Resident Population in Fayette County, IN was 23.36200 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Fayette County, IN reached a record high of 28.27200 in January of 1980 and a record low of 23.02600 in January of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Fayette County, IN - last updated from the United States Federal Reserve on May of 2024.