Oshawa is a provincial electoral district

Electoral district (Canada)

An electoral district in Canada, also known as a constituency or a riding, is a geographical constituency upon which Canada's representative democracy is based...

 in Ontario

Ontario

Ontario is a province of Canada, located in east-central Canada. It is Canada's most populous province and second largest in total area. It is home to the nation's most populous city, Toronto, and the nation's capital, Ottawa....

, Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, that has been represented in the Legislative Assembly of Ontario

Legislative Assembly of Ontario

The Legislative Assembly of Ontario , is the legislature of the Canadian province of Ontario, and is the second largest provincial legislature of Canada...

 since 1955.

It consists of the southern and eastern parts of the City of Oshawa

Oshawa

Oshawa is a city in Ontario, Canada, on the Lake Ontario shoreline. It lies in Southern Ontario approximately 60 kilometres east of downtown Toronto. It is commonly viewed as the eastern anchor of both the Greater Toronto Area and the Golden Horseshoe. It is now commonly referred to as the most...

 south and east of a line drawn from west to east along King Street West, north along Oshawa Creek, east along Rossland Road West, north along Simcoe Street North and east along Winchester Road East. The riding includes the communities of Kedron

Kedron, Ontario

Kedron is a community in Ontario....

 and Taunton

Taunton, Ontario

Taunton is a community in the Canadian province of Ontario, located in the city of Oshawa near its municipal boundary with Clarington....

 and the eastern part of North Oshawa. It has a population of 113,662 and an area of 74 km².

In 1999, provincial ridings were defined to have the same borders as federal ridings.

