Data / Rankings / Graduate or professional degree, population 25 and over / Counties in Colorado

Counties in Colorado by graduate or professional degree, population 25 and over

Boulder County had the highest graduate or professional degree, population 25 and over of 64 counties in 2021, at 28.3%. Crowley County had the lowest, at 3%. The median was 10.2% and the figure for Colorado was 16.1%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest28.3Boulder County
Lowest3Crowley County
Median10.264 counties
Colorado16.1History

Map of counties, 2021

Adams County: 8.4 %Alamosa County: 10.3 %Arapahoe County: 16.6 %Archuleta County: 13.9 %Baca County: 5.9 %Bent County: 5.8 %Boulder County: 28.3 %Broomfield County: 21.9 %Chaffee County: 15.7 %Cheyenne County: 6.5 %Clear Creek County: 24.8 %Conejos County: 8.4 %Costilla County: 9.1 %Crowley County: 3 %Custer County: 14.8 %Delta County: 7.9 %Denver County: 20.5 %Dolores County: 10.2 %Douglas County: 21.1 %Eagle County: 15.5 %Elbert County: 10.2 %El Paso County: 15.5 %Fremont County: 6.4 %Garfield County: 11.3 %Gilpin County: 24.4 %Grand County: 13.6 %Gunnison County: 16.3 %Hinsdale County: 16.8 %Huerfano County: 8.9 %Jackson County: 10.5 %Jefferson County: 17.7 %Kiowa County: 6.8 %Kit Carson County: 6.9 %Lake County: 13.3 %La Plata County: 16.7 %Larimer County: 19.8 %Las Animas County: 7 %Lincoln County: 3.8 %Logan County: 8 %Mesa County: 9.9 %Mineral County: 15.8 %Moffat County: 5.7 %Montezuma County: 12 %Montrose County: 8.9 %Morgan County: 5.4 %Otero County: 7.7 %Ouray County: 17.9 %Park County: 10.1 %Phillips County: 8.8 %Pitkin County: 22.4 %Prowers County: 7.6 %Pueblo County: 8.2 %Rio Blanco County: 7.7 %Rio Grande County: 8.6 %Routt County: 17.5 %Saguache County: 12.5 %San Juan County: 13.5 %San Miguel County: 16.2 %Sedgwick County: 7.5 %Summit County: 17.9 %Teller County: 16 %Washington County: 7.5 %Weld County: 10.2 %Yuma County: 9.4 %
  • Under 7.2
  • 7.2 to 8.6
  • 8.6 to 10
  • 10 to 15
  • 15 to 18
  • 18 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

