Allen County was organized on December 17, 1823, out of Delaware and Randolph counties and formed April 1,1824.

The county is named for Colonel John Allen, an attorney and Kentucky state senator who was killed in the War 1812.

Fort Wayne, founded at the Maumee River, St. Joseph River, and St. Marys River, was chosen as the county seat in May 1824.

Surrounding Counties

Surrounding Counties Map