- Welge
- Welland
- Weller's Subdivision
- Wellington
- Wellington Heights
- Wells Corners
- Wempletown
- Wendel
- Wendelin
- Wenmoth Acres
- Wenona
- Wenonah
- Wertenberg
- Wesglen
- Wesley
- Wesmere
- Weson Island
- West Brooklyn
- West Chicago
- West City
- West Dundee
- West End
- West Frankfort
- West Grand Place
- West Hallock
- West Harvey
- West Highland Acres
- West Jersey
- West Junction
- West Kankakee