Local Government is an important part of the democratic framework of Australia. The community elect their council representatives every four years, with the next Council Election to be held in November 2026.
Supplementary Election 2025
Adelaide Hills Council is holding a Supplementary Election in 2025 to fill two Valleys Ward and one Ranges Ward Councillor vacancies.
A supplementary election in local government is held to fill a vacancy that occurs between regular election cycles. These elections ensure that the council remains fully represented and can continue to function effectively.
The Electoral Commissioner oversees supplementary elections in South Australia, ensuring they are conducted fairly and transparently.
Key dates:
| Event | Date |
| Close of electoral rolls | 5:00pm, Monday 30 June 2025 |
| Nominations open | Thursday 24 July 2025 |
| Nominations close | 12 noon, Thursday 7 August 2025 |
| Mailout of materials | Tuesday 26 August to Monday 1 September 2025 |
| Close of voting | 12 noon, Monday 22 September 2025 |
| Scrutiny and count | Tuesday 23 September 2025 |
| Election results | To be confirmed |
Voter Information
All voting in council elections is by postal ballot.
Enrolled voters will receive a voting package directly through the mail including ballot paper and a reply-paid envelope.
Ballot papers will be delivered to the enrolled address from Tuesday 26 August until Monday 1 September 2025.
Your ballot papers must be completed and received by the Electoral Commission of SA by 12:00 pm, Monday 22 September 2025.
Candidate information
The upcoming Supplementary Council Election is your opportunity to shape the future of your neighbourhood and council area. By learning about the candidates, you can choose the people who best represent your interests and priorities.
Which ward am I in?
More information
For more information about council elections, please visit the Electoral Commission website.