- West Crow Island
- West Fire Island
- West Greenville
- West Township
- West Crawford Island
- Waccabuc
- Wackmans Mobile Home Park
- Waddington
- Wadhams
- Wading River
- Wading River Landing
- Wadsworth
- Wadsworth Cove
- Wagon Wheel Mobile Home Park
- Wagstaff Corner
- Wahmeda
- Wainscott
- Wakefield
- Walden
- Walden
- Walden Cliffs
- Walden Terrace
- Wales Center
- Wales Hollow
- Walesville
- Walker
- Walker
- Walker Valley
- Walkers Corners
- Walkleys Landing