RANKING · 2024 ACS · 16 SHOWN OF 16

Highest Costa Rican population share, Maryland counties

Maryland counties ranked by the share of all residents who are Costa Rican origin (2024 American Community Survey). A concentration measure: Costa Rican residents as a percentage of total population. This list covers the 16 counties in Maryland that qualify, ranked against each other statewide. The median across all 16 is 0.1%. Biggest climber in the top 100 since 2020: Baltimore County, MD, up 9 places to #6.

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

YEAR2010 2020 2024

Highest Costa Rican population share by state

RANKPLACESTATEPOPCOSTA RICAN SHAREVS 2010

01Talbot County, MDMD38,2380.5%+0.5 pts

02▲1Frederick County, MDMD302,8830.1%−0.1 pts

03Calvert County, MDMD94,4840.1%+0.1 pts

04▲3Howard County, MDMD339,1830.1%0.0 pts

05▼1Montgomery County, MDMD1,074,5820.1%0.0 pts

06▲9Baltimore County, MDMD847,6500.1%+0.1 pts

07▼2Wicomico County, MDMD106,8990.1%–

08▲8St. Mary's County, MDMD116,6920.1%−0.1 pts

09▲3Baltimore, MDMD569,9970.1%0.0 pts

10Prince George's County, MDMD970,3740.0%0.0 pts

11▲7Cecil County, MDMD107,1310.0%–

12▲8Worcester County, MDMD54,4590.0%–

13▼4Anne Arundel County, MDMD603,3800.0%0.0 pts

14▲5Harford County, MDMD266,4460.0%−0.1 pts

15▲2Carroll County, MDMD176,6770.0%–

16▼3Washington County, MDMD157,7310.0%0.0 pts

SHOWING 1–16 OF 16

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES