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

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

Latah County had the highest graduate or professional degree, population 25 and over of 44 counties in 2023, at 17.8%. Clark County had the lowest, at 3.6%. The median was 6.7% and the figure for Idaho was 10.4%. Source: the U.S. Census Bureau.

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Highest17.8Latah County
Lowest3.6Clark County
Median6.744 counties
Idaho10.4History

Map of counties, 2023

Ada County: 15.4 %Adams County: 7.8 %Bannock County: 10.7 %Bear Lake County: 6.4 %Benewah County: 6.7 %Bingham County: 5.9 %Blaine County: 12.5 %Boise County: 9.6 %Bonner County: 10 %Bonneville County: 10 %Boundary County: 7.7 %Butte County: 3.8 %Camas County: 9 %Canyon County: 6.7 %Caribou County: 5.8 %Cassia County: 7 %Clark County: 3.6 %Clearwater County: 6.2 %Custer County: 3.9 %Elmore County: 5.4 %Franklin County: 6.3 %Fremont County: 4.9 %Gem County: 5 %Gooding County: 6 %Idaho County: 5.8 %Jefferson County: 7.8 %Jerome County: 4.3 %Kootenai County: 9.8 %Latah County: 17.8 %Lemhi County: 8.7 %Lewis County: 5.5 %Lincoln County: 4.7 %Madison County: 11.9 %Minidoka County: 7.1 %Nez Perce County: 8.7 %Oneida County: 8.4 %Owyhee County: 4.4 %Payette County: 5.9 %Power County: 4.6 %Shoshone County: 4.1 %Teton County: 14.1 %Twin Falls County: 9.1 %Valley County: 10 %Washington County: 6.4 %
  • Under 4.7
  • 4.7 to 5.9
  • 5.9 to 6.7
  • 6.7 to 8.6
  • 8.6 to 10
  • 10 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Latah County: 17.8 %Latah County17.8Ada County: 15.4 %Ada County15.4Teton County: 14.1 %Teton County14.1Blaine County: 12.5 %Blaine County12.5Madison County: 11.9 %Madison County11.9Bannock County: 10.7 %Bannock County10.7Bonner County: 10 %Bonner County10Bonneville County: 10 %Bonneville County10Valley County: 10 %Valley County10Kootenai County: 9.8 %Kootenai County9.8Boise County: 9.6 %Boise County9.6Twin Falls County: 9.1 %Twin Falls County9.1Camas County: 9 %Camas County9Lemhi County: 8.7 %Lemhi County8.7Nez Perce County: 8.7 %Nez Perce County8.7Oneida County: 8.4 %Oneida County8.4Adams County: 7.8 %Adams County7.8Jefferson County: 7.8 %Jefferson County7.8Boundary County: 7.7 %Boundary County7.7Minidoka County: 7.1 %Minidoka County7.1Cassia County: 7 %Cassia County7Benewah County: 6.7 %Benewah County6.7Canyon County: 6.7 %Canyon County6.7Washington County: 6.4 %Washington County6.4Bear Lake County: 6.4 %Bear Lake County6.4Franklin County: 6.3 %Franklin County6.3Clearwater County: 6.2 %Clearwater County6.2Gooding County: 6 %Gooding County6Bingham County: 5.9 %Bingham County5.9Payette County: 5.9 %Payette County5.9Caribou County: 5.8 %Caribou County5.8Idaho County: 5.8 %Idaho County5.8Lewis County: 5.5 %Lewis County5.5Elmore County: 5.4 %Elmore County5.4Gem County: 5 %Gem County5Fremont County: 4.9 %Fremont County4.9Lincoln County: 4.7 %Lincoln County4.7Power County: 4.6 %Power County4.6Owyhee County: 4.4 %Owyhee County4.4Jerome County: 4.3 %Jerome County4.3Shoshone County: 4.1 %Shoshone County4.1Custer County: 3.9 %Custer County3.9Butte County: 3.8 %Butte County3.8Clark County: 3.6 %Clark County3.6Latah County: 17.8 %Latah County17.8Ada County: 15.4 %Ada County15.4Teton County: 14.1 %Teton County14.1Blaine County: 12.5 %Blaine County12.5Madison County: 11.9 %Madison County11.9Bannock County: 10.7 %Bannock County10.7Bonner County: 10 %Bonner County10Bonneville County: 10 %Bonneville County10Valley County: 10 %Valley County10Kootenai County: 9.8 %Kootenai County9.8Boise County: 9.6 %Boise County9.6Twin Falls County: 9.1 %Twin Falls County9.1Camas County: 9 %Camas County9Lemhi County: 8.7 %Lemhi County8.7Nez Perce County: 8.7 %Nez Perce County8.7Oneida County: 8.4 %Oneida County8.4Adams County: 7.8 %Adams County7.8Jefferson County: 7.8 %Jefferson County7.8Boundary County: 7.7 %Boundary County7.7Minidoka County: 7.1 %Minidoka County7.1Cassia County: 7 %Cassia County7Benewah County: 6.7 %Benewah County6.7Canyon County: 6.7 %Canyon County6.7Washington County: 6.4 %Washington County6.4Bear Lake County: 6.4 %Bear Lake County6.4Franklin County: 6.3 %Franklin County6.3Clearwater County: 6.2 %Clearwater County6.2Gooding County: 6 %Gooding