Largest Costa Rican population, Massachusetts counties

Massachusetts counties ranked by the number of residents who are Costa Rican origin, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 13 counties in Massachusetts that qualify, ranked against each other statewide. The median across all 13 is 204. Biggest climber in the top 100 since 2020: Nantucket County, MA, up 5 places to #7.