Highest South American population share, Washington counties

Washington counties ranked by the share of all residents who are South American origin (2024 American Community Survey). A concentration measure: South American residents as a percentage of total population. This list covers the 37 counties in Washington that qualify, ranked against each other statewide. The median across all 37 is 0.3%. Biggest climber in the top 100 since 2020: Lewis County, WA, up 23 places to #8.