Ever thought that young people are disengaged from politics, and couldn't care less about what happens at the federal election? You've probably written off millennials too soon.

Almost 70 per cent of 18-29 year-olds in Australia say they're interested in federal politics and the upcoming election, according to triple j's What's Up In Your World survey.

The research also found that the vast majority of young Australians — 89 per cent — have no faith that politicians are working in the best interests of the planet, and rate environmental policy and climate change as the most important issues to them at next month's election.

The survey was completed last month by 14,000 Australians aged 18-29 and found young people's interest in federal politics remains strong, while their dissatisfaction with politicians and has grown since the 2016 federal election.

85 per cent of respondents don't believe that politicians are working in the best interests of young people. This has grown from 80 per cent of respondents in triple j's 2016 survey.

Meanwhile, 79 per cent of respondents don't believe that politicians are working in the best interests of Australia. This has grown from 63 per cent of respondents in 2016.

51 per cent of respondents were yet to decide who they will vote for on May 18 when they completed the survey in March.

The churn of Prime Ministers - five in six years - has had a marked effect on young people, as 59 per cent of respondents believe that whoever is elected Prime Minister on May 18 won't survive their full term, anyway.

Take a look at the findings of triple j's What's Up In Your World survey below. Other findings of the survey related to work, relationships, drugs and alcohol, money, and technology will be released later in 2019.