Counties in Washington by graduate or professional degree, population 25 and over
King County had the highest graduate or professional degree, population 25 and over of 39 counties in 2023, at 23.5%. Grant County had the lowest, at 5.3%. The median was 10.9% and the figure for Washington was 15.1%. Source: the U.S. Census Bureau.
Map of counties, 2023
- Under 6.8
- 6.8 to 7.8
- 7.8 to 11
- 11 to 12
- 12 to 14
- 14 and over
All counties, 2023
Full ranking
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
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 Washington 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 Washington 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/washington-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 Washington 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/washington-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 Washington 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/washington-counties?period=2023 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_washington_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 Washington 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/washington-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 Washington 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/washington-counties?period=2023
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/graduate-or-professional-degree/washington-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 -
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 Washington 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":"Washington","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=graduate_degree_share&level=province&within=Washington&limit=10Questions
Which county has the highest graduate or professional degree, population 25 and over?
King County, with 23.5% in 2023, according to the U.S. Census Bureau.
Which county has the lowest graduate or professional degree, population 25 and over?
Grant County, with 5.3% 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 Illinois
- Counties in South Carolina
- Counties in Arizona
- US states
- Cities in Indiana
- Cities in Connecticut
Counties in Washington: more rankings
- Population speaking Spanish at home
- Net domestic migration, July to June
- Residents who moved from another county in the past year
- Black or African American population share
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- Median gross rent (monthly)
- Fair Market Rent, one bedroom (HUD, monthly)
- Uninsured rate, ages 35 to 64 (US, ACS)