Data / Rankings / Uninsured rate, 65 and over (US, ACS) / Counties in Maryland

Counties in Maryland by uninsured rate, 65 and over (US, ACS)

Prince George's County had the highest uninsured rate, 65 and over (US, ACS) of 24 counties in 2023, at 1.8%. Wicomico County had the lowest, at 0.1%. The median was 0.4% and the figure for Maryland was 1%. Source: the U.S. Census Bureau.

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Highest1.8Prince George's County
Lowest0.1Wicomico County
Median0.424 counties
Maryland1History

Map of counties, 2023

Allegany County: 0.3 %Anne Arundel County: 0.7 %Baltimore County: 0.9 %Calvert County: 0.1 %Caroline County: 0.2 %Carroll County: 0.2 %Cecil County: 0.4 %Charles County: 0.4 %Dorchester County: 1.1 %Frederick County: 0.3 %Garrett County: 0.3 %Harford County: 0.5 %Howard County: 0.9 %Kent County: 0.2 %Montgomery County: 1.6 %Prince George's County: 1.8 %Queen Anne's County: 0.4 %St. Mary's County: 0.2 %Somerset County: 0.8 %Talbot County: 0.3 %Washington County: 0.9 %Wicomico County: 0.1 %Worcester County: 0.5 %Baltimore city: 0.6 %
  • Under 0.2
  • 0.2 to 0.3
  • 0.3 to 0.5
  • 0.5 to 0.9
  • 0.9 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Prince George's County: 1.8 %Prince George's County1.8Montgomery County: 1.6 %Montgomery County1.6Dorchester County: 1.1 %Dorchester County1.1Baltimore County: 0.9 %Baltimore County0.9Washington County: 0.9 %Washington County0.9Howard County: 0.9 %Howard County0.9Somerset County: 0.8 %Somerset County0.8Anne Arundel County: 0.7 %Anne Arundel County0.7Baltimore city: 0.6 %Baltimore city0.6Worcester County: 0.5 %Worcester County0.5Harford County: 0.5 %Harford County0.5Queen Anne's County: 0.4 %Queen Anne's County0.4Cecil County: 0.4 %Cecil County0.4Charles County: 0.4 %Charles County0.4Allegany County: 0.3 %Allegany County0.3Frederick County: 0.3 %Frederick County0.3Garrett County: 0.3 %Garrett County0.3Talbot County: 0.3 %Talbot County0.3Carroll County: 0.2 %Carroll County0.2Caroline County: 0.2 %Caroline County0.2Kent County: 0.2 %Kent County0.2St. Mary's County: 0.2 %St. Mary's County0.2Calvert County: 0.1 %Calvert County0.1Wicomico County: 0.1 %Wicomico County0.1Prince George's County: 1.8 %Prince George's County1.8Montgomery County: 1.6 %Montgomery County1.6Dorchester County: 1.1 %Dorchester County1.1Baltimore County: 0.9 %Baltimore County0.9Washington County: 0.9 %Washington County0.9Howard County: 0.9 %Howard County0.9Somerset County: 0.8 %Somerset County0.8Anne Arundel County: 0.7 %Anne Arundel County0.7Baltimore city: 0.6 %Baltimore city0.6Worcester County: 0.5 %Worcester County0.5Harford County: 0.5 %Harford County0.5Queen Anne's County: 0.4 %Queen Anne's County0.4Cecil County: 0.4 %Cecil County0.4Charles County: 0.4 %Charles County0.4Allegany County: 0.3 %Allegany County0.3Frederick County: 0.3 %Frederick County0.3Garrett County: 0.3 %Garrett County0.3Talbot County: 0.3 %Talbot County0.3Carroll County: 0.2 %Carroll County0.2Caroline County: 0.2 %Caroline County0.2Kent County: 0.2 %Kent County0.2St. Mary's County: 0.2 %St. Mary's County0.2Calvert County: 0.1 %Calvert County0.1Wicomico County: 0.1 %Wicomico County0.1
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Prince George's County1.8-0.1 pts
2Montgomery County1.6+0.1 pts
3Dorchester County1.1-0.1 pts
4Baltimore County0.9+0.2 pts
5Washington County0.9+0.1 pts
6Howard County0.90 pts
7Somerset County0.8+0.8 pts
8Anne Arundel County0.7-0.1 pts
9Baltimore city0.6-0.1 pts
10Worcester County0.5+0.4 pts
11Harford County0.5+0.1 pts
12Queen Anne's County0.4+0.1 pts
13Cecil County0.4-0 pts
14Charles County0.4-0.1 pts
15Allegany County0.3-0 pts
16Frederick County0.3-0.1 pts
17Garrett County0.3+0.2 pts
18Talbot County0.3-0 pts
19Carroll County0.20 pts
20Caroline County0.20 pts
21Kent County0.20 pts
21St. Mary's County0.2-0.4 pts
23Calvert County0.10 pts
24Wicomico County0.1-0 pts

Other periods

About this ranking

People aged 65 and over without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 65 and over. 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 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, 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 aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs (Counties in Maryland by uninsured rate, 65 and over (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 aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs, Counties in Maryland by uninsured rate, 65 and over (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-65-and-over/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 aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs. Counties in Maryland by uninsured rate, 65 and over (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-65-and-over/maryland-counties?period=2023.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs, Counties in Maryland by uninsured rate, 65 and over (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-65-and-over/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 aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs: Counties in Maryland by uninsured rate, 65 and over (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-65-and-over/maryland-counties?period=2023. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, 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 aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs: Counties in Maryland by uninsured rate, 65 and over (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-65-and-over/maryland-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-65-and-over/maryland-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, 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, 65 and over (US, ACS)?

Prince George's County, with 1.8% in 2023, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, 65 and over (US, ACS)?

Wicomico County, with 0.1% 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 aged 65 and over with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 65 and over, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, 65 and over (US, ACS): other rankings

Counties in Maryland: more rankings