Choose a year and election type, then select a metric to compare areas.
Turnout: voters as a percentage of enrolled electors.
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About the NZ Local Election Data Explorer
This dashboard explores DIA local authority election statistics by election year. The 2025 view includes all current layers. The 2022 view includes territorial authorities, mayors, Māori wards, boards, subdivisions, regional councils and constituencies.
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
- Number of voters who cast special votes. In the dashboard this is shown as a count.
- 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 / no stats
- An uncontested issue or where turnout-style statistics are not available for that mapped area.
For more information, please contact Independent Election Services Ltd at info@electionservices.co.nz