Largest Bulgarian population, Pennsylvania counties

Pennsylvania counties ranked by the number of residents who are Bulgarian 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 42 counties in Pennsylvania that qualify, ranked against each other statewide. The median across all 42 is 51. Biggest climber in the top 100 since 2020: Northumberland County, PA, up 24 places to #4.