Barrios de California W
- Waggner Ranch
- Wagon Wheel
- Walnut
- Walnut Blossom
- Walteria
- Warehouse District
- Warm Sands
- Warm Springs
- Warmsprings
- Warner Center
- Washington Culver
- Washington Manor-Bonaire
- Washington-Guadalupe
- Watts
- Weberstown/Kentfield
- Webster
- West
- West Adams
- West Alameda
- West Athens
- West Atherton
- West Beach
- West Campbell
- West Davis Manor
- West Downtown Santa Barbar
- West End
- West End Santa Rosa
- West Los Gatos
- West Manteca
- West Newport Beach
- West Oakland
- West Park
- West Redlands
- West Santa Barbara
- West Vallejo
- Westborough
- Western Addition
- Western Visalia
- Westlake
- Westlake
- Westlake North
- Westmont
- Westpark
- Westside
- Westside
- Westside Costa Mesa
- Westside Long Beach
- Westview
- Westwood
- Westwood
- Whisman Station
- Whitman-Wocine
- Whitney Ranch
- Whittier City
- Wible Orchard
- Wildwood Park
- Willard
- Willow Creek
- Willow Creek Estates South
- Willow Glen
- Willow Glen South-Lincoln Glen
- Willowbrook
- Wilshire Montana
- Wilson
- Winchester
- Windsor North River Ridge
- Windsor Village North
- Winter Gardens
- Wood Streets
- Woodbine
- Woodbridge
- Woodbury
- Woodbury
- Woodley
- Woodward Park
- Wooster-26th
- Wright Area
- Wrigley