Grinnell State Bank (member FDIC) is a locally owned, community bank with branches in Grinnell, Johnston, Marengo & Polk City. Grinnell State Bank is a full-service financial institution & its deposits are insured by the Federal Deposit Insurance Corporation. At Grinnell State Bank, we lend money for a diverse range of commercial and consumer purposes. We have an experienced loan staff and all lending decisions are made locally. We are always happy to answer your questions by walk-in, appointment, phone call, or email at info@GrinnellBank.com.