborn County: 90.8 %Dearborn County90.8Tipton County: 90.6 %Tipton County90.6Montgomery County: 90.5 %Montgomery County90.5Delaware County: 90.5 %Delaware County90.5Harrison County: 90.2 %Harrison County90.2Ripley County: 90.2 %Ripley County90.2Allen County: 90.1 %Allen County90.1Dubois County: 90 %Dubois County90Hamilton County: 97.2 %Hamilton County97.2Hendricks County: 95.1 %Hendricks County95.1Warrick County: 94.6 %Warrick County94.6Boone County: 94.4 %Boone County94.4Porter County: 94.1 %Porter County94.1Monroe County: 93.9 %Monroe County93.9Warren County: 93.5 %Warren County93.5Hancock County: 93.3 %Hancock County93.3Wells County: 93.2 %Wells County93.2Brown County: 93.1 %Brown County93.1Huntington County: 92.8 %Huntington County92.8Johnson County: 92.8 %Johnson County92.8Posey County: 92.7 %Posey County92.7Tippecanoe County: 92.6 %Tippecanoe County92.6Steuben County: 92.4 %Steuben County92.4Whitley County: 92.1 %Whitley County92.1Decatur County: 91.8 %Decatur County91.8Bartholomew County: 91.6 %Bartholomew County91.6Gibson County: 91.5 %Gibson County91.5Jasper County: 91.4 %Jasper County91.4Vermillion County: 91.4 %Vermillion County91.4Spencer County: 91.4 %Spencer County91.4Floyd County: 91.3 %Floyd County91.3Clay County: 91.2 %Clay County91.2St. Joseph County: 91 %St. Joseph County91DeKalb County: 91 %DeKalb County91Vanderburgh County: 91 %Vanderburgh County91Clark County: 90.9 %Clark County90.9Howard County: 90.9 %Howard County90.9Blackford County: 90.9 %Blackford County90.9Henry County: 90.8 %Henry County90.8Perry County: 90.8 %Perry County90.8Dearborn County: 90.8 %Dearborn County90.8Tipton County: 90.6 %Tipton County90.6Montgomery County: 90.5 %Montgomery County90.5Delaware County: 90.5 %Delaware County90.5Harrison County: 90.2 %Harrison County90.2Ripley County: 90.2 %Ripley County90.2Allen County: 90.1 %Allen County90.1Dubois County: 90 %Dubois County90
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Hamilton County97.2
2Hendricks County95.1
3Warrick County94.6
4Boone County94.4
5Porter County94.1
6Monroe County93.9
7Warren County93.5
8Hancock County93.3
9Wells County93.2
10Brown County93.1
11Huntington County92.8
12Johnson County92.8
13Posey County92.7
14Tippecanoe County92.6
15Steuben County92.4
16Whitley County92.1
17Decatur County91.8
18Bartholomew County91.6
19Gibson County91.5
20Jasper County91.4
21Vermillion County91.4
22Spencer County91.4
23Floyd County91.3
24Clay County91.2
25St. Joseph County91
26DeKalb County91
26Vanderburgh County91
28Clark County90.9
29Howard County90.9
30Blackford County90.9
31Henry County90.8
32Perry County90.8
33Dearborn County90.8
34Tipton County90.6
35Montgomery County90.5
36Delaware County90.5
37Harrison County90.2
38Ripley County90.2
39Allen County90.1
40Dubois County90
41Wabash County89.9
42Lake County89.8
43Madison County89.8
44Rush County89.7
45Vigo County89.6
46Jefferson County89.5
47LaPorte County89.4
48Ohio County89.3
49Jackson County89.1
49Putnam County89.1
49White County89.1
52Carroll County89.1
53Shelby County89.1
54Randolph County89.1
55Jennings County88.9
56Lawrence County88.8
57Knox County88.7
58Morgan County88.5
59Benton County88.4
60Greene County88.4
61Franklin County88.3
61Grant County88.3
63Pike County88.2
64Union County88.2
65Wayne County88.2
66Jay County88
67Fountain County87.9
68Newton County87.8
69Kosciusko County87.7
70Fulton County87.5
71Sullivan County87.4
72Martin County87.3
73Pulaski County87.2
74Marion County86.9
75Clinton County86.8
76Washington County86.7
77Miami County86.4
78Adams County86.3
79Owen County85.9
80Starke County85.6
81Marshall County85.5
82Switzerland County85
83Fayette County84.9
84Orange County84.9
84Parke County84.9
86Cass County84.7
87Crawford County82.9
88Noble County82.8
89Elkhart County81.9
90Scott County81
91Daviess County76.9
92LaGrange County59.6

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/2021/table-based-SF/data/5YRData/acsdt5y2021-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 Indiana by high school graduate or higher, population 25 and over, 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-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 Indiana by high school graduate or higher, population 25 and over, 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/indiana-counties?period=2021. 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 Indiana by high school graduate or higher, population 25 and over, 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Also distributed by Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/indiana-counties?period=2021.

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 Indiana by high school graduate or higher, population 25 and over, 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat, via Invokely: https://invokely.ai/rankings/high-school-graduate-or-higher/indiana-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_indiana_by_2021,
  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 Indiana by high school graduate or higher, population 25 and over, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/indiana-counties?period=2021. 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/2021/table-based-SF/data/5YRData/acsdt5y2021-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 Indiana by high school graduate or higher, population 25 and over, 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat
L2  - https://invokely.ai/rankings/high-school-graduate-or-higher/indiana-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/indiana-counties?period=2021.
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/2021/table-based-SF/data/5YRData/acsdt5y2021-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 Indiana 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":"Indiana","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=high_school_graduate_share&level=province&within=Indiana&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?

Hamilton County, with 97.2% in 2021, according to the U.S. Census Bureau.

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

LaGrange County, with 59.6% in 2021.

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 Indiana: more rankings