Largest Swiss population, Pennsylvania counties

Pennsylvania counties ranked by the number of residents who are Swiss 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 67 counties in Pennsylvania that qualify, ranked against each other statewide. The median across all 67 is 422. Biggest climber in the top 100 since 2020: Bradford County, PA, up 15 places to #39.