- Wallace River Mobile Home Park
- Wallner
- Wallula Junction
- Walnut Grove Mobile Home Park
- Walters
- Walville
- Wanapum Village
- Ward
- Warden Hutterian Brethren
- Warm Beach Estates Mobile Home Park
- Warner
- Warnick
- Warren
- Warrenville
- Warwick
- Wasankaris Mobile Home Park
- Washburn Island
- Washington Harbor
- Washington Park
- Wasp Islands
- Waterford
- Waterloo
- Waterman
- Waterman Point
- Waterworks
- Wauconda
- Waukon
- Wauna
- Wautauga Beach
- Wawawai