The number of young people facing long-term unemployment has tripled since the global financial crisis, according to a new analysis of Australian Bureau of Statistics data.

There are currently 257,000 unemployed young people (aged 15 to 24) across the nation, and more than 50,000 have been unemployed for longer than a year.

New report: 275,000 young people across the nation are said to be unemployed.

In NSW, there are 74,000 unemployed young people, and 14,200 of those have not worked in 12 months, according to a report by the Brotherhood of St Laurence, to be released on Monday.

The average duration of unemployment has risen sharply. In 2008, young people spent an average of 16 weeks looking for work, but by this year, that period had risen to 29 weeks.