RANKING · 2020 CENSUS · 24 SHOWN OF 24

Largest Puerto Rican population, Maryland counties · 2020

Maryland counties ranked by the number of residents who are Puerto Rican origin, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 24 counties in Maryland that qualify, ranked against each other statewide.

Puerto Rican Americans: full group profile →

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SAME RANKING BYCities States Metros

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

YEAR2010 2020 2024

RANKPLACESTATEPOPPUERTO RICAN POPULATIONVS 2010

01Montgomery County, MDMD1,074,58211,679+67%

02Baltimore County, MDMD847,6507,553+58%

03Anne Arundel County, MDMD603,3807,291+42%

04Prince George's County, MDMD970,3746,909+12%

05Baltimore, MDMD569,9974,647+67%

06Howard County, MDMD339,1833,894+95%

07Harford County, MDMD266,4463,686+85%

08Frederick County, MDMD302,8833,215+44%

09Charles County, MDMD176,5932,244+16%

10Washington County, MDMD157,7311,789+47%

11Cecil County, MDMD107,1311,759+22%

12Carroll County, MDMD176,677993+24%

13St. Mary's County, MDMD116,692888−1%

14Wicomico County, MDMD106,899708−32%

15Calvert County, MDMD94,484687+16%

16Allegany County, MDMD66,848311−2%

17Worcester County, MDMD54,459272+1843%

18Dorchester County, MDMD33,628270−29%

19Talbot County, MDMD38,238259−24%

20Queen Anne's County, MDMD54,448237+10%

21Kent County, MDMD19,565150−38%

22Caroline County, MDMD34,116142+8%

23Somerset County, MDMD24,973118−44%

24Garrett County, MDMD28,37037+0%

SHOWING 1–24 OF 24

Download CSV (full list, 24 rows)

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