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

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

Hinsdale County had the highest high school graduate or higher, population 25 and over of 64 counties in 2024, at 100%. Crowley County had the lowest, at 81.4%. The median was 92.7% and the figure for Colorado was 92.9%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest100Hinsdale County
Lowest81.4Crowley County
Median92.764 counties
Colorado92.9History

Map of counties, 2024

Adams County: 85.2 %Alamosa County: 88.6 %Arapahoe County: 91.9 %Archuleta County: 95.4 %Baca County: 87.7 %Bent County: 82.9 %Boulder County: 95.8 %Broomfield County: 96.4 %Chaffee County: 94.7 %Cheyenne County: 92.2 %Clear Creek County: 93.5 %Conejos County: 90.7 %Costilla County: 90 %Crowley County: 81.4 %Custer County: 95.3 %Delta County: 90.8 %Denver County: 91.2 %Dolores County: 95.5 %Douglas County: 97.9 %Eagle County: 95.1 %Elbert County: 96.5 %El Paso County: 95.1 %Fremont County: 90.8 %Garfield County: 89.4 %Gilpin County: 93.4 %Grand County: 95.7 %Gunnison County: 97.6 %Hinsdale County: 100 %Huerfano County: 93.1 %Jackson County: 91.5 %Jefferson County: 95.8 %Kiowa County: 92.6 %Kit Carson County: 91.1 %Lake County: 93.8 %La Plata County: 96.5 %Larimer County: 96.5 %Las Animas County: 90.2 %Lincoln County: 86.2 %Logan County: 89.9 %Mesa County: 92.9 %Mineral County: 98.4 %Moffat County: 90.9 %Montezuma County: 91.5 %Montrose County: 91.6 %Morgan County: 85.6 %Otero County: 88.7 %Ouray County: 97.4 %Park County: 97.9 %Phillips County: 89.8 %Pitkin County: 96.4 %Prowers County: 86.6 %Pueblo County: 90.8 %Rio Blanco County: 95.8 %Rio Grande County: 88.5 %Routt County: 97.4 %Saguache County: 91.9 %San Juan County: 100 %San Miguel County: 98.2 %Sedgwick County: 95.2 %Summit County: 95.9 %Teller County: 96.2 %Washington County: 89.9 %Weld County: 88.7 %Yuma County: 81.5 %
  • Under 89
  • 89 to 91
  • 91 to 93
  • 93 to 95
  • 95 to 96
  • 96 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

Hinsdale County: 100 %Hinsdale County100San Juan County: 100 %San Juan County100Mineral County: 98.4 %Mineral County98.4San Miguel County: 98.2 %San Miguel County98.2Douglas County: 97.9 %Douglas County97.9Park County: 97.9 %Park County97.9Gunnison County: 97.6 %Gunnison County97.6Routt County: 97.4 %Routt County97.4Ouray County: 97.4 %Ouray County97.4La Plata County: 96.5 %La Plata County96.5Larimer County: 96.5 %Larimer County96.5Elbert County: 96.5 %Elbert County96.5Broomfield County: 96.4 %Broomfield County96.4Pitkin County: 96.4 %Pitkin County96.4Teller County: 96.2 %Teller County96.2Summit County: 95.9 %Summit County95.9Boulder County: 95.8 %Boulder County95.8Jefferson County: 95.8 %Jefferson County95.8Rio Blanco County: 95.8 %Rio Blanco County95.8Grand County: 95.7 %Grand County95.7Dolores County: 95.5 %Dolores County95.5Archuleta County: 95.4 %Archuleta County95.4Custer County: 95.3 %Custer County95.3Sedgwick County: 95.2 %Sedgwick County95.2Eagle County: 95.1 %Eagle County95.1El Paso County: 95.1 %El Paso County95.1Chaffee County: 94.7 %Chaffee County94.7Lake County: 93.8 %Lake County93.8Clear Creek County: 93.5 %Clear Creek County93.5Gilpin County: 93.4 %Gilpin County93.4Huerfano County: 93.1 %Huerfano County93.1Mesa County: 92.9 %Mesa County92.9Kiowa County: 92.6 %Kiowa County92.6Cheyenne County: 92.2 %Cheyenne County92.2Saguache County: 91.9 %Saguache County91.9Arapahoe County: 91.9 %Arapahoe County91.9Montrose County: 91.6 %Montrose County91.6Jackson County: 91.5 %Jackson County91.5Montezuma County: 91.5 %Montezuma County91.5Denver County: 91.2 %Denver County91.2Hinsdale County: 100 %Hinsdale County100San Juan County: 100 %San Juan County100Mineral County: 98.4 %Mineral County98.4San Miguel County: 98.2 %San Miguel County98.2Douglas County: 97.9 %Douglas County97.9Park County: 97.9 %Park County97.9Gunnison County: 97.6 %Gunnison County97.6Routt County: 97.4 %Routt County97.4Ouray County: 97.4 %Ouray County97.4La Plata County: 96.5 %La Plata County96.5Larimer County: 96.5 %Larimer County96.5Elbert County: 96.5 %Elbert County96.5Broomfield County: 96.4 %Broomfield County96.4Pitkin County: 96.4 %Pitkin County96.4Teller County: 96.2 %Teller County96.2Summit County: 95.9 %Summit County95.9Boulder County: 95.8 %Boulder County95.8Jefferson County: 95.8 %Jefferson County95.8Rio Blanco County: 95.8 %Rio Blanco County95.8Grand County: 95.7 %Grand County95.7Dolores County: 95.5 %Dolores County95.5Archuleta County: 95.4 %Archuleta County95.4Custer County: 95.3 %Custer County95.3Sedgwick County: 95.2 %Sedgwick County95.2Eagle County: 95.1 %Eagle County95.1El Paso County: 95.1 %El Paso County95.1Chaffee County: 94.7 %Chaffee County94.7Lake County: 93.8 %Lake County93.8Clear Creek County: 93.5 %Clear Creek County93.5Gilpin County: 93.4 %Gilpin County93.4Huerfano County: 93.1 %Huerfano County93.1Mesa County: 92.9 %Mesa County92.9Kiowa County: 92.6 %Kiowa County92.6Cheyenne County: 92.2 %Cheyenne County92.2Saguache County: 91.9 %Saguache County91.9Arapahoe County: 91.9 %Arapahoe County91.9Montrose County: 91.6 %Montrose County91.6Jackson County: 91.5 %Jackson County91.5Montezuma County: 91.5 %Montezuma County91.5Denver County: 91.2 %Denver County91.2
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Hinsdale County1000 pts
1San Juan County1000 pts
3Mineral County98.4+0.6 pts
4San Miguel County98.2-0.1 pts
5Douglas County97.9-0.1 pts
5Park County97.9+0.6 pts
7Gunnison County97.6-0.6 pts
8Routt County97.4+0.9 pts
9Ouray County97.4+0.1 pts
10La Plata County96.5+0.1 pts
11Larimer County96.5-0.2 pts
12Elbert County96.5-0.4 pts
13Broomfield County96.4+0.3 pts
14Pitkin County96.4-0.6 pts
15Teller County96.2+0.1 pts
16Summit County95.9+0.9 pts
17Boulder County95.8+0.3 pts
18Jefferson County95.8+0.3 pts
19Rio Blanco County95.8+2.5 pts
20Grand County95.7+1.3 pts
21Dolores County95.5-0.7 pts
22Archuleta County95.4+0.1 pts
23Custer County95.3-1.2 pts
24Sedgwick County95.2+4 pts
25Eagle County95.1+1.9 pts
26El Paso County95.1-0 pts
27Chaffee County94.7+0.1 pts
28Lake County93.8+1.9 pts
29Clear Creek County93.5-1.1 pts
30Gilpin County93.4-0.6 pts
31Huerfano County93.1+0.2 pts
32Mesa County92.9+0.5 pts
33Kiowa County92.6+1.7 pts
34Cheyenne County92.2+0.5 pts
35Saguache County91.9+3.7 pts
36Arapahoe County91.9-0 pts
37Montrose County91.6+0.6 pts
38Jackson County91.5+7 pts
39Montezuma County91.5+0.5 pts
40Denver County91.2-0.2 pts
41Kit Carson County91.1+2.1 pts
42Moffat County90.9-0.7 pts
43Pueblo County90.8+0.4 pts
44Fremont County90.8+0.2 pts
45Delta County90.8-0.2 pts
46Conejos County90.7+1.6 pts
47Las Animas County90.2+0.6 pts
48Costilla County90+0.3 pts
49Washington County89.9+0.3 pts
50Logan County89.9+0.5 pts
51Phillips County89.8-0.7 pts
52Garfield County89.4+0.9 pts
53Weld County88.7+0.2 pts
54Otero County88.7-0.5 pts
55Alamosa County88.6-0.5 pts
56Rio Grande County88.5-0.9 pts
57Baca County87.7+1.9 pts
58Prowers County86.6+1.8 pts
59Lincoln County86.2-1.9 pts
60Morgan County85.6+1 pts
61Adams County85.2+0.2 pts
62Bent County82.9+1.7 pts
63Yuma County81.5-2.3 pts
64Crowley County81.4-1.5 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/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 Colorado 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 Colorado 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/colorado-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 Colorado 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/colorado-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 Colorado 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/colorado-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_colorado_by_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 Colorado 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/colorado-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 Colorado 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/colorado-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/colorado-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  -
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 Colorado 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":"Colorado","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=high_school_graduate_share&level=province&within=Colorado&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?

Hinsdale County, with 100% in 2024, according to the U.S. Census Bureau.

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

Crowley County, with 81.4% 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 Colorado: more rankings