Waimakariri is a New Zealand parliamentary electorate, formed for the 1996 election and returning one Member of Parliament to the New Zealand House of Representatives. The MP for Waimakariri is Matt Doocey of the National Party. He has held this position since the 2014 election and takes over from Kate Wilkinson, who defeated Clayton Cosgrove (Labour) in the 2011 election.
Waimakariri centres on metropolitan Christchurch and spreads northward up the coast of the South Island. From Christchurch it contains the suburbs of Casebrook and Belfast; from Waimakariri District to its north, it takes in the towns of Kaiapoi and Rangiora as well as a selection of small inland localities such as Cust and Oxford. Boundary changes following the 2006 census were relatively minor; Waimakariri managed to avoid the upheaval wrought upon electorates in Christchurch, losing Bishopdale to Ilam and the last remaining segment of Papanui to Christchurch Central.
Along with neighbouring Selwyn, Waimakariri has been experiencing strong population growth, with many people from Christchurch displaced by the earthquakes. In the 2013/14 boundary review by the Representation Commission, Waimakariri lost most of Redwood and Marshland to Christchurch Central and Christchurch East respectively, while it gained the less populated Harewood north of Sawyers Arms Road from Selwyn.
The existence of Waimakariri dates back to the introduction of MMP voting in the 1996 general election, when the number of South Island electorates fell from twenty-five to sixteen. The electorate originates in the old Rangiora electorate, with Hurunui District shorn off and placed in Kaikōura, and the resultant electorate pulled into Christchurch via State Highway 71, absorbing parts of Christchurch previously in the electorate of Christchurch North. The first contest saw Rangiora's Jim Gerard easily defeated by former Prime Minister and MP for Christchurch North, Mike Moore. He left the office in July 1999, having been elected Director-General of the World Trade Organization.
Clayton Cosgrove won the second contest in 1999 and was confirmed in 2002, 2005 and 2008.
Given that Rangiora was a safe National electorate and Christchurch North a safe Labour electorate, and given the urban-rural makeup of the electorate, Waimakariri does not favour any party. At the 2005 election, while Waimakariri's electors were returning incumbent Clayton Cosgrove by 5,064 votes (and in the process slashing his majority in half), their party vote intentions were more ambiguous, with National winning 79 more party votes than Labour, setting Waimakariri up to be a key electorate at the 2008 election. Cosgrove retained the electorate with a much narrower 390 majority in 2008, whilst his opponent Kate Wilkinson's party (National) got over 5000 more party votes.
Results from the 2011 election gave Wilkinson a lead of 642 votes over Cosgrove, shifting the electorate from marginal Labour to marginal National.Wilkinson retired at the end of the parliamentary term and was replaced as National's candidate for the 2014 election by Matt Doocey, who had previously contested the 2013 by-election in Christchurch East. Doocey beat Cosgrove with an increased majority.
In the 2017 election, Doocey beat the Labour candidate, Dan Rosewarne, with an increased majority of that over Cosgrove although the National party vote decreased.
Key National Alliance NZ FirstLabour
|1996 election||Mike Moore|
|1999 election||Clayton Cosgrove|
|2011 election||Kate Wilkinson|
|2014 election||Matt Doocey|
Members of Parliament elected from party lists in elections where that person also unsuccessfully contested the Waimakariri electorate. Unless otherwise stated, all MPs terms began and ended at general elections.
|1996 election||Jim Gerard 1|
|1999 election||Ron Mark|
|2002 election||Ron Mark|
|2005 election||Ron Mark|
|2008 election||Kate Wilkinson|
|2011 election||Clayton Cosgrove|
|2014 election||Clayton Cosgrove|
1Jim Gerard retired in April 1997 to take appointment as High Commissioner to Canada
|2020 general election: Waimakariri|
Blue background denotes the winner of the electorate vote.
|New Conservative||Leighton Baker||2,057||4.41||+3.74||1,399||2.99||+2.57|
|Sustainable NZ||John Hyndman||405||0.87||—||55||0.21||—|
|Advance NZ||Shelley Richardson||363||0.78||—||353||0.76||—|
|Social Credit||Lawrence McIsaac||128||0.27||+0.13||40||0.08||-0.09|
|Total Valid votes||46,593||46,823|
|2017 general election: Waimakariri|
Blue background denotes the winner of the electorate vote.
|NZ First||Richard Prosser||1,771||4.50||+1.63||2,653||6.64||-1.80|
|Māori Party||Aroha Reriti-Crofts||122||0.31||+0.05||85||0.21||-0.05|
|Total Valid votes||39,334||39,958|
|2014 general election: Waimakariri|
Blue background denotes the winner of the electorate vote.
|NZ First||Richard Prosser||1,024||2.87||+1.21||3,054||8.44||+3.52|
|Māori Party||Aroha Reriti-Crofts||92||0.26||+0.09||95||0.26||0.00|
|Total Valid votes||35,712||36,168|
|2011 general election: Waimakariri|
|Labour||N Clayton Cosgrove||16,145||45.48||+1.39||8,431||23.41||-10.46|
|Conservative||Tim de Vries||785||2.21||+2.21||1,177||3.27||+3.27|
|NZ First||Richard Prosser||588||1.66||-1.46||2,131||5.92||+1.96|
|Total Valid votes||35,502||36,016|
|National gain from Labour||Majority||642||1.81||+2.86|
Electorate (as at 26 November 2011): 47,387
|2008 general election: Waimakariri|
|NZ First||Melanie Mark-Shadbolt||1,157||3.12||1,482||3.95|
|United Future||Kelleigh Sheffield-Cranstoun||114||0.31||342||0.91|
|Bill and Ben||228||0.61|
|Total Valid votes||37,107||37,501|
|2005 general election: Waimakariri|
|NZ First||Ron Mark||4,247||10.82||-5.90||2,453||6.17|
|United Future||John Pickering||651||1.66||1,295||3.26|
|Legalise Cannabis||Michael Britnell||289||0.74||125||0.31|
|Direct Democracy||Jason Orme||23||0.06||5||0.01|
|Total Valid votes||39,258||39,744|
Refer to Candidates in the New Zealand general election 1999 by electorate#Waimakariri for a list of candidates.
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