Data / Rankings / Uninsured rate, under 19 (US, ACS) / Counties in Maryland

Counties in Maryland by uninsured rate, under 19 (US, ACS)

Kent County had the highest uninsured rate, under 19 (US, ACS) of 24 counties in 2023, at 10.5%. Carroll County had the lowest, at 1.7%. The median was 3.6% and the figure for Maryland was 4.2%. Source: the U.S. Census Bureau.

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Highest10.5Kent County
Lowest1.7Carroll County
Median3.624 counties
Maryland4.2History

Map of counties, 2023

Allegany County: 2.2 %Anne Arundel County: 2.3 %Baltimore County: 4.9 %Calvert County: 1.9 %Caroline County: 4.7 %Carroll County: 1.7 %Cecil County: 2.9 %Charles County: 4 %Dorchester County: 3.2 %Frederick County: 2.5 %Garrett County: 3.5 %Harford County: 4 %Howard County: 2.9 %Kent County: 10.5 %Montgomery County: 3.4 %Prince George's County: 8 %Queen Anne's County: 4.8 %St. Mary's County: 3.7 %Somerset County: 1.8 %Talbot County: 3.4 %Washington County: 4.3 %Wicomico County: 4.4 %Worcester County: 4.6 %Baltimore city: 3.8 %
  • Under 2.4
  • 2.4 to 3.4
  • 3.4 to 4
  • 4 to 4.6
  • 4.6 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Kent County: 10.5 %Kent County10.5Prince George's County: 8 %Prince George's County8Baltimore County: 4.9 %Baltimore County4.9Queen Anne's County: 4.8 %Queen Anne's County4.8Caroline County: 4.7 %Caroline County4.7Worcester County: 4.6 %Worcester County4.6Wicomico County: 4.4 %Wicomico County4.4Washington County: 4.3 %Washington County4.3Harford County: 4 %Harford County4Charles County: 4 %Charles County4Baltimore city: 3.8 %Baltimore city3.8St. Mary's County: 3.7 %St. Mary's County3.7Garrett County: 3.5 %Garrett County3.5Montgomery County: 3.4 %Montgomery County3.4Talbot County: 3.4 %Talbot County3.4Dorchester County: 3.2 %Dorchester County3.2Cecil County: 2.9 %Cecil County2.9Howard County: 2.9 %Howard County2.9Frederick County: 2.5 %Frederick County2.5Anne Arundel County: 2.3 %Anne Arundel County2.3Allegany County: 2.2 %Allegany County2.2Calvert County: 1.9 %Calvert County1.9Somerset County: 1.8 %Somerset County1.8Carroll County: 1.7 %Carroll County1.7Kent County: 10.5 %Kent County10.5Prince George's County: 8 %Prince George's County8Baltimore County: 4.9 %Baltimore County4.9Queen Anne's County: 4.8 %Queen Anne's County4.8Caroline County: 4.7 %Caroline County4.7Worcester County: 4.6 %Worcester County4.6Wicomico County: 4.4 %Wicomico County4.4Washington County: 4.3 %Washington County4.3Harford County: 4 %Harford County4Charles County: 4 %Charles County4Baltimore city: 3.8 %Baltimore city3.8St. Mary's County: 3.7 %St. Mary's County3.7Garrett County: 3.5 %Garrett County3.5Montgomery County: 3.4 %Montgomery County3.4Talbot County: 3.4 %Talbot County3.4Dorchester County: 3.2 %Dorchester County3.2Cecil County: 2.9 %Cecil County2.9Howard County: 2.9 %Howard County2.9Frederick County: 2.5 %Frederick County2.5Anne Arundel County: 2.3 %Anne Arundel County2.3Allegany County: 2.2 %Allegany County2.2Calvert County: 1.9 %Calvert County1.9Somerset County: 1.8 %Somerset County1.8Carroll County: 1.7 %Carroll County1.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Kent County10.5+3.6 pts
2Prince George's County8+1.6 pts
3Baltimore County4.9+0.1 pts
4Queen Anne's County4.8+2.6 pts
5Caroline County4.7+0.3 pts
6Worcester County4.6+0.1 pts
7Wicomico County4.4+0.3 pts
8Washington County4.3+0.5 pts
9Harford County4+0.4 pts
10Charles County4+0.3 pts
11Baltimore city3.8+0.5 pts
12St. Mary's County3.7+0.4 pts
13Garrett County3.5-0.8 pts
14Montgomery County3.4+0.5 pts
15Talbot County3.4-0.1 pts
16Dorchester County3.2-2.1 pts
17Cecil County2.9-0.4 pts
18Howard County2.90 pts
19Frederick County2.50 pts
20Anne Arundel County2.3-0.4 pts
21Allegany County2.2-0.5 pts
22Calvert County1.9+0.3 pts
23Somerset County1.8-0.3 pts
24Carroll County1.7+0.2 pts

Other periods

About this ranking

People under 19 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population under 19. 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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs (Counties in Maryland by uninsured rate, under 19 (US, ACS), 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs, Counties in Maryland by uninsured rate, under 19 (US, ACS), 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19-acs/maryland-counties?period=2023. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. Counties in Maryland by uninsured rate, under 19 (US, ACS), 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19-acs/maryland-counties?period=2023.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs, Counties in Maryland by uninsured rate, under 19 (US, ACS), 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19-acs/maryland-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_maryland_by_2023,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs: Counties in Maryland by uninsured rate, under 19 (US, ACS), 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19-acs/maryland-counties?period=2023. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs: Counties in Maryland by uninsured rate, under 19 (US, ACS), 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-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-under-19-acs/maryland-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19-acs/maryland-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, under 19 (US, ACS)?

Kent County, with 10.5% in 2023, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 19 (US, ACS)?

Carroll County, with 1.7% 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 B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, under 19 (US, ACS): other rankings

Counties in Maryland: more rankings