- Walcott
- Waltman
- Waltman
- Wamsutter
- Wapiti
- Warren AFB
- Washakie Ten
- Washam
- Wendover
- West Lance Creek
- West Laramie
- West River
- West Thumb
- Weston
- Westvaco
- Westview Circle
- Wheatland
- Whipple Hollow
- Whiting
- Whitman
- Wilcox
- Wildcat
- Willamette Mobile Home Park
- Willow Addition
- Willow Creek
- Willow Island
- Willow Springs
- Willwood
- Wilson
- Winchester