Seattle, Washington, is located on the eastern shore of Puget Sound, approximately 90 miles from the Pacific coastline and 113 miles from the U.S.-Canadian border. Puget Sound has 500 square miles of water, 1,400 miles of shoreline, and about 300 islands. Seattle has more than 147 miles of freshwater shoreline and 53 miles of saltwater shoreline.
Washington is in the Pacific Northwest region of the U.S. It shares borders with the Pacific Ocean, Oregon, Idaho, and the Canadian province of British Columbia. Its state capital is Olympia, and its largest city, Seattle. At 71,362 square miles, it is the 18th-largest state, and 7.7 million residents make it the 13th-most populous state.