Keystone Savings Bank
330 Western Avenue, Marengo, IA 52301
Keystone Savings Bank is a commercial bank with state charter. It is Fed nonmember and is supervised by the FDIC.
Keystone Savings Bank began operations on 4/27/1935. Keystone Savings Bank recently reported it had 3 branch offices.
Web address listed with FDIC: http://www.keystonesavings.com