Electoral Boundaries

An electoral district is an area of a given size and population that is represented by a seat in the House of Assembly.

The number of electors in each electoral district grows at different rates due to differences in population and housing growth. This means boundaries need to be redistributed or redrawn from time to time so all districts have a similar number of electors. The Electoral Districts Boundaries Commission External link is appointed under the Constitution Act 1934 External link  to consider the boundaries after every election.

The Electoral Commission SA is responsible for implementing the boundary changes. These changes include:

  • adjusting the electoral roll to reflect the new boundaries
  • updating records
  • preparing maps and materials.

The Electoral Commission SA writes to all electors before each State election to advise them of the election and the electoral district they are enrolled in.

For maps and profiles of the current boundaries visit State electoral boundaries.