Corydon is a town in Harrison Township, Harrison County, Indiana, United States, founded in 1808, and is known as Indiana's First State Capital. Corydon was the second capital of the Indiana Territory from May 1, 1813 until December 11, 1816. After statehood, the town was the capital of Indiana until January 10, 1825 when it moved to Indianapolis. The town remains the county seat of Harrison County and had a population was 2,715 at the 2000 census.