RANKING · 2010 CENSUS · 24 SHOWN OF 24

Highest Puerto Rican population share, Maryland counties · 2010

Maryland counties ranked by the share of all residents who are Puerto Rican origin (2010 American Community Survey). A concentration measure: Puerto Rican residents as a percentage of total population. This list covers the 24 counties in Maryland that qualify, ranked against each other statewide. The median across all 24 is 0.8%.

Puerto Rican Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest Mexican population Highest Mexican population share Largest Puerto Rican population Largest Cuban population Highest Cuban population share Largest Dominican population

YEAR2010 2020 2024

RANKPLACESTATEPOPPUERTO RICAN SHAREVS –

01Cecil County, MDMD107,1311.4%–

02Charles County, MDMD176,5931.3%–

03Kent County, MDMD19,5651.2%–

04Dorchester County, MDMD33,6281.2%–

05Wicomico County, MDMD106,8991.1%–

06Frederick County, MDMD302,8831.0%–

07Anne Arundel County, MDMD603,3801.0%–

08Talbot County, MDMD38,2380.9%–

09St. Mary's County, MDMD116,6920.9%–

10Washington County, MDMD157,7310.8%–

11Harford County, MDMD266,4460.8%–

12Somerset County, MDMD24,9730.8%–

13Montgomery County, MDMD1,074,5820.7%–

14Prince George's County, MDMD970,3740.7%–

15Howard County, MDMD339,1830.7%–

16Calvert County, MDMD94,4840.7%–

17Baltimore County, MDMD847,6500.6%–

18Carroll County, MDMD176,6770.5%–

19Queen Anne's County, MDMD54,4480.5%–

20Baltimore, MDMD569,9970.4%–

21Allegany County, MDMD66,8480.4%–

22Caroline County, MDMD34,1160.4%–

23Garrett County, MDMD28,3700.1%–

24Worcester County, MDMD54,4590.0%–

SHOWING 1–24 OF 24

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS