Resident Population in Blackford County, IN was 11.89300 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Blackford County, IN reached a record high of 16.20000 in January of 1973 and a record low of 11.78700 in January of 2019. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Blackford County, IN - last updated from the United States Federal Reserve on May of 2024.