Members of Provincial Parliament

Parliament	Years	Member		Party
25th 25th Legislative Assembly of Ontario The 25th Legislative Assembly of Ontario was in session from June 9, 1955 until May 4, 1959, just prior to the 1959 general election. The majority party was the Ontario Progressive Conservative Party led by Leslie Frost.- External links :*...	1955–1959		Thomas Thomas	CCF
26th 26th Legislative Assembly of Ontario The 26th Legislative Assembly of Ontario was in session from June 11, 1959 until August 16, 1963, just prior to the 1963 general election. The majority party was the Ontario Progressive Conservative Party led by Leslie Frost....	1959–1963			CCF/New Democrat
27th 27th Legislative Assembly of Ontario The 27th Legislative Assembly of Ontario was in session from September 25, 1963 until September 5, 1967, just prior to the 1967 general election. The majority party was the Ontario Progressive Conservative Party led by John Robarts.- External links :*...	1963–1967		Albert V. Walker	Progressive Conservative Progressive Conservative Party of Ontario The Progressive Conservative Party of Ontario , is a right-of-centre political party in Ontario, Canada. The party was known for many years as "Ontario's natural governing party." It has ruled the province for 80 of the years since Confederation, including an uninterrupted run from 1943 to 1985...
28th 28th Legislative Assembly of Ontario The 28th Legislative Assembly of Ontario was in session from October 17, 1967 until September 13, 1971, just prior to the 1971 general election. The majority party was the Ontario Progressive Conservative Party led by John Robarts....	1967–1971		Clifford Pilkey	New Democrat
29th 29th Legislative Assembly of Ontario The 29th Legislative Assembly of Ontario was in session from October 21, 1971 until August 11, 1975, just prior to the 1975 general election. The majority party was the Ontario Progressive Conservative Party led by Bill Davis.- External links :*...	1971–1975		Charles McIlveen	Progressive Conservative Progressive Conservative Party of Ontario The Progressive Conservative Party of Ontario , is a right-of-centre political party in Ontario, Canada. The party was known for many years as "Ontario's natural governing party." It has ruled the province for 80 of the years since Confederation, including an uninterrupted run from 1943 to 1985...
30th 30th Legislative Assembly of Ontario The 30th Legislative Assembly of Ontario was in session from September 18, 1975 until April 29, 1977, just prior to the 1977 general election. The Ontario Progressive Conservative Party led by Bill Davis formed a minority government.- External links :*...	1975–1977		Mike Breaugh	New Democrat
31st 31st Legislative Assembly of Ontario The 31st Legislative Assembly of Ontario was in session from June 9, 1977 until February 2, 1981, just prior to the 1981 general election. The Ontario Progressive Conservative Party led by Bill Davis formed a second consecutive minority government....	1977–1981
32nd 32nd Legislative Assembly of Ontario The 32nd Legislative Assembly of Ontario was in session from March 19, 1981 until March 25, 1985, just prior to the 1985 general election. The majority party was the Ontario Progressive Conservative Party led by Bill Davis....	1981–1985
33rd 33rd Legislative Assembly of Ontario The 33rd Legislative Assembly of Ontario was in session from May 2, 1985 until July 31, 1987, just prior to the 1987 general election. The Ontario Liberal Party led by David Peterson formed a minority government with the support of the Ontario New Democratic Party.- External links :*...	1985–1987
34th 34th Legislative Assembly of Ontario The 34th Legislative Assembly of Ontario was in session from September 10, 1987 until July 30, 1990, just prior to the 1990 general election. The majority party was the Ontario Liberal Party led by David Peterson.- External links :*...	1987–1990
35th 35th Legislative Assembly of Ontario The 35th Legislative Assembly of Ontario was in session from September 6, 1990 until April 28, 1995, just prior to the 1995 general election. The majority party was the Ontario New Democratic Party led by Bob Rae....	1990–1995		Allan Pilkey Allan Pilkey Allan Pilkey is a former politician in Ontario, Canada. He served as mayor of Oshawa, and was a New Democratic Party member of the Legislative Assembly of Ontario from 1990 to 1995.-Background:...
36th 36th Legislative Assembly of Ontario The 36th Legislative Assembly of Ontario, Canada's most-populous province, was in session from June 8, 1995 until May 5, 1999, just prior to the Ontario general election. Majority was held by the Ontario Progressive Conservative Party led by Mike Harris....	1995–1999		Jerry Ouellette Jerry Ouellette Jerry J. Ouellette is a politician in Ontario, Canada. He has been a member of the Legislative Assembly of Ontario since 1995, representing the riding of Oshawa for the Progressive Conservative Party. Ouellette was Minister of Natural Resources in the government of Ernie Eves.Ouellette graduated...	Progressive Conservative Progressive Conservative Party of Ontario The Progressive Conservative Party of Ontario , is a right-of-centre political party in Ontario, Canada. The party was known for many years as "Ontario's natural governing party." It has ruled the province for 80 of the years since Confederation, including an uninterrupted run from 1943 to 1985...
37th 37th Legislative Assembly of Ontario The 37th Legislative Assembly of Ontario, Canada's most populous province, was in session from June 8, 1999 until May 5, 2003, just prior to the Ontario general election...	1999–2003
38th 38th Legislative Assembly of Ontario The 38th Legislative Assembly of Ontario was a legislature of the government of the Province of Ontario, Canada. It officially opened November 19, 2003, at Queen's Park in Toronto, and ended on June 5, 2007...	2003–2007
39th 39th Legislative Assembly of Ontario The 39th Legislative Assembly of Ontario is the current legislature of the government of the Province of Ontario, Canada. It officially opened November 29, 2007, at Queen's Park in Toronto. The membership was set by the 2007 Ontario general election on October 10, 2007.It is controlled by a...	2007–present

Election results

Note: the 2011 election will be held on October 6, 2011.

2007 electoral reform referendum

Ontario electoral reform referendum, 2007 Ontario electoral reform referendum, 2007 An Ontario electoral reform referendum was held on October 10, 2007, in an attempt to establish a mixed member proportional representation system for elections to the Legislative Assembly of Ontario...
Side		Votes	%
	First Past the Post	25,559	64.1
	Mixed member proportional	14,305	35.9
	Total valid votes	39,864	100.0

Sources

• Elections Ontario Past Election Results