| W |
|---|
| Wabash township | Waddams township | Wade township-Clinton County |
| Wade township-Jasper County | Wadsworth | Waggoner |
| Waldo township | Walker township | Walkerville township |
| Wall township | Wallace township | Walnut Grove township-Knox County |
| Walnut Grove township-McDonough County | Walnut Hill | Walnut township |
| Walnut | Walshville township | Walshville |
| Waltham township | Waltonville | Wamac |
| Wapella township | Wapella | Wards Grove township |
| Warren township-Jo Daviess County | Warren township-Lake County | Warren |
| Warrensburg | Warrenville | Warsaw |
| Warsaw township | Washburn | Washington Park |
| Washington | Washington township-Carroll County | Washington township-Tazewell County |
| Washington township-Will County | Wataga | Waterford township |
| Waterloo | Waterman | Watseka |
| Watson township | Watson | Wauconda township |
| Wauconda | Waukegan | Waukegan township |
| Wauponsee township | Waverly | Wayne City |
| Wayne township | Wayne | Waynesville township |
| Waynesville | Webber township | Weldon |
| Weller township | Wellington | Wenona |
| Wesley township | West Brooklyn | West Chicago |
| West City | West Deerfield township | West Dundee |
| West Frankfort | West Galena township | West Jersey township |
| West Lincoln township | West Peoria | West Peoria township |
| West Point township | West Point | West Salem |
| West Union | West York | West township-Effingham County |
| West township-McLean County | Westchester | Western Mound township |
| Western Springs | Western township | Westervelt |
| Westfield township-Bureau County | Westfield township-Clark County | Westfield |
| Westmont | Westville | Wethersfield township |
| Wheatfield township | Wheatland township-Bureau County | Wheatland township-Fayette County |
| Wheatland township-Will County | Wheaton | Wheeler |
| Wheeling township | Wheeling | White City |
| White Hall | White Hall township | White Heath |
| White Oak township | White Rock township | Whiteash |
| Whitefield township | Whitley township | Whitmore township |
| Wilberton township | Wilcox township | Will township |
| Williams township | Williamsfield | Williamson |
| Williamsville | Willisville | Willow Branch township |
| Willow Creek township | Willow Hill township | Willow Hill |
| Willow Springs | Willowbrook CDP-IL | Willowbrook village-IL |
| Wilmette | Wilmington city-IL | Wilmington township |
| Wilmington village-IL | Wilson township | Wilsonville |
| Wilton township | Winchester | Windsor city-IL |
| Windsor township | Windsor village-IL | Winfield township |
| Winfield | Winnebago township | Winnebago |
| Winnetka | Winslow township | Winslow |
| Winthrop Harbor | Witt | Witt township |
| Wonder Lake | Wood Dale | Wood River |
| Wood River township | Woodbine township | Woodbury township |
| Woodhull | Woodland township-Carroll County | Woodland township-Fulton County |
| Woodland | Woodlawn | Woodridge |
| Woodside township | Woodson | Woodstock |
| Woodstock township | Woodville township | Woosung township |
| Worden | Worth township-Cook County | Worth township-Woodford County |
| Worth | Wrights township | Wyanet township |
| Wyanet | Wyoming | Wyoming township |
| Wysox township | Wythe township |
icon in upper right corner of each chart for information.
