Resident Population in Greene County, IN was 31.19600 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Greene County, IN reached a record high of 33.23000 in January of 1998 and a record low of 26.89400 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Greene County, IN - last updated from the United States Federal Reserve on May of 2024.