Highest Slovak population share, Washington counties

Washington counties ranked by the share of all residents who are Slovak ancestry (2024 American Community Survey). A concentration measure: Slovak residents as a percentage of total population. This list covers the 31 counties in Washington that qualify, ranked against each other statewide. The median across all 31 is 0.1%. Biggest climber in the top 100 since 2020: Okanogan County, WA, up 23 places to #7.