Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Mifflin County, PA was 43564.00000 Persons in January of 2022, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Mifflin County, PA reached a record high of 45248.00000 in January of 2011 and a record low of 43564.00000 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Mifflin County, PA - last updated from the United States Federal Reserve on May of 2024.