- Wading River
- Wainscott
- Wakefield (Bronx, New York)
- Wakefield (Sussex, Virginia)
- Wallingford
- Wallops Island
- Walnut
- Walnutport
- Walworth County
- Wantagh
- Warehouse District.
- Warren (Litchfield, Connecticut)
- Warren County (New York)
- Warren County (Virginia)
- Warrenville
- Washington County
- Washington Heights (Chicago, Illinois)
- Washington Heights (Manhattan, New York)
- Washington Park
- Water Mill
- Waterbury
- Waterford
- Waterford Lakes
- Watertown
- Watts
- Wauconda
- Waukegan
- Waverly (Baltimore, Maryland)
- Waverly (Sussex, Virginia)
- Wayne
- Waynesboro (Waynesboro, Virginia)
- Weaversville
- Weeksville
- Wellington
- Wescosville
- West Adams
- West Babylon
- West Chicago
- West Covina
- West Easton
- West Farms
- West Garfield Park
- West Hartford
- West Haven
- West Hempstead
- West Hills
- West Hollywood
- West Islip
- West L.A.
- West Loop
- West Miami
- West Palm Beach
- West Point
- West Ridge
- West Sayville
- West Town
- West Village
- Westbury
- Westchester (Cook, Illinois)
- Westchester (Los Angeles, California)
- Westerleigh
- Western Branch
- Western Springs
- Westhampton
- Westhampton Beach
- Westminster (Carroll, Maryland)
- Westminster (Orange, California)
- Westmont
- Westmoreland County
- Weston (Broward, Florida)
- Weston (Fairfield, Connecticut)
- Westport
- Westwood
- Wethersfield
- Wheatley Heights
- Wheeling
- White Marsh
- Whitehall
- Whitehaven
- Whitestone
- Whittier
- Wicker Park
- Wicomico County
- Will County
- Williamsburg
- Williamsburg (Bronx, New York)
- Williamsburg (Brooklyn, New York)
- Williston Park
- Willow Springs
- Willowbrook
- Wilmette
- Wilson
- Wilton Manors
- Wind Gap
- Windermere
- Windham (Windham, Connecticut)
- Windsor (Hartford, Connecticut)
- Windsor (Isle of Wight, Virginia)
- Windsor Locks
- Windsor Mill
- Windsor Square
- Windsor Terrace
- Winfield
- Winnetka (Cook, Illinois)
- Winsted
- Winter Garden
- Winter Park
- Winter Springs
- Wonder Lake
- Woodbridge
- Woodbury
- Woodbury
- Woodhaven
- Woodland Hills
- Woodmere
- Woodridge
- Woodside
- Woodstock
- Worcester County
- Wrigleyville
- Wyandanch