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. The median across all 24 is 5.0%. Biggest climber in the top 100 since 2020: Kent County, MD, up 13 places to #7.

MarylandAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR2020 2024

RANKPLACESTATEPOPUNINSUREDVS 2020

01Prince George's County, MDMD970,37411.4%+1.1 pts

02▲3Caroline County, MDMD34,1167.3%+1.1 pts

03▼1Montgomery County, MDMD1,074,5827.0%+0.2 pts

04▼1Wicomico County, MDMD106,8996.7%0.0 pts

05▲4Washington County, MDMD157,7316.3%+1.1 pts

06▼2Garrett County, MDMD28,3706.2%−0.2 pts

07▲13Kent County, MDMD19,5656.1%+2.0 pts

08▼2Baltimore, MDMD569,9975.9%−0.1 pts

09▲6Queen Anne's County, MDMD54,4485.7%+1.4 pts

10▲1Dorchester County, MDMD33,6285.5%+0.6 pts

11▼3Baltimore County, MDMD847,6505.4%+0.1 pts

12▼5Worcester County, MDMD54,4595.0%−0.4 pts

13▲3Anne Arundel County, MDMD603,3804.7%+0.4 pts

14Frederick County, MDMD302,8834.7%+0.2 pts

15▲3Charles County, MDMD176,5934.6%+0.4 pts

16▲5Howard County, MDMD339,1834.2%+0.5 pts

17▲2Talbot County, MDMD38,2383.9%−0.2 pts

18▼6St. Mary's County, MDMD116,6923.9%−0.8 pts

19▼6Allegany County, MDMD66,8483.8%−0.7 pts

20▼3Cecil County, MDMD107,1313.6%−0.6 pts

21▲2Harford County, MDMD266,4463.6%+0.3 pts

22▼12Somerset County, MDMD24,9733.6%−1.6 pts

23▼1Calvert 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 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES