Data / Rankings / Uninsured rate, ages 19 to 34 (US, ACS) / Counties in Maryland

Counties in Maryland by uninsured rate, ages 19 to 34 (US, ACS), 2024

Prince George's County had the highest uninsured rate, ages 19 to 34 (US, ACS) of 24 counties in 2024, at 17.2%. St. Mary's County had the lowest, at 4.7%. The median was 8.7% and the figure for Maryland was 10.3%. Source: the U.S. Census Bureau.

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Highest17.2Prince George's County
Lowest4.7St. Mary's County
Median8.724 counties
Maryland10.3History

Map of counties, 2024

Allegany County: 7.2 %Anne Arundel County: 9.2 %Baltimore County: 8.1 %Calvert County: 5.9 %Caroline County: 14.1 %Carroll County: 5 %Cecil County: 5.8 %Charles County: 8.8 %Dorchester County: 11.2 %Frederick County: 7.5 %Garrett County: 11.6 %Harford County: 5.1 %Howard County: 7.4 %Kent County: 6.7 %Montgomery County: 12.8 %Prince George's County: 17.2 %Queen Anne's County: 12.8 %St. Mary's County: 4.7 %Somerset County: 9.1 %Talbot County: 8.6 %Washington County: 10.4 %Wicomico County: 10.4 %Worcester County: 11 %Baltimore city: 8.3 %
  • Under 6.3
  • 6.3 to 8.1
  • 8.1 to 9.1
  • 9.1 to 11
  • 11 and over
%, 2024. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

Prince George's County: 17.2 %Prince George's County17.2Caroline County: 14.1 %Caroline County14.1Montgomery County: 12.8 %Montgomery County12.8Queen Anne's County: 12.8 %Queen Anne's County12.8Garrett County: 11.6 %Garrett County11.6Dorchester County: 11.2 %Dorchester County11.2Worcester County: 11 %Worcester County11Washington County: 10.4 %Washington County10.4Wicomico County: 10.4 %Wicomico County10.4Anne Arundel County: 9.2 %Anne Arundel County9.2Somerset County: 9.1 %Somerset County9.1Charles County: 8.8 %Charles County8.8Talbot County: 8.6 %Talbot County8.6Baltimore city: 8.3 %Baltimore city8.3Baltimore County: 8.1 %Baltimore County8.1Frederick County: 7.5 %Frederick County7.5Howard County: 7.4 %Howard County7.4Allegany County: 7.2 %Allegany County7.2Kent County: 6.7 %Kent County6.7Calvert County: 5.9 %Calvert County5.9Cecil County: 5.8 %Cecil County5.8Harford County: 5.1 %Harford County5.1Carroll County: 5 %Carroll County5St. Mary's County: 4.7 %St. Mary's County4.7Prince George's County: 17.2 %Prince George's County17.2Caroline County: 14.1 %Caroline County14.1Montgomery County: 12.8 %Montgomery County12.8Queen Anne's County: 12.8 %Queen Anne's County12.8Garrett County: 11.6 %Garrett County11.6Dorchester County: 11.2 %Dorchester County11.2Worcester County: 11 %Worcester County11Washington County: 10.4 %Washington County10.4Wicomico County: 10.4 %Wicomico County10.4Anne Arundel County: 9.2 %Anne Arundel County9.2Somerset County: 9.1 %Somerset County9.1Charles County: 8.8 %Charles County8.8Talbot County: 8.6 %Talbot County8.6Baltimore city: 8.3 %Baltimore city8.3Baltimore County: 8.1 %Baltimore County8.1Frederick County: 7.5 %Frederick County7.5Howard County: 7.4 %Howard County7.4Allegany County: 7.2 %Allegany County7.2Kent County: 6.7 %Kent County6.7Calvert County: 5.9 %Calvert County5.9Cecil County: 5.8 %Cecil County5.8Harford County: 5.1 %Harford County5.1Carroll County: 5 %Carroll County5St. Mary's County: 4.7 %St. Mary's County4.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Prince George's County17.2-0 pts
2Caroline County14.1-0.1 pts
3Montgomery County12.8+0.3 pts
3Queen Anne's County12.8+0.5 pts
5Garrett County11.6-0.8 pts
6Dorchester County11.2+2.3 pts
7Worcester County11-0 pts
8Washington County10.4+0.3 pts
9Wicomico County10.4-0.2 pts
10Anne Arundel County9.2-0.1 pts
11Somerset County9.1+2.8 pts
12Charles County8.8+0.8 pts
13Talbot County8.6-1.2 pts
14Baltimore city8.3+0.2 pts
15Baltimore County8.1-0.4 pts
16Frederick County7.5-0 pts
17Howard County7.4+0.3 pts
18Allegany County7.2-0.6 pts
19Kent County6.7+0.3 pts
20Calvert County5.9-1.2 pts
21Cecil County5.8-0.8 pts
22Harford County5.1-0.3 pts
23Carroll County5+0.2 pts
24St. Mary's County4.7-0.4 pts

Other periods

About this ranking

People aged 19 to 34 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 19 to 34. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Coverage is what people reported at the interview, so the five-year figure averages five years of answers. People whose only coverage is the Indian Health Service count as uninsured. Active-duty military and people living in institutions are outside the universe. For single-year model-based county figures under 65, see uninsured_rate_under_65, uninsured_rate_18_64 and uninsured_rate_under_19 (SAHIE), a different source.

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 B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.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 B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs (Counties in Maryland by uninsured rate, ages 19 to 34 (US, ACS), 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs, Counties in Maryland by uninsured rate, ages 19 to 34 (US, ACS), 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/maryland-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. Counties in Maryland by uninsured rate, ages 19 to 34 (US, ACS), 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/maryland-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs, Counties in Maryland by uninsured rate, ages 19 to 34 (US, ACS), 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-19-34/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 B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs: Counties in Maryland by uninsured rate, ages 19 to 34 (US, ACS), 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/maryland-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs: Counties in Maryland by uninsured rate, ages 19 to 34 (US, ACS), 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-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-ages-19-34/maryland-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/maryland-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, ages 19 to 34 (US, ACS)?

Prince George's County, with 17.2% in 2024, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 19 to 34 (US, ACS)?

St. Mary's County, with 4.7% 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 B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, ages 19 to 34 (US, ACS): other rankings

Counties in Maryland: more rankings