Flagstar Bank Address: 1372 S Centerville Rd, Sturgis, MI 49091 Phone: (269) 659-6230 Banks, Flagstar Bank Other Businesses: Sturgis Bank & Trust at 1001 S Centerville Rd, Sturgis, MI 49091 Key Bank at 711 S Centerville Rd, Sturgis, MI 49091 KeyBank at 713 S Centerville Rd, Sturgis, MI 49091 Sturgis Bank & Trust Co at 113 E Chicago Rd Ste 125, Sturgis, MI 49091