# Waimakariri (New Zealand electorate)

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.

## Population areas

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.

## History

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.

### Members of Parliament

Key  Labour National Alliance NZ First
| Election | Winner |
| 1996 election | Mike Moore |
| 1999 election | Clayton Cosgrove |
| 2002 election | Clayton Cosgrove |
| 2005 election | Clayton Cosgrove |
| 2008 election | Clayton Cosgrove |
| 2011 election | Kate Wilkinson |
| 2014 election | Matt Doocey |
| 2017 election | Matt Doocey |
| 2020 election | Matt Doocey |
| 2023 election | Matt Doocey |

### List MPs

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.
| Election | Winner |
| 1996 election | Jim Gerard$^1$ |
| 1996 election | John Wright |
| 1999 election | Ron Mark |
| 1999 election | John Wright |
| 2002 election | Ron Mark |
| 2005 election | Ron Mark |
| 2005 election | Kate Wilkinson |
| 2008 election | Kate Wilkinson |
| 2011 election | Clayton Cosgrove |
| 2011 election | Richard Prosser |
| 2014 election | Clayton Cosgrove |
| 2014 election | Richard Prosser |
| 2022 | Dan Rosewarne$^2$ |
$^1$Jim Gerard retired in April 1997 to take appointment as High Commissioner to Canada $^2$Rosewarne entered Parliament on 25 July 2022, following the resignation of Kris Faafoi.

## Election results
### 2023 election

2023 general election: Waimakariri :
| Notes: | Notes: | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. |
| Party | Party | Candidate | Candidate | Votes | % | ±% | Party votes | % | ±% |
| | National | Y Matt Doocey | Y Matt Doocey | 26,816 | 57.66 | +11.70 | 19,969 | 42.61 | +14.32 |
| | Labour | Dan Rosewarne | Dan Rosewarne | 13,806 | 29.69 | -13.04 | 11,317 | 24.15 | -25.16 |
| | ACT | Ross Eric Campbell | Ross Eric Campbell | 2,066 | 4.44 | +1.53 | 4,941 | 10.54 | +1.31 |
| | Leighton Baker Party | Leighton Baker | Leighton Baker | 1,815 | 3.90 | -0.51 | 302 | 0.64 | — |
| | DemocracyNZ | Gordon Malcolm | Gordon Malcolm | 1,530 | 3.29 | — | 461 | 0.98 | — |
| | Green | | | | | | 3,996 | 8.53 | +3.90 |
| | NZ First | | | | | | 3,285 | 7.01 | +4.90 |
| | Opportunities | | | | | | 1,034 | 2.21 | +1.28 |
| | NZ Loyal | | | | | | 440 | 0.94 | — |
| | Te Pāti Māori | | | | | | 238 | 0.51 | +0.35 |
| | NewZeal | | | | | | 199 | 0.42 | +0.32 |
| | Legalise Cannabis | | | | | | 179 | 0.38 | +0.01 |
| | New Conservative | | | | | | 108 | 0.23 | -2.76 |
| | Animal Justice | | | | | | 102 | 0.22 | — |
| | Freedoms NZ | | | | | | 82 | 0.17 | — |
| | Women's Rights | | | | | | 48 | 0.10 | — |
| | New Nation | | | | | | 20 | 0.04 | — |
| Informal votes | Informal votes | Informal votes | Informal votes | 474 | | | 142 | | |
| Total valid votes | Total valid votes | Total valid votes | Total valid votes | 46,507 | | | 46,863 | | |
| | National hold | National hold | Majority | 13,010 | 27.97 | -24.74 | | | |

### 2020 election

2020 general election: Waimakariri :
| Notes: | Notes: | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. |
| Party | Party | Candidate | Candidate | Votes | % | ±% | Party votes | % | ±% |
| | National | Y Matt Doocey | Y Matt Doocey | 21,416 | 45.96 | -11.64 | 13,245 | 28.29 | -25.26 |
| | Labour | Dan Rosewarne | Dan Rosewarne | 19,909 | 42.73 | +12.5 | 23,088 | 49.31 | +19.08 |
| | New Conservative | Leighton Baker | Leighton Baker | 2,057 | 4.41 | +3.74 | 1,399 | 2.99 | +2.57 |
| | ACT | James Davies | James Davies | 1,355 | 2.91 | +2.68 | 4,324 | 9.23 | +8.94 |
| | Sustainable NZ | John Hyndman | John Hyndman | 405 | 0.87 | — | 55 | 0.21 | — |
| | Advance NZ | Shelley Richardson | Shelley Richardson | 363 | 0.78 | — | 353 | 0.76 | — |
| | Independent | Bjorn Sadler | Bjorn Sadler | 197 | 0.42 | — | | | |
| | Social Credit | Lawrence McIsaac | Lawrence McIsaac | 128 | 0.27 | +0.13 | 40 | 0.08 | -0.09 |
| | Green | | | | | | 2168 | 4.63 | +0.51 |
| | NZ First | | | | | | 989 | 2.11 | -4.53 |
| | Opportunities | | | | | | 435 | 0.93 | -0.86 |
| | Legalise Cannabis | | | | | | 174 | 0.37 | -0.13 |
| | Māori Party | | | | | | 74 | 0.16 | -0.08 |
| | ONE | | | | | | 49 | 0.10 | — |
| | Outdoors | | | | | | 37 | 0.08 | — |
| | Vision NZ | | | | | | 20 | 0.04 | — |
| | TEA | | | | | | 14 | 0.03 | — |
| | Heartland | | | | | | 3 | 0.01 | — |
| Informal votes | Informal votes | Informal votes | Informal votes | 763 | | | 356 | | |
| Total valid votes | Total valid votes | Total valid votes | Total valid votes | 46,593 | | | 46,823 | | |
| Turnout | Turnout | Turnout | Turnout | 46,823 | | | | | |
| | National hold | National hold | Majority | 1,507 | 3.23 | -21.78 | | | |

### 2017 election

2017 general election: Waimakariri :
| Notes: | Notes: | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. |
| Party | Party | Candidate | Candidate | Votes | % | ±% | Party votes | % | ±% |
| | National | Y Matt Doocey | Y Matt Doocey | 22,657 | 57.60 | +9.26 | 21,398 | 53.55 | -3.78 |
| | Labour | Dan Rosewarne | Dan Rosewarne | 11,891 | 30.23 | -11.09 | 12,888 | 32.25 | +13.25 |
| | Green | Nikki Berry | Nikki Berry | 1,799 | 4.57 | +0.35 | 1,645 | 4.12 | -4.72 |
| | NZ First | Richard Prosser | Richard Prosser | 1,771 | 4.50 | +1.63 | 2,653 | 6.64 | -1.80 |
| | Opportunities | Nicola Glenjarman | Nicola Glenjarman | 583 | 1.48 | — | 714 | 1.79 | — |
| | Conservative | Benjamin Price | Benjamin Price | 265 | 0.67 | -1.61 | 166 | 0.42 | -3.89 |
| | Māori Party | Aroha Reriti-Crofts | Aroha Reriti-Crofts | 122 | 0.31 | +0.05 | 85 | 0.21 | -0.05 |
| | Independent | Destiny Wiringi | Destiny Wiringi | 99 | 0.25 | — | | | |
| | ACT | Stuart Hawkins | Stuart Hawkins | 92 | 0.23 | — | 116 | 0.29 | +0.07 |
| | Democrats | Peter Adcock-White | Peter Adcock-White | 55 | 0.14 | -0.03 | 69 | 0.17 | -0.02 |
| | Legalise Cannabis | | | | | | 97 | 0.24 | -0.11 |
| | Ban 1080 | | | | | | 35 | 0.09 | -0.10 |
| | United Future | | | | | | 35 | 0.09 | -0.10 |
| | Outdoors | | | | | | 33 | 0.08 | — |
| | People's Party | | | | | | 13 | 0.03 | — |
| | Internet | | | | | | 6 | 0.02 | -0.37 |
| | Mana Party | | | | | | 5 | 0.01 | -0.38 |
| Informal votes | Informal votes | Informal votes | Informal votes | 261 | | | 103 | | |
| Total valid votes | Total valid votes | Total valid votes | Total valid votes | 39,334 | | | 39,958 | | |
| Turnout | Turnout | Turnout | Turnout | 40,012 | | | | | |
| | National hold | National hold | Majority | 10,766 | 25.01 | +17.99 | | | |

