Twin City Federal Online Banking TCF Bank or Twin City Federal Bank was founded in 1923 in Minnesota. It’s a national bank holding company that operates over 400 branches in Minnesota, Illinois, Michigan, Colorado, Wisconsin, Indiana, Arizona and South Dakota. • Website – www.tcfbank.com • Customer Service Telephone – 1 (612)-661-6500 • Routing Number – 291070001 • Swift Number – WFBIUS6S. Customer Service Telephone 1 (612)-661-6500 Online Banking Login How to Log In 1. Go to the bank webpage. 2.…