Largest Bulgarian population, Massachusetts counties

Massachusetts 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 14 counties in Massachusetts that qualify, ranked against each other statewide. The median across all 14 is 136. Biggest climber in the top 100 since 2020: Essex County, MA, up 5 places to #4.