Harrison County is located in the far southern part of the U.S. state of Indiana along the Ohio River. The county was officially established in 1808. Its population was 39,654 as of the 2020 United States Census. Its county seat is Corydon, the former capital of Indiana. Harrison County is part of the Louisville-Jefferson County, KY-IN Metropolitan Statistical Area. The county has a diverse economy with no sector employing more than 13% of the local workforce.