Population growth is ''causing or exacerbating all of Australia's major problems'', according to a new political party created for the September election.

The Stable Population Party wants immigration numbers limited to cover the number of Australians emigrating every year. It says zero net migration would cut the annual migration tally by 170,000.

William Bourke.

William Bourke, the leader of the party that will field Senate candidates in every state and territory, said the party would also run candidates in ''strategic'' seats, including those held by Population and Communities Minister Tony Burke, and former immigration minister Philip Ruddock.

He said the party had more than 700 members, who came from broad philosophical backgrounds, including former members of the Liberals, Labor and the Greens.