Findings were produced by analysis from the Pew Research Center

Comes despite continual increases in wages and overall employment

One in three young adults is still living at home with their parents, despite years of economic recovery which have seen more of them bag jobs and bigger pay packets.

Some 20.4million adults aged 18-34 are staying with parents or other relatives - a new high which has kept rising despite young people being richer than they have in years.

The figures, based on U.S. Census Bureau data, show that having more money hasn't made so-called Millenials more likely to set up their own household.

Failure to launch: The research showed that a third of young adults now don't live independently of their family - a figure which has stubbornly increased even as young people become richer

Staying put: Even though there are millions more young people now than in 2007, there are slightly fewer of them living independently

Even though the number of people in the 18-34 age bracket has gone up by around 3million since recession started to bite in 2007, half a million fewer of them are now living independently.

In 2010, the U.S. economy's lowest ebb, 69 per cent of young adults lived apart from their families, but five years on the proportion has fallen to 67 per cent - leaving a full third still in the family nest.

The findings, published by the Pew Research Center, come as youth unemployment fell from 12.4 per cent in 2010 to 7.7 per cent now, while average weekly earnings have increased to $574, from a low of $547 in 2012.

The figures do not include students who are enrolled full-time.

Although it remains true that better-educated young adults are more likely to branch out on their own, both those with and without degrees have become less likely to be independent householders.

It's not the economy, stupid: Even though wages are up and more young people have jobs than five years