Bank Of Maine Address: 18 Main St, Winthrop, ME 04364 Phone: (207) 377-3159 Banks, Savings & Loan Associations, Insurance Other Businesses: KeyBank at 107 Main St, Winthrop, ME 04364 Winthrop Area Federal Credit Union at 94 Highland Ave, Winthrop, ME 04364 Augusta West Lakeside Resort at 183 Holmes Brook Ln, Winthrop, ME 04364 Cobbossee Cottages at Turtle Run Rd E, Winthrop, ME 04364