The boundaries for parliamentary elections are redrawn after each five-yearly population census and the Māori Electoral Option.
Boundary reviews are carried out by the Representation Commission which is an independent body. Its job is to make sure each electorate has about the same number of people in it, so that all New Zealanders have equal representation in Parliament. It also makes sure electorate names are still relevant.
The next boundary review is scheduled to take place in 2019/2020 to fix new boundaries for the 2020 and 2023 General Elections.
The following pages have more information on:
- the number of electorates
- the role of the Representation Commission, and
- what happens in the boundary review.
The Representation Commission is not responsible for local council boundary reviews. These are conducted by the Local Government Commission.