Banks in Grand Coulee, Washington, the US. Banks locations in Grand Coulee, Washington. Find the nearest banks locations, near you. All types of business services Accounting ATM Bank Courthouse Finance Funeral home Insurance Real estate Travel All banks in Grand Coulee ATM Coulee Dam Fcu ATM Finance Bank +1 800-627-3999 3 Midway Avenue, Grand Coulee, Washington 99133 Write a review Phone Directions