Largest foreign-born population, Idaho counties

Idaho counties with the most residents born outside the United States, as of the 2024 American Community Survey. Ranked by number of people, not share. This list covers the 44 counties in Idaho that qualify, ranked against each other statewide. The median across all 44 is 1,049. Biggest climber in the top 100 since 2020: Custer County, ID, up 11 places to #32.