 Province of Canada electoral district | |
|---|---|
| Defunct pre-Confederation electoral district | |
| Legislature | Legislative Assembly of the Province of Canada |
| District created | 1841 |
| District abolished | 1867 |
| First contested | 1841 |
| Last contested | 1863 |
Dorchester was an electoral district of the Legislative Assembly of the Parliament of the Province of Canada, in Canada East. It was created in 1841, by the merger of two previous electoral districts of the Legislative Assembly of Lower Canada, Dorchester and Beauce. The new district was south of Quebec City, and was represented by one member in the Legislative Assembly.
In 1853, the Parliament of the Province of Canada expanded the size of the Legislative Assembly. Canada East's representation increased from forty-two members to sixty-five members. In the redistribution of seats, the Dorchester riding was split into two ridings, with the new electoral district of Beauce carved off from Dorchester. The new electoral map came into force for the next general elections, in 1854.
Dorchester electoral district was abolished in 1867, upon the creation of Canada and the province of Quebec.