Unionport is a small unincorporated community in Jefferson County, Ohio.[1] It is best known as the birthplace of millionaire, Helen Brach, who was the center of media attention in 1977, when she disappeared.[2] Unionport is located on the banks of the Cross Creek, a large tributary of the Ohio River approximately 20 miles east.
Unionport was platted in 1852.[3] A post office called Unionport was established in 1855, and remained in operation until 2002. [4]