County6Bingham County: 5.9 %Bingham County5.9Payette County: 5.9 %Payette County5.9Caribou County: 5.8 %Caribou County5.8Idaho County: 5.8 %Idaho County5.8Lewis County: 5.5 %Lewis County5.5Elmore County: 5.4 %Elmore County5.4Gem County: 5 %Gem County5Fremont County: 4.9 %Fremont County4.9Lincoln County: 4.7 %Lincoln County4.7Power County: 4.6 %Power County4.6Owyhee County: 4.4 %Owyhee County4.4Jerome County: 4.3 %Jerome County4.3Shoshone County: 4.1 %Shoshone County4.1Custer County: 3.9 %Custer County3.9Butte County: 3.8 %Butte County3.8Clark County: 3.6 %Clark County3.6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Latah County17.8+0.6 pts
2Ada County15.4+0.5 pts
3Teton County14.1+0.8 pts
4Blaine County12.5-0.9 pts
5Madison County11.9+0.5 pts
6Bannock County10.7+0.7 pts
7Bonner County10+0.9 pts
8Bonneville County10-0.3 pts
9Valley County10-2.9 pts
10Kootenai County9.8+0.8 pts
11Boise County9.6+0.1 pts
12Twin Falls County9.1-0.4 pts
13Camas County9+0.5 pts
14Lemhi County8.70 pts
15Nez Perce County8.7+0.5 pts
16Oneida County8.4+2.6 pts
17Adams County7.8-1 pts
17Jefferson County7.8-0.9 pts
19Boundary County7.7+0.7 pts
20Minidoka County7.1+0.2 pts
21Cassia County7+1 pts
22Benewah County6.7+0.9 pts
23Canyon County6.7+0.2 pts
24Washington County6.4+0.5 pts
25Bear Lake County6.4-0.2 pts
26Franklin County6.3+0.8 pts
27Clearwater County6.2+0.4 pts
28Gooding County6+1.4 pts
29Bingham County5.9+0.2 pts
30Payette County5.9+0.3 pts
31Caribou County5.8+0.2 pts
32Idaho County5.8+0.8 pts
33Lewis County5.5-0.5 pts
34Elmore County5.4-0 pts
35Gem County5+0.8 pts
36Fremont County4.9+0.3 pts
37Lincoln County4.7-0.2 pts
38Power County4.6-0.3 pts
39Owyhee County4.4+1 pts
40Jerome County4.3-0 pts
41Shoshone County4.1-0.6 pts
42Custer County3.9-1.4 pts
43Butte County3.8-0.1 pts
44Clark County3.6-0.8 pts

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/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 master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs (Counties in Idaho by graduate or professional degree, 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 master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs, Counties in Idaho by graduate or professional degree, 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/graduate-or-professional-degree/idaho-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 master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs. Counties in Idaho by graduate or professional degree, 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/graduate-or-professional-degree/idaho-counties?period=2023.

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 Idaho by graduate or professional degree, 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/graduate-or-professional-degree/idaho-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_idaho_by_2023,
  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 Idaho by graduate or professional degree, 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/graduate-or-professional-degree/idaho-counties?period=2023. 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/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 master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs: Counties in Idaho by graduate or professional degree, 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/graduate-or-professional-degree/idaho-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/graduate-or-professional-degree/idaho-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 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/2023/table-based-SF/data/5YRData/acsdt5y2023-b15003.dat. Retrieved 2026-10-12.
ER  -
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Rank Counties in Idaho by graduate or professional degree, population 25 and over using official data, and cite the source.
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Questions

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

Latah County, with 17.8% in 2023, according to the U.S. Census Bureau.

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

Clark County, with 3.6% 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 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 Idaho: more rankings