Highest Costa Rican population share, Arizona counties

Arizona 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 10 counties in Arizona that qualify, ranked against each other statewide. The median across all 10 is 0.0%. Biggest climber in the top 100 since 2020: Cochise County, AZ, up 5 places to #1.