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

Counties in Maryland by graduate or professional degree, population 25 and over, 2024

Howard County had the highest graduate or professional degree, population 25 and over of 24 counties in 2024, at 34.1%. Caroline County had the lowest, at 6.7%. The median was 16% and the figure for Maryland was 20.8%. Source: the U.S. Census Bureau.

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Highest34.1Howard County
Lowest6.7Caroline County
Median1624 counties
Maryland20.8History

Map of counties, 2024

Allegany County: 9.3 %Anne Arundel County: 20.6 %Baltimore County: 19.1 %Calvert County: 16.6 %Caroline County: 6.7 %Carroll County: 15.7 %Cecil County: 11.2 %Charles County: 14.9 %Dorchester County: 7.4 %Frederick County: 20.5 %Garrett County: 12.4 %Harford County: 17 %Howard County: 34.1 %Kent County: 18.1 %Montgomery County: 33.4 %Prince George's County: 16.4 %Queen Anne's County: 15.1 %St. Mary's County: 16.2 %Somerset County: 7.6 %Talbot County: 17.7 %Washington County: 9.9 %Wicomico County: 11.7 %Worcester County: 13.9 %Baltimore city: 18.1 %
  • Under 11
  • 11 to 15
  • 15 to 17
  • 17 to 19
  • 19 and over
%, 2024. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

Howard County: 34.1 %Howard County34.1Montgomery County: 33.4 %Montgomery County33.4Anne Arundel County: 20.6 %Anne Arundel County20.6Frederick County: 20.5 %Frederick County20.5Baltimore County: 19.1 %Baltimore County19.1Kent County: 18.1 %Kent County18.1Baltimore city: 18.1 %Baltimore city18.1Talbot County: 17.7 %Talbot County17.7Harford County: 17 %Harford County17Calvert County: 16.6 %Calvert County16.6Prince George's County: 16.4 %Prince George's County16.4St. Mary's County: 16.2 %St. Mary's County16.2Carroll County: 15.7 %Carroll County15.7Queen Anne's County: 15.1 %Queen Anne's County15.1Charles County: 14.9 %Charles County14.9Worcester County: 13.9 %Worcester County13.9Garrett County: 12.4 %Garrett County12.4Wicomico County: 11.7 %Wicomico County11.7Cecil County: 11.2 %Cecil County11.2Washington County: 9.9 %Washington County9.9Allegany County: 9.3 %Allegany County9.3Somerset County: 7.6 %Somerset County7.6Dorchester County: 7.4 %Dorchester County7.4Caroline County: 6.7 %Caroline County6.7Howard County: 34.1 %Howard County34.1Montgomery County: 33.4 %Montgomery County33.4Anne Arundel County: 20.6 %Anne Arundel County20.6Frederick County: 20.5 %Frederick County20.5Baltimore County: 19.1 %Baltimore County19.1Kent County: 18.1 %Kent County18.1Baltimore city: 18.1 %Baltimore city18.1Talbot County: 17.7 %Talbot County17.7Harford County: 17 %Harford County17Calvert County: 16.6 %Calvert County16.6Prince George's County: 16.4 %Prince George's County16.4St. Mary's County: 16.2 %St. Mary's County16.2Carroll County: 15.7 %Carroll County15.7Queen Anne's County: 15.1 %Queen Anne's County15.1Charles County: 14.9 %Charles County14.9Worcester County: 13.9 %Worcester County13.9Garrett County: 12.4 %Garrett County12.4Wicomico County: 11.7 %Wicomico County11.7Cecil County: 11.2 %Cecil County11.2Washington County: 9.9 %Washington County9.9Allegany County: 9.3 %Allegany County9.3Somerset County: 7.6 %Somerset County7.6Dorchester County: 7.4 %Dorchester County7.4Caroline County: 6.7 %Caroline County6.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Howard County34.1+0.4 pts
2Montgomery County33.4+0.3 pts
3Anne Arundel County20.6+0.5 pts
4Frederick County20.5+0.4 pts
5Baltimore County19.1+0.8 pts
6Kent County18.1+0.1 pts
7Baltimore city18.1+0.7 pts
8Talbot County17.7-0.4 pts
9Harford County17+0.1 pts
10Calvert County16.6+0.8 pts
11Prince George's County16.4+0.6 pts
12St. Mary's County16.2+1 pts
13Carroll County15.70 pts
14Queen Anne's County15.1+0.3 pts
15Charles County14.9+1 pts
16Worcester County13.9+1.1 pts
17Garrett County12.4+1.1 pts
18Wicomico County11.7+0.2 pts
19Cecil County11.2+0.2 pts
20Washington County9.9+0.1 pts
21Allegany County9.3-0 pts
22Somerset County7.6+1.7 pts
23Dorchester County7.4-0.7 pts
24Caroline County6.7-0.7 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/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 master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs (Counties in Maryland by graduate or professional degree, 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 master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs, Counties in Maryland by graduate or professional degree, 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/graduate-or-professional-degree/maryland-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 master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs. Counties in Maryland by graduate or professional degree, 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/graduate-or-professional-degree/maryland-counties.

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 Maryland by graduate or professional degree, 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/graduate-or-professional-degree/maryland-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_maryland_by_2024,
  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 Maryland by graduate or professional degree, 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/graduate-or-professional-degree/maryland-counties. 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/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 master's, professional school or doctorate degree as a percentage of the population 25 years and over, calculated with stored inputs: Counties in Maryland by graduate or professional degree, 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/graduate-or-professional-degree/maryland-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/graduate-or-professional-degree/maryland-counties.
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/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. Retrieved 2026-10-12.
ER  -
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Questions

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

Howard County, with 34.1% in 2024, according to the U.S. Census Bureau.

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

Caroline County, with 6.7% 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 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 Maryland: more rankings