Compiled by EveryElectionResult.com's data team · Last updated 2026-08-30
East Coast Bays was won by National Party at the 2023 general election, with a margin of 20,353 votes over Labour Party in the electorate vote. This page covers every general election in East Coast Bays from 2002 to 2023.
New Zealand uses Mixed-Member Proportional (MMP) voting: every voter casts two votes each election. The electorate vote below elects this seat's local MP by simple plurality (the same "winner by margin" model this site uses everywhere) — it does not by itself determine how many seats a party holds in Parliament. The separate party vote, shown further down, is what decides each party's overall share of Parliament, and often goes to a different party than the local electorate vote does.
Electorate Vote — Full History, 2002–2023
Election
Winner
Party
Votes
Vote Share
Runner-up
Margin
2002
National Party
National Party
12,134
39.1%
Labour Party (10,600)
1,534 (4.9 pts)
2005
National Party
National Party
17,213
47.0%
Labour Party (9,927)
7,286 (19.9 pts)
2008
National Party
National Party
20,151
58.1%
Labour Party (6,177)
13,974 (40.3 pts)
2011
National Party
National Party
21,094
65.0%
Labour Party (6,453)
14,641 (45.1 pts)
2014
National Party
National Party
19,957
61.9%
Other (5,152)
14,805 (45.9 pts)
2017
National Party
National Party
22,731
66.1%
Labour Party (6,441)
16,290 (47.3 pts)
2020
National Party
National Party
20,466
54.9%
Labour Party (11,702)
8,764 (23.5 pts)
2023
National Party
National Party
27,687
72.5%
Labour Party (7,334)
20,353 (53.3 pts)
Party Vote in East Coast Bays
The party vote is cast on the same ballot but decides Parliament's overall makeup, not this seat's MP. Shown here for the same years as the electorate vote above, so the two can be compared directly.
Election
Party Vote Winner
Votes
Share
Same as electorate vote?
2002
Labour Party
10,722
33.8%
No -- split result
2005
National Party
19,437
52.3%
Yes
2008
National Party
21,681
61.4%
Yes
2011
National Party
21,079
62.9%
Yes
2014
National Party
20,895
63.4%
Yes
2017
National Party
22,006
62.9%
Yes
2020
Labour Party
15,372
40.2%
No -- split result
2023
National Party
22,508
57.8%
Yes
Full Result Breakdown by Election
2002
Party
Votes
Share
National Party
12,134
39.1%
Labour Party
10,600
34.2%
United Future
2,872
9.3%
ACT Party
1,993
6.4%
Green Party
1,688
5.4%
Other
1,243
4.0%
Jim Anderton's Progressive
508
1.6%
2005
Party
Votes
Share
National Party
17,213
47.0%
Labour Party
9,927
27.1%
Other
5,921
16.2%
Green Party
1,287
3.5%
NZ First
942
2.6%
ACT Party
537
1.5%
United Future
405
1.1%
Jim Anderton's Progressive
253
0.7%
Maori Party
119
0.3%
2008
Party
Votes
Share
National Party
20,151
58.1%
Labour Party
6,177
17.8%
Other
4,639
13.4%
Green Party
2,263
6.5%
ACT Party
1,246
3.6%
United Future
215
0.6%
2011
Party
Votes
Share
National Party
21,094
65.0%
Labour Party
6,453
19.9%
Green Party
2,832
8.7%
Other
1,614
5.0%
ACT Party
467
1.4%
2014
Party
Votes
Share
National Party
19,957
61.9%
Other
5,152
16.0%
Labour Party
3,915
12.1%
Green Party
3,206
9.9%
2017
Party
Votes
Share
National Party
22,731
66.1%
Labour Party
6,441
18.7%
Green Party
2,306
6.7%
Other
1,289
3.7%
NZ First
1,254
3.6%
ACT Party
389
1.1%
2020
Party
Votes
Share
National Party
20,466
54.9%
Labour Party
11,702
31.4%
Green Party
2,370
6.4%
ACT Party
1,397
3.7%
Other
1,374
3.7%
2023
Party
Votes
Share
National Party
27,687
72.5%
Labour Party
7,334
19.2%
Other
1,600
4.2%
ACT Party
1,584
4.1%
Margin Over Time
Electorate-vote winning margin (percentage points) at each election, coloured by the winning party.
Trend
East Coast Bays has been contested at 8 general elections on record since 2002. Winning party of the electorate vote over that span: National Party.
Frequently Asked Questions
Who won East Coast Bays in the 2023 general election?
National Party won the East Coast Bays electorate vote in 2023 with 27,687 votes (72.5%), a margin of 20,353 votes over Labour Party in second place.
Did the electorate vote and party vote agree in East Coast Bays in 2023?
Yes -- National Party won both the electorate vote and the party vote in East Coast Bays in 2023.
Which parties have won the East Coast Bays electorate seat since 2002?
Since 2002, East Coast Bays has been won by: National Party.