Dewey State Bank Address: 129 S Center St, Saybrook, IL 61770 Phone: (309) 475-2002 Hours: Mon: 9am-5pm Tue: 9am-5pm Wed: 9am-5pm Thu: 9am-5pm Fri: 9am-5pm Banks, Mortgages Other Businesses: Agro Chem West Inc at 127 S Center St, Saybrook, IL 61770 Casey's Carry Out Pizza at 206 S Main St, Saybrook, IL 61770 Caseys Carry Out Pizza at 104 S Main St, Saybrook, IL 61770 Harvest Table Diner at 120 S Center St, Saybrook, IL 61770