Puget Sound only Puget Sound proper but also for waters to the north, such as Bellingham Bay and the San Juan Islands region. The term "Puget Sound" is used not just for the body of water but also the Puget Sound region centered on the sound. Major cities on the sound include Seattle, Tacoma, Olympia, and Everett, Washington. Puget Sound is also the third largest estuary in the United States, after Chesapeake Bay in Maryland and Virginia, and San Francisco Bay in northern California. In 1792 George Vancouver gave the name "Puget's Sound" to the waters south of the Tacoma Narrows, in
Port Ludlow, Washington west side of Puget Sound. Based on per capita income, Port Ludlow ranks 16th of 522 ranked areas in the state of Washington, and the highest rank achieved in Jefferson County. Port Ludlow's location and marina facilities make it a convenient and popular port for leisure craft sailing between Puget Sound and the San Juan Islands. The United States Exploring Expedition, under Charles Wilkes, entered Puget Sound in 1841. Wilkes bestowed many patriotically American place names; at the time the sovereignty of the Oregon Country was yet to be resolved between Britain and the United States. Many of Wilkes's names