Monroe State Bank Address: 101 W Washington St, Monroe, IA 50170 Phone: (641) 259-2016 Banks Other Businesses: Great Southern Bank at 108 E Washington St, Monroe, IA 50170 Jersey Freeze Ice Cream South at 1010 S Monroe St, Monroe, IA 50170 Mustang Diner at 108 W Sherman St, Monroe, IA 50170 South Side Food & Spirits at 104 S Commerce St, Monroe, IA 50170