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

Counties in Maryland by uninsured rate, 65 and over (US, ACS), 2024

Prince George's County had the highest uninsured rate, 65 and over (US, ACS) of 24 counties in 2024, at 2.1%. Calvert County had the lowest, at 0.1%. The median was 0.6% and the figure for Maryland was 1.1%. Source: the U.S. Census Bureau.

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Highest2.1Prince George's County
Lowest0.1Calvert County
Median0.624 counties
Maryland1.1History

Map of counties, 2024

Allegany County: 0.1 %Anne Arundel County: 0.8 %Baltimore County: 0.9 %Calvert County: 0.1 %Caroline County: 1 %Carroll County: 0.2 %Cecil County: 0.4 %Charles County: 0.3 %Dorchester County: 0.6 %Frederick County: 0.6 %Garrett County: 1.1 %Harford County: 0.6 %Howard County: 1.1 %Kent County: 0.2 %Montgomery County: 1.7 %Prince George's County: 2.1 %Queen Anne's County: 0.3 %St. Mary's County: 0.2 %Somerset County: 0.7 %Talbot County: 0.3 %Washington County: 1.1 %Wicomico County: 0.3 %Worcester County: 0.5 %Baltimore city: 0.6 %
  • Under 0.2
  • 0.2 to 0.4
  • 0.4 to 0.6
  • 0.6 to 1
  • 1 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: 2.1 %Prince George's County2.1Montgomery County: 1.7 %Montgomery County1.7Washington County: 1.1 %Washington County1.1Garrett County: 1.1 %Garrett County1.1Howard County: 1.1 %Howard County1.1Caroline County: 1 %Caroline County1Baltimore County: 0.9 %Baltimore County0.9Anne Arundel County: 0.8 %Anne Arundel County0.8Somerset County: 0.7 %Somerset County0.7Frederick County: 0.6 %Frederick County0.6Harford County: 0.6 %Harford County0.6Baltimore city: 0.6 %Baltimore city0.6Dorchester County: 0.6 %Dorchester County0.6Worcester County: 0.5 %Worcester County0.5Cecil County: 0.4 %Cecil County0.4Queen Anne's County: 0.3 %Queen Anne's County0.3Wicomico County: 0.3 %Wicomico County0.3Talbot County: 0.3 %Talbot County0.3Charles County: 0.3 %Charles County0.3Carroll County: 0.2 %Carroll County0.2Kent County: 0.2 %Kent County0.2St. Mary's County: 0.2 %St. Mary's County0.2Allegany County: 0.1 %Allegany County0.1Calvert County: 0.1 %Calvert County0.1Prince George's County: 2.1 %Prince George's County2.1Montgomery County: 1.7 %Montgomery County1.7Washington County: 1.1 %Washington County1.1Garrett County: 1.1 %Garrett County1.1Howard County: 1.1 %Howard County1.1Caroline County: 1 %Caroline County1Baltimore County: 0.9 %Baltimore County0.9Anne Arundel County: 0.8 %Anne Arundel County0.8Somerset County: 0.7 %Somerset County0.7Frederick County: 0.6 %Frederick County0.6Harford County: 0.6 %Harford County0.6Baltimore city: 0.6 %Baltimore city0.6Dorchester County: 0.6 %Dorchester County0.6Worcester County: 0.5 %Worcester County0.5Cecil County: 0.4 %Cecil County0.4Queen Anne's County: 0.3 %Queen Anne's County0.3Wicomico County: 0.3 %Wicomico County0.3Talbot County: 0.3 %Talbot County0.3Charles County: 0.3 %Charles County0.3Carroll County: 0.2 %Carroll County0.2Kent County: 0.2 %Kent County0.2St. Mary's County: 0.2 %St. Mary's County0.2Allegany County: 0.1 %Allegany County0.1Calvert County: 0.1 %Calvert County0.1
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Prince George's County2.1+0.2 pts
2Montgomery County1.7+0.1 pts
3Washington County1.1+0.2 pts
4Garrett County1.1+0.8 pts
5Howard County1.1+0.2 pts
6Caroline County1+0.8 pts
7Baltimore County0.90 pts
8Anne Arundel County0.8+0.1 pts
9Somerset County0.7-0.1 pts
10Frederick County0.6+0.3 pts
11Harford County0.6+0.1 pts
12Baltimore city0.6-0 pts
13Dorchester County0.6-0.5 pts
14Worcester County0.5+0.1 pts
15Cecil County0.4-0 pts
16Queen Anne's County0.3-0.1 pts
17Wicomico County0.3+0.2 pts
18Talbot County0.30 pts
19Charles County0.3-0.1 pts
20Carroll County0.20 pts
21Kent County0.20 pts
22St. Mary's County0.20 pts
23Allegany County0.1-0.2 pts
24Calvert County0.10 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/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 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), 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 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), 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-65-and-over/maryland-counties. 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), 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-65-and-over/maryland-counties.

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), 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-65-and-over/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 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), 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-65-and-over/maryland-counties. 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/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 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), 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-65-and-over/maryland-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-65-and-over/maryland-counties.
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/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, 65 and over (US, ACS)?

Prince George's County, with 2.1% in 2024, according to the U.S. Census Bureau.

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

Calvert County, with 0.1% 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 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