RANKING · 2020 CENSUS · 24 SHOWN OF 24

Highest uninsured rate, Maryland counties · 2020

Maryland counties ranked by the share of residents without health insurance (2020 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 –

01Prince George's County, MDMD970,37410.3%–

02Montgomery County, MDMD1,074,5826.8%–

03Wicomico County, MDMD106,8996.7%–

04Garrett County, MDMD28,3706.4%–

05Caroline County, MDMD34,1166.2%–

06Baltimore, MDMD569,9976.0%–

07Worcester County, MDMD54,4595.4%–

08Baltimore County, MDMD847,6505.3%–

09Washington County, MDMD157,7315.2%–

10Somerset County, MDMD24,9735.2%–

11Dorchester County, MDMD33,6284.9%–

12St. Mary's County, MDMD116,6924.7%–

13Allegany County, MDMD66,8484.5%–

14Frederick County, MDMD302,8834.5%–

15Queen Anne's County, MDMD54,4484.3%–

16Anne Arundel County, MDMD603,3804.3%–

17Cecil County, MDMD107,1314.2%–

18Charles County, MDMD176,5934.2%–

19Talbot County, MDMD38,2384.1%–

20Kent County, MDMD19,5654.1%–

21Howard County, MDMD339,1833.7%–

22Calvert County, MDMD94,4843.3%–

23Harford County, MDMD266,4463.3%–

24Carroll County, MDMD176,6773.2%–

SHOWING 1–24 OF 24

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS