Young voter enrolment was at an all time high in the Federal election but despite a suite of policies aimed at under 30s from Labor, younger electorates saw the Liberals and minor parties swing voters their way.

Data analysed by Hack identifed more than 20 marginal seats where young voters could make an impact. This is what happened in those electorates.

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Whatsapp These are the top ten seats with the highest percentage of voters aged 18 to 29.

Queensland's young electorates saw swings towards One Nation

The seat of Herbert in Townsville has one of the highest proportions of young voters in the country and was won by Labor by just 37 votes in the 2016 election. This time though, the seat - where approval of the Adani coal mine was a key issue - was comfortably won by the Liberal party with a swing of 7.6 per cent.

A swing is the percentage of people who changed their vote from the last election.

The Queensland seats of Forde in Brisbane's suburbs, Capricornia in Rockhampton, and Home Affairs Minister Peter Dutton's seat of Dickson saw big swings towards One Nation which helped the Liberals retain those seats.

Analysts have since argued that voters in the Sunshine State voted this way because they wanted job security and couldn't swallow Labor's environmental agenda and its indecisiveness on Adani.

Labor's Emma Husar stepped down from the Western Sydney seat of Lindsay after a scandal involving staff complaints. The new Labor candidate subsequently lost that electorate to the Liberals - 23 per cent of voters there are under 30.

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In conservative WA, Labor thought it had a chance to take some seats from the Coalition.

It set its sights on the young electorate of Pearce, held by Attorney General Christian Porter, but he managed to win easily, increasing his margin by 3.2 per cent. Although the Liberals also held onto the Perth seat of Swan, Labor did manage to swing 1.9 per cent of voters its way.

Climate change policy helped Labor make gains in Melbourne

Climate change and the environment have come up, in several surveys, as one of the most important policy areas for young voters.

Labor announced a larger reduction target than the Government and other measures to combat climate change like investing in renewable energy and an energy guarantee. The Greens' policy was even more ambitious.

Analysts now argue these policies have backfired in Queensland, which preferred the Coalition's stance to maintain a strong economy.

But in Melbourne - where most electorates had a higher than average percentage of young voters - there were swings towards Labor and the Greens. In the electorate of Melbourne where a quarter of voters were under 30, Adam Bandt won the Greens' only seat and increased the party's margin to 23 per cent of the vote.

The Melbourne seats of Dunkley, Macnamarra, and Cooper have also seen swings towards Labor.

Housing policy reflected a generational divide

Housing was also an important election issue for young people, according to triple j's research, and analysts have said policy in this area played a part in the election result.

Bill Shorten used his Budget reply speech to promise to "stop the bias against young people" with changes to negative gearing which Labor said would help increase housing affordability for young people

But some within the party have said it was too far to the left for WA voters to stomach and turned off older voters with investment properties.

"We scared the s**t out of them this time around," one Labor figure told the ABC.

Note: 76 per cent of the vote had been counted when this article was written. For up to date results, click here.