Wellington—Halton Hills (provincial electoral district)
| Ontario electoral district | |||
|---|---|---|---|
Wellington-Halton Hills in relation to other southern Ontario ridings | |||
| Provincial electoral district | |||
| Legislature | Legislative Assembly of Ontario | ||
| MPP |
Progressive Conservative | ||
| District created | 2004 | ||
| First contested | 2007 | ||
| Last contested | 2025 | ||
| Demographics | |||
| Population (2016) | 120,985 | ||
| Electors (2018) | 96,887 | ||
| Area (km²) | 1,514 | ||
| Pop. density (per km²) | 79.9 | ||
| Census division(s) | Wellington County, Halton | ||
| Census subdivision(s) | Guelph, Guelph/Eramosa, Puslinch, Erin, Centre Wellington, Halton Hills | ||
Wellington—Halton Hills is a provincial electoral district in western Ontario, Canada. It elects one member to the Legislative Assembly of Ontario.
The riding, which was first contested in the 2007 provincial election, consists of the municipalities of Guelph/Eramosa, Puslinch, Erin, Centre Wellington and Halton Hills.
47.5% of the riding came from Halton, 25.2% came from Waterloo—Wellington, 16.3% came from Guelph—Wellington and 11% came from Dufferin—Peel—Wellington—Grey. Although it is counted as a Midwestern Ontario riding, the Halton Hills portion is part of the Greater Toronto Area.