Largest Jamaican population, California counties

California counties ranked by the number of residents who are Jamaican ancestry, 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 42 counties in California that qualify, ranked against each other statewide. The median across all 42 is 267. Biggest climber in the top 100 since 2020: Imperial County, CA, up 17 places to #19.