Boulder County: 28.3 %Boulder County28.3Clear Creek County: 24.8 %Clear Creek County24.8Gilpin County: 24.4 %Gilpin County24.4Pitkin County: 22.4 %Pitkin County22.4Broomfield County: 21.9 %Broomfield County21.9Douglas County: 21.1 %Douglas County21.1Denver County: 20.5 %Denver County20.5Larimer County: 19.8 %Larimer County19.8Summit County: 17.9 %Summit County17.9Ouray County: 17.9 %Ouray County17.9Jefferson County: 17.7 %Jefferson County17.7Routt County: 17.5 %Routt County17.5Hinsdale County: 16.8 %Hinsdale County16.8La Plata County: 16.7 %La Plata County16.7Arapahoe County: 16.6 %Arapahoe County16.6Gunnison County: 16.3 %Gunnison County16.3San Miguel County: 16.2 %San Miguel County16.2Teller County: 16 %Teller County16Mineral County: 15.8 %Mineral County15.8Chaffee County: 15.7 %Chaffee County15.7Eagle County: 15.5 %Eagle County15.5El Paso County: 15.5 %El Paso County15.5Custer County: 14.8 %Custer County14.8Archuleta County: 13.9 %Archuleta County13.9Grand County: 13.6 %Grand County13.6San Juan County: 13.5 %San Juan County13.5Lake County: 13.3 %Lake County13.3Saguache County: 12.5 %Saguache County12.5Montezuma County: 12 %Montezuma County12Garfield County: 11.3 %Garfield County11.3Jackson County: 10.5 %Jackson County10.5Alamosa County: 10.3 %Alamosa County10.3Weld County: 10.2 %Weld County10.2Dolores County: 10.2 %Dolores County10.2Elbert County: 10.2 %Elbert County10.2Park County: 10.1 %Park County10.1Mesa County: 9.9 %Mesa County9.9Yuma County: 9.4 %Yuma County9.4Costilla County: 9.1 %Costilla County9.1Montrose County: 8.9 %Montrose County8.9Boulder County: 28.3 %Boulder County28.3Clear Creek County: 24.8 %Clear Creek County24.8Gilpin County: 24.4 %Gilpin County24.4Pitkin County: 22.4 %Pitkin County22.4Broomfield County: 21.9 %Broomfield County21.9Douglas County: 21.1 %Douglas County21.1Denver County: 20.5 %Denver County20.5Larimer County: 19.8 %Larimer County19.8Summit County: 17.9 %Summit County17.9Ouray County: 17.9 %Ouray County17.9Jefferson County: 17.7 %Jefferson County17.7Routt County: 17.5 %Routt County17.5Hinsdale County: 16.8 %Hinsdale County16.8La Plata County: 16.7 %La Plata County16.7Arapahoe County: 16.6 %Arapahoe County16.6Gunnison County: 16.3 %Gunnison County16.3San Miguel County: 16.2 %San Miguel County16.2Teller County: 16 %Teller County16Mineral County: 15.8 %Mineral County15.8Chaffee County: 15.7 %Chaffee County15.7Eagle County: 15.5 %Eagle County15.5El Paso County: 15.5 %El Paso County15.5Custer County: 14.8 %Custer County14.8Archuleta County: 13.9 %Archuleta County13.9Grand County: 13.6 %Grand County13.6San Juan County: 13.5 %San Juan County13.5Lake County: 13.3 %Lake County13.3Saguache County: 12.5 %Saguache County12.5Montezuma County: 12 %Montezuma County12Garfield County: 11.3 %Garfield County11.3Jackson County: 10.5 %Jackson County10.5Alamosa County: 10.3 %Alamosa County10.3Weld County: 10.2 %Weld County10.2Dolores County: 10.2 %Dolores County10.2Elbert County: 10.2 %Elbert County10.2Park County: 10.1 %Park County10.1Mesa County: 9.9 %Mesa County9.9Yuma County: 9.4 %Yuma County9.4Costilla County: 9.1 %Costilla County9.1Montrose County: 8.9 %Montrose County8.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Boulder County28.3
2Clear Creek County24.8
3Gilpin County24.4
4Pitkin County22.4
5Broomfield County21.9
6Douglas County21.1
7Denver County20.5
8Larimer County19.8
9Summit County17.9
10Ouray County17.9
11Jefferson County17.7
12Routt County17.5
13Hinsdale County16.8
14La Plata County16.7
15Arapahoe County16.6
16Gunnison County16.3
17San Miguel County16.2
18Teller County16
19Mineral County15.8
20Chaffee County15.7
21Eagle County15.5
22El Paso County15.5
23Custer County14.8
24Archuleta County13.9
25Grand County13.6
26San Juan County13.5
27Lake County13.3
28Saguache County12.5
29Montezuma County12
30Garfield County11.3
31Jackson County10.5
32Alamosa County10.3
33Weld County10.2
34Dolores County10.2
35Elbert County10.2
36Park County10.1
37Mesa County9.9
38Yuma County9.4
39Costilla County9.1
40Montrose County8.9
41Huerfano County8.9
42Phillips County8.8
43Rio Grande County8.6
44Adams County8.4
44Conejos County8.4
46Pueblo County8.2
47Logan County8
48Delta County7.9
49Otero County7.7
50Rio Blanco County7.7
51Prowers County7.6
52Washington County7.5
53Sedgwick County7.5
54Las Animas County7
55Kit Carson County6.9
56Kiowa County6.8
57Cheyenne County6.5
58Fremont County6.4
59Baca County5.9
60Bent County5.8
61Moffat County5.7
62Morgan County5.4
63Lincoln County3.8
64Crowley County3

Other periods

About this ranking

People aged 25 and over whose highest degree is a master's, professional school or doctorate degree, 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.

A subset of bachelors_degree_share, which also counts people whose highest degree is a bachelor's.

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 master's, professional school or doctorate degree 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 master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs (Counties in Colorado by graduate or professional degree, 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 master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs, Counties in Colorado by graduate or professional degree, 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/graduate-or-professional-degree/colorado-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 master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs. Counties in Colorado by graduate or professional degree, 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/graduate-or-professional-degree/colorado-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B15003: population 25 years and over with a master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs, Counties in Colorado by graduate or professional degree, 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/graduate-or-professional-degree/colorado-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_colorado_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B15003: population 25 years and over with a master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs: Counties in Colorado by graduate or professional degree, 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/graduate-or-professional-degree/colorado-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a master's, professional school or doctorate degree 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 master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs: Counties in Colorado by graduate or professional degree, 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/graduate-or-professional-degree/colorado-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/graduate-or-professional-degree/colorado-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 master's, professional school or doctorate degree 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 Colorado by graduate or professional degree, population 25 and over using official data, and cite the source.
rank_places {"indicator":"graduate_degree_share","level":"province","within":"Colorado","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=graduate_degree_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 graduate or professional degree, population 25 and over?

Boulder County, with 28.3% in 2021, according to the U.S. Census Bureau.

Which county has the lowest graduate or professional degree, population 25 and over?

Crowley County, with 3% 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 master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs. Retrieved 2026-10-12.

Graduate or professional degree, population 25 and over: other rankings

Counties in Colorado: more rankings