Source: DIA 2025 local authority election statistics
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About the NZ Local Election Data Explorer
This dashboard explores DIA local authority election statistics by election year. Included is all current local-authority layers, Māori ward polls, some Licensing Trust election statistics. Also included are District Health Boards, but these were discontinued from the 2022 elections onwards.
How to use
Choose a year, election type and metric. Then select an area from the search or records list, or click the map on desktop.
Glossary
- Turnout
- Number of voters divided by the number of electors on the roll in contested areas.
- Blank votes
- Blank votes cast divided by total voters.
- Informal votes
- Informal votes cast divided by total voters.
- Special votes cast
- The number of voters who cast a special vote.
- Special votes allowed %
- Allowed special votes, residential and ratepayer, divided by total special votes cast.
- Special votes disallowed %
- Special votes cast minus special votes allowed, divided by total special votes cast.
- Candidates per vacancy
- Candidates divided by positions.
- Uncontested
- An election in which the number of candidates did not exceed the positions available.
- No statistics
- No usable value is available for the selected metric. This is shown separately from an uncontested election and from an area outside the selected layer or filter.
Contact
By: Ben Roser, Independent Election Services Ltd. For more information, contact info@electionservices.co.nz.