### 2014 election

2014 general election: Waimakariri :
| Notes: | Notes: | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. |
| Party | Party | Candidate | Candidate | Votes | % | ±% | Party votes | % | ±% |
| | National | Matt Doocey | Matt Doocey | 17,263 | 48.34 | +1.06 | 20,734 | 57.33 | +0.44 |
| | Labour | Clayton Cosgrove | Clayton Cosgrove | 14,757 | 41.32 | -4.16 | 6,835 | 18.90 | -3.51 |
| | Green | Reuben Hunt | Reuben Hunt | 1,506 | 4.22 | +0.85 | 3,198 | 8.84 | +0.37 |
| | NZ First | Richard Prosser | Richard Prosser | 1,024 | 2.87 | +1.21 | 3,054 | 8.44 | +3.52 |
| | Conservative | Benjamin Price | Benjamin Price | 816 | 2.28 | +0.07 | 1,560 | 4.31 | +1.04 |
| | Māori Party | Aroha Reriti-Crofts | Aroha Reriti-Crofts | 92 | 0.26 | +0.09 | 95 | 0.26 | 0.00 |
| | Democrats | Peter Adcock-White | Peter Adcock-White | 62 | 0.17 | +0.17 | 69 | 0.19 | +0.13 |
| | Internet Mana | | | | | | 141 | 0.39 | +0.29 |
| | Legalise Cannabis | | | | | | 127 | 0.35 | -0.08 |
| | ACT | | | | | | 80 | 0.22 | -0.34 |
| | Ban 1080 | | | | | | 69 | 0.19 | +0.19 |
| | United Future | | | | | | 66 | 0.18 | +0.18 |
| | Civilian | | | | | | 15 | 0.04 | +0.04 |
| | Independent Coalition | | | | | | 6 | 0.02 | +0.02 |
| | Focus | | | | | | 5 | 0.01 | +0.01 |
| Informal votes | Informal votes | Informal votes | Informal votes | 192 | | | 114 | | |
| Total valid votes | Total valid votes | Total valid votes | Total valid votes | 35,712 | | | 36,168 | | |
| | National hold | National hold | Majority | 2,506 | 7.02 | +5.21 | | | |

### 2011 election

2011 general election: Waimakariri :
| Notes: | Notes: | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. |
| Party | Party | Candidate | Candidate | Votes | % | ±% | Party votes | % | ±% |
| | National | Kate Wilkinson | Kate Wilkinson | 16,787 | 47.28 | +4.25 | 20,489 | 56.89 | +7.45 |
| | Labour | N Clayton Cosgrove | N Clayton Cosgrove | 16,145 | 45.48 | +1.39 | 8,431 | 23.41 | -10.46 |
| | Green | John Kelcher | John Kelcher | 1,197 | 3.37 | -0.01 | 3,050 | 8.47 | +3.04 |
| | Conservative | Tim de Vries | Tim de Vries | 785 | 2.21 | +2.21 | 1,177 | 3.27 | +3.27 |
| | NZ First | Richard Prosser | Richard Prosser | 588 | 1.66 | -1.46 | 2,131 | 5.92 | +1.96 |
| | United Future | | | | | | 208 | 0.58 | -0.33 |
| | ACT | | | | | | 195 | 0.54 | -2.00 |
| | Legalise Cannabis | | | | | | 155 | 0.43 | +0.10 |
| | Māori Party | | | | | | 93 | 0.26 | -0.12 |
| | Mana | | | | | | 35 | 0.10 | -0.12 |
| | Democrats | | | | | | 23 | 0.06 | -0.02 |
| | Alliance | | | | | | 17 | 0.05 | -0.06 |
| | Libertarianz | | | | | | 12 | 0.03 | +0.01 |
| Informal votes | Informal votes | Informal votes | Informal votes | 490 | | | 297 | | |
| Total valid votes | Total valid votes | Total valid votes | Total valid votes | 35,502 | | | 36,016 | | |
| | National gain from Labour | National gain from Labour | Majority | 642 | 1.81 | +2.86 | | | |
Electorate (as at 26 November 2011): 47,387

