RANKING · 2010 CENSUS · 14 SHOWN OF 14

Highest Costa Rican population share, Maryland counties · 2010

Maryland counties ranked by the share of all residents who are Costa Rican origin (2023 American Community Survey). A concentration measure: Costa Rican residents as a percentage of total population. This list covers the 14 counties in Maryland that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

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 2000

01St. Mary's County, MDMD116,6920.2%–

02Frederick County, MDMD302,8830.2%–

03Harford County, MDMD266,4460.1%–

04Montgomery County, MDMD1,074,5820.1%–

05Howard County, MDMD339,1830.1%–

06Charles County, MDMD176,5930.1%–

07Talbot County, MDMD38,2380.0%–

08Baltimore County, MDMD847,6500.0%–

09Calvert County, MDMD94,4840.0%–

10Baltimore, MDMD569,9970.0%–

11Washington County, MDMD157,7310.0%–

12Prince George's County, MDMD970,3740.0%–

13Anne Arundel County, MDMD603,3800.0%–

14Allegany County, MDMD66,8480.0%–

SHOWING 1–14 OF 14

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES