Net County-to-County Migration Flow (5-year estimate) for Butler County, PA was 361.00000 Persons in January of 2020, according to the United States Federal Reserve. Historically, Net County-to-County Migration Flow (5-year estimate) for Butler County, PA reached a record high of 2095.00000 in January of 2013 and a record low of 361.00000 in January of 2020. Trading Economics provides the current actual value, an historical data chart and related indicators for Net County-to-County Migration Flow (5-year estimate) for Butler County, PA - last updated from the United States Federal Reserve on May of 2024.