Corydon was settled in 1810 and incorporated in 1829. On March 26, 1846 as a result of a settlement of a border dispute a small portion was ceded to Warren County. The result being two townships in adjacent counties with the same name. Both towns disappeared as a result of the building of the Kinzua Dam on the Alleghany River in 1964,

At one time Corydon boasted two hotels, the Dalrymple Hotel ,and the Griffin Hotel, There were eleven stores, a livery stable, several blacksmiths, a grist mill, and a handle factory. As of the census of 2000, there were 301 people, 122 households, and 85 families residing in the township.

In 1827 Philip Tome became the first settler. He was famous for being a hunter, as well as interpreter for Chief Cornplanter and Governor Blacksnake. He is the author of the book titled "Pioneer Life, or Thirty Years a Hunter." The book can be found in hard cover on several web sites including amazon.com.