In the 2021 Census of Population conducted by Statistics Canada, Wilmot had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of , it had a population density of in 2021.
{| class="wikitable" style="float:right;"
|+ 10 largest self-identified ethnic groups:
|- "
!Ethnic origin
!Population
!Percent
|-
|German
|8,305
|40.9
|-
|Canadian
|5,785
|28.5
|-
|English
|5,525
|27.2
|-
|Scottish
|4,500
|22.2
|-
|Irish
|3,830
|18.9
|-
|French
|1,980
|10.0
|-
|Dutch
|1,570
|7.7
|-
|Polish
|1,005
|5.0
|-
|Italian
|615
|3.0
|-
|Ukrainian
|455
|2.2
|-
|colspan=3|<small>Source: StatCan, 2016 (includes multiple responses)</small> as well as the in nearby Kitchener. The single largest self-reported ethnicity was German (); also reported knowledge of the German language and reported it as a mother tongue. The second-largest self-identified ethnic origin was Canadian (), followed by English (), Scottish (), and Irish (). of people identified themselves as Eastern European, of which the largest ethnic group was Polish (). of people identified themselves as Southern European, of which the largest ethnic group was Italian (). of people identified themselves as Indigenous ( as First Nations and as Métis).
Passenger trains on Via Rail's Québec City–Windsor Corridor pass through Wilmot daily, but run as expresses through the township and do not stop. The nearest passenger train stations are Stratford to the west and to the east. GO Train service on the Kitchener line is also available at Kitchener station, which is its western terminus. A GO train station and storage and maintenance yard were planned to be located near Baden, but these plans were deferred following the opening of a GO train depot on Shirley Avenue in Kitchener instead.
, Wilmot is served by a single bus route, Grand River Transit's Route 77 Wilmot. It operates on a 12-hour weekday schedule and uses "flex stops" to provide more convenient service to riders in certain areas. The route connects New Hamburg, Baden, and Petersburg to the Boardwalk bus terminal on the west end of Kitchener-Waterloo. After an initial pilot in 2016–17 which was funded by a provincial community transportation grant, the route was made a permanent part of the Grand River Transit system.
Athletics
- Wilmot Aquatic Aces Swim Club
- New Hamburg Firebirds (Hockey)
- New Hamburg Huskies (Hockey)
- Wilmot Warthogs (Rugby)
See also
- List of townships in Ontario
- List of municipalities in Ontario