### 2008 election

2008 general election: Waimakariri :
| Notes: | Notes: | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. |
| Party | Party | Candidate | Candidate | Votes | % | ±% | Party votes | % | ±% |
| | Labour | Y Clayton Cosgrove | Y Clayton Cosgrove | 16,360 | 44.09 | | 12,702 | 33.87 | |
| | National | Kate Wilkinson | Kate Wilkinson | 15,970 | 43.04 | | 18,539 | 49.44 | |
| | ACT | Aaron Keown | Aaron Keown | 1,717 | 4.63 | | 953 | 2.54 | |
| | Green | Alan Liefting | Alan Liefting | 1,253 | 3.38 | | 2,036 | 5.43 | |
| | NZ First | Melanie Mark-Shadbolt | Melanie Mark-Shadbolt | 1,157 | 3.12 | | 1,482 | 3.95 | |
| | Kiwi | Leighton Baker | Leighton Baker | 536 | 1.44 | | 397 | 1.06 | |
| | United Future | Kelleigh Sheffield-Cranstoun | Kelleigh Sheffield-Cranstoun | 114 | 0.31 | | 342 | 0.91 | |
| | Progressive | | | | | | 397 | 1.06 | |
| | Bill and Ben | | | | | | 228 | 0.61 | |
| | Māori Party | | | | | | 140 | 0.37 | |
| | Legalise Cannabis | | | | | | 123 | 0.33 | |
| | Family Party | | | | | | 61 | 0.16 | |
| | Alliance | | | | | | 40 | 0.11 | |
| | Democrats | | | | | | 33 | 0.09 | |
| | Workers Party | | | | | | 9 | 0.02 | |
| | Libertarianz | | | | | | 7 | 0.02 | |
| | Pacific | | | | | | 5 | 0.01 | |
| | RONZ | | | | | | 4 | 0.01 | |
| | RAM | | | | | | 3 | 0.01 | |
| Informal votes | Informal votes | Informal votes | Informal votes | 202 | | | 114 | | |
| Total valid votes | Total valid votes | Total valid votes | Total valid votes | 37,107 | | | 37,501 | | |
| | Labour hold | Labour hold | Majority | 390 | 1.05 | | | | |

### 2005 election

2005 general election: Waimakariri :
| Notes: | Notes: | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. | Blue background denotes the winner of the electorate vote. Pink background denotes a candidate elected from their party list. Yellow background denotes an electorate win by a list member, or other incumbent. A Y or N denotes status of any incumbent, win or lose respectively. |
| Party | Party | Candidate | Candidate | Votes | % | ±% | Party votes | % | ±% |
| | Labour | Y Clayton Cosgrove | Y Clayton Cosgrove | 19,084 | 48.61 | -3.72 | 16,484 | 41.48 | |
| | National | Kate Wilkinson | Kate Wilkinson | 13,478 | 34.33 | +13.38 | 16,565 | 41.68 | |
| | NZ First | Ron Mark | Ron Mark | 4,247 | 10.82 | -5.90 | 2,453 | 6.17 | |
| | Green | Alan Liefting | Alan Liefting | 833 | 2.12 | | 1,527 | 3.84 | |
| | United Future | John Pickering | John Pickering | 651 | 1.66 | | 1,295 | 3.26 | |
| | Progressive | John Wright | John Wright | 458 | 1.66 | | 609 | 1.53 | |
| | Legalise Cannabis | Michael Britnell | Michael Britnell | 289 | 0.74 | | 125 | 0.31 | |
| | ACT | Rebekah Holdaway | Rebekah Holdaway | 196 | 0.50 | | 362 | 0.91 | |
| | Direct Democracy | Jason Orme | Jason Orme | 23 | 0.06 | | 5 | 0.01 | |
| | Destiny | | | | | | 115 | 0.29 | |
| | Māori Party | | | | | | 62 | 0.16 | |
| | Christian Heritage | | | | | | 49 | 0.12 | |
| | Democrats | | | | | | 32 | 0.08 | |
| | Alliance | | | | | | 21 | 0.05 | |
| | Libertarianz | | | | | | 12 | 0.03 | |
| | Family Rights | | | | | | 8 | 0.02 | |
| | One NZ | | | | | | 8 | 0.02 | |
| | 99 MP | | | | | | 7 | 0.02 | |
| | RONZ | | | | | | 5 | 0.01 | |
| Informal votes | Informal votes | Informal votes | Informal votes | 277 | | | 116 | | |
| Total valid votes | Total valid votes | Total valid votes | Total valid votes | 39,258 | | | 39,744 | | |
| | Labour hold | Labour hold | Majority | 5,606 | 14.28 | -17.10 | | | |

### 1999 election

Refer to Candidates in the New Zealand general election 1999 by electorate#Waimakariri for a list of candidates.

## Table footnotes

* ↑ Compared to ONE Party
* ↑ 2017 Internet Party swing is relative to the votes for Internet-Mana in 2014; it shared a party list with Mana Party in the 2014 election
* ↑ 2017 Mana Party swing is relative to the votes for Internet-Mana in 2014; it shared a party list with the Internet Party in the 2014 election