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.

MarylandAll states All rankings

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%+1.1 pts

02Caroline County, MDMD34,1167.3%+1.1 pts

03Montgomery County, MDMD1,074,5827.0%+0.2 pts

04Wicomico County, MDMD106,8996.7%+0.0 pts

05Washington County, MDMD157,7316.3%+1.1 pts

06Garrett County, MDMD28,3706.2%−0.2 pts

07Kent County, MDMD19,5656.1%+2.0 pts

08Baltimore, MDMD569,9975.9%−0.1 pts

09Queen Anne's County, MDMD54,4485.7%+1.4 pts

10Dorchester County, MDMD33,6285.5%+0.6 pts

11Baltimore County, MDMD847,6505.4%+0.1 pts

12Worcester County, MDMD54,4595.0%−0.4 pts

13Anne Arundel County, MDMD603,3804.7%+0.4 pts

14Frederick County, MDMD302,8834.7%+0.2 pts

15Charles County, MDMD176,5934.6%+0.4 pts

16Howard County, MDMD339,1834.2%+0.5 pts

17Talbot County, MDMD38,2383.9%−0.2 pts

18St. Mary's County, MDMD116,6923.9%−0.8 pts

19Allegany County, MDMD66,8483.8%−0.7 pts

20Cecil County, MDMD107,1313.6%−0.6 pts

21Harford County, MDMD266,4463.6%+0.3 pts

22Somerset County, MDMD24,9733.6%−1.6 pts

23Calvert County, MDMD94,4843.0%−0.3 pts

24Carroll County, MDMD176,6772.9%−0.3 pts

SHOWING 1–24 OF 24

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES