RANKING · 2024 ACS · 24 SHOWN OF 24

Highest uninsured rate, Maryland counties

Maryland counties ranked by the share of residents without health insurance (2024 ACS). This list covers the 24 counties in Maryland that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR2020 2024

RANKPLACESTATEPOPUNINSUREDVS 2020

01Prince George's County, MDMD970,37411.4%+11%

02Caroline County, MDMD34,1167.3%+18%

03Montgomery County, MDMD1,074,5827.0%+3%

04Wicomico County, MDMD106,8996.7%+0%

05Washington County, MDMD157,7316.3%+21%

06Garrett County, MDMD28,3706.2%−3%

07Kent County, MDMD19,5656.1%+49%

08Baltimore, MDMD569,9975.9%−2%

09Queen Anne's County, MDMD54,4485.7%+33%

10Dorchester County, MDMD33,6285.5%+12%

11Baltimore County, MDMD847,6505.4%+2%

12Worcester County, MDMD54,4595.0%−7%

13Anne Arundel County, MDMD603,3804.7%+9%

14Frederick County, MDMD302,8834.7%+4%

15Charles County, MDMD176,5934.6%+10%

16Howard County, MDMD339,1834.2%+14%

17Talbot County, MDMD38,2383.9%−5%

18St. Mary's County, MDMD116,6923.9%−17%

19Allegany County, MDMD66,8483.8%−16%

20Cecil County, MDMD107,1313.6%−14%

21Harford County, MDMD266,4463.6%+9%

22Somerset County, MDMD24,9733.6%−31%

23Calvert County, MDMD94,4843.0%−9%

24Carroll County, MDMD176,6772.9%−9%

SHOWING 1–24 OF 24

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES