Barrios de Missouri W
- Waldo (25)
- Walnut Park (2)
- Walnut Street (22)
- Washington Weatley (2)
- Webster Park/Shady Dell (2)
- Wedgewood Green (3)
- Wellston (1)
- Wendell Phillips (4)
- Wentzville (36)
- West Blue Valley (1)
- West Central (40)
- West End St Louis (6)
- West Plaza (27)
- West Springfield (36)
- Western 49-63 (1)
- Western Blue Township (1)
- Western Hills (5)
- Westside North (13)
- Westside South (3)
- Westwood (3)
- White Oak (1)
- Willow Creek (8)
- Winnetonka (3)
- Winnwood (2)
- Woodland Heights (13)
- Woods Chapel Acres (2)
- Woodson Terrace (4)
- Wydown Skinker (1)