About Shoreline Bank Shoreline Bank is headquartered in North King County. Founded in the fall of 1999, the Bank was formed by the leadership and financial support of people in the Shoreline community and has expanded to serve customers and shareholders throughout the Puget Sound region. Our shareholders appreciate the unique opportunity to support a locally owned and operated bank committed to offering superior and convenient service. At Shoreline Bank we strive to support and be a part of the communities we serve. We continually support our local organizations and non-profits, so don't be surprised if a Shoreline Bank employee is part of your organization! Equal Housing Lender. Member FDIC.