| Enumerated Area | pre1851 | 1851 | 1861 | 1871 | 1881 | 1891 | 1901 | 1911 |
| Wabigoon Twp | ALG | TBRR | ||||||
| Wabigoon Village | TBRR | |||||||
| Wabinosh | TBRR | |||||||
| Wabinosh Bay | TBRR | |||||||
| Wainfleet Twp | LIN | WLD | WLD | WLD | WLD | HLD | WLD | |
| Wainwright Twp | ALG | TBRR | ||||||
| Waks | TBRR | |||||||
| Waldermar Village | DUF | |||||||
| Wales | STO | |||||||
| Walford Village | NIP | ALG | ||||||
| Walker | NIP | |||||||
| Walkerton Town | BRU | BRU | BRU | BRU | ||||
| Walkerville Town | ESS | ESS | ESS | |||||
| Wallace Twp | PER | PER | PER | WGT | WGT | PER | ||
| Wallaceburg Town | KEN | KEN | KEN | KEN | ||||
| Wallacetown Village | ELG | |||||||
| Wallbridge Twp | MUS | PSD | ||||||
| Wallbridge Village | HAS | |||||||
| Walpole Island | LAM | LAM | LAM | |||||
| Walpole Twp | HLD | HLD | HLD | HLD | HLD | HLD | NRF | HLD |
| Walsh Lake | TBRR | |||||||
| Walsh Village | NRF | |||||||
| Walsh's Mining Camp | ALG | |||||||
| Walsingham Centre Village | NRF | |||||||
| Walsingham North Twp | NRF | NRF | ||||||
| Walsingham South Twp | NRF | NRF | ||||||
| Walsingham Twp | NRF | NRF | NRF | NRF | NRF | |||
| Wardsville Village | MID | MID | MID | MID | MID | |||
| Ware Twp | ALG | TBRR | ||||||
| Warkworth Village | NUL | |||||||
| Warren Village | NIP | |||||||
| Warsaw Village | PET | |||||||
| Warwick Twp | MS | LAM | LAM | LAM | LAM | LAM | LAM | |
| Washago Village | SIM | |||||||
| Waterdown Village | WTW | WTW | WTW | WTW | ||||
| Waterford Village | NRF | NRF | NRF | NRF | ||||
| Waterloo Town | WAT | WAT | WAT | WAT | WAT | WAT | ||
| Waterloo Twp | WAT | WAT | WAT | WAT | WAT | |||
| Waterloo Twp North | WAT | WAT | WAT | WAT | ||||
| Waterloo Twp South | WAT | WAT | WAT | WAT | WAT | |||
| Waters Twp | NIP | ALG | ||||||
| Watford Village | LAM | LAM | LAM | LAM | ||||
| Watt Twp | MUS | MUS | MUS | MUS | MUS | |||
| Watten | TBRR | |||||||
| Waverley Village | SIM | |||||||
| Wawa City Village | ALG | |||||||
| Wawanosh East Twp | HUR | HUR | HUR | HUR | HUR | |||
| Wawanosh Twp | HUR | HUR | HUR | |||||
| Wawanosh West Twp | HUR | HUR | HUR | HUR | HUR | |||
| Webbwood | ALG | |||||||
| Welland Junction | WLD | |||||||
| Welland Town | WLD | WLD | WLD | WLD | WLD | WLD | ||
| Wellandport Village | LIN | |||||||
| Wellburn Village | MID | |||||||
| Wellesley Twp | WAT | WAT | WAT | WAT | WAT | WAT | WAT | |
| Wellington Village | PED | PED | PED | PED | PED | |||
| Wellmans Corners | HAS | |||||||
| Wells Twp | ALG | ALG | ||||||
| West Bay | ALG | |||||||
| West Bay Indian Reserve | ALG | |||||||
| West Brook Village | FRO | |||||||
| West Flamborough Village | WTW | |||||||
| West Hamilton | WTW | |||||||
| West Lorne | ELG | |||||||
| West Railway | TBRR | |||||||
| Westmeath Twp | REN | REN | REN | REN | REN | REN | REN | REN |
| Westminster Twp | MID | MID | MID | MID | MID | MID | MID | MID |
| Weston Village | YOR | YOR | YOR | |||||
| Westover Village | WTW | |||||||
| Westport | LnA | |||||||
| Westwood Village | PET | |||||||
| Wexford Village | GVL | |||||||
| Wheatley Village | ESS | |||||||
| Wheatley Village | KEN | |||||||
| Whitby East Twp | ONT | ONT | ONT | ONT | ONT | ONT | ||
| Whitby Town | ONT | ONT | ONT | ONT | ONT | ONT | ||
| Whitby Twp | ONT | |||||||
| Whitby West Twp | ONT | ONT | ONT | ONT | ONT | ONT | ||
| Whitchurch Twp | YOR | YOR | YOR | ONT | ONT | YOR | ||
| White Dog Post | TBRR | |||||||
| White River Twp | ALG | ALG | ||||||
| Whitechurch | BRU | |||||||
| Whitefish | NIP | |||||||
| Whitefish Bay | TBRR | |||||||
| Whitefish Lake | TBRR | |||||||
| Whitefish Lake Indian Reserve | ALG | |||||||
| Whitefish River Indian Reserve | NIP | |||||||
| Whitefish River Mouth | ALG | |||||||
| Whitefish Station Twp | ALG | |||||||
| Whitesides | ALG | |||||||
| Whitevale | ONT | |||||||
| Whitney Twp | ALG | |||||||
| Wiarton Town | BRU | BRU | BRU | BRU | ||||
| Wicklow Twp | HAS | HAS | HAS | HAS | HAS | |||
| Wicklow Village | NUL | |||||||
| Widder | LAM | |||||||
| Widdifield Twp | NIP | NIP | ||||||
| Wikwemikong | ALG | ALG | ALG | |||||
| Wilberforce Twp | REN | REN | REN | REN | REN | REN | REN | |
| Wilberforce Village | VIC | |||||||
| Wilbur Village | LNK | |||||||
| Wilfrid Village | ONT | |||||||
| Wilkes Twp | NIP | NIP | ||||||
| Wilkesport Village | LAM | |||||||
| Williams East Twp | MID | MID | MID | MID | MID | MID | ||
| Williams Twp | MID | |||||||
| Williams West Twp | MID | MID | MID | MID | MID | MID | ||
| Williamsburg Police Village | DUN | |||||||
| Williamsburg Twp | DUN | DUN | DUN | DUN | DUN | DUN | DUN | |
| Williamsford Village | GRY | |||||||
| Willoughby Twp | WLD | WLD | WLD | WLD | WLD | WLD | WLD | WLD |
| Wilmot Twp | WAT | WAT | WAT | WAT | WAT | WAT | WAT | WAT |
| Wilno Village | REN | |||||||
| Wilson Twp | MUS | PSD | ||||||
| Wilsonville Village | NRF | |||||||
| Wilton Village | LnA | |||||||
| Winchester Springs Village | DUN | |||||||
| Winchester Twp | DUN | DUN | DUN | DUN | DUN | DUN | DUN | |
| Winchester Village | DUN | DUN | DUN | |||||
| Windermere | ALG | |||||||
| Windham Twp | NRF | NRF | NRF | NRF | NRF | NRF | NRF | |
| Windsor City | ESS | ESS | ESS | ESS | ESS | ESS | ||
| Wingham Town | HUR | HUR | HUR | HUR | ||||
| Winston's Siding | ALG | |||||||
| Winterbourne Village | WAT | |||||||
| Wisner | NIP | |||||||
| Wiwawasa Village | PSD | |||||||
| Wolf Island | ALG | |||||||
| Wolfe Island | FRO | FRO | FRO | FRO | FRO | FRO | FRO | |
| Wolford Twp | GVL | GVL | GVL | GVL | GVL | GVL | GVL | GVL |
| Wollaston Twp | HAS | HAS | HAS | HAS | ||||
| Wolsley Indian Reserve | ALG | |||||||
| Wood | ALG | |||||||
| Wood Twp | MUS | MUS | SIM | SIM | MUS | |||
| Woodbridge Village | YOR | YOR | YOR | |||||
| Woodham Village | PER | |||||||
| Woodham Village | HUR | |||||||
| Woodhouse Twp | NRF | NRF | NRF | NRF | NRF | NRF | NRF | NRF |
| Woodstock City | OXF | OXF | OXF | OXF | OXF | OXF | OXF | |
| Woodville Village | VIC | VIC | VIC | |||||
| Woodyatt Twp | TBRR | |||||||
| Wooler Village | NUL | |||||||
| Woolwich Twp | WAT | WAT | WAT | WAT | WAT | WAT | WAT | WAT |
| Worthington | NIP | ALG | ||||||
| Worthington | TBRR | |||||||
| Wroxeter Village | HUR | HUR | HUR | HUR | ||||
| Wyebridge Village | SIM | |||||||
| Wyecomb Village | NRF | |||||||
| Wylie Twp | REN | REN | REN | REN | REN | REN | ||
| Wyoming Village | LAM | LAM | LAM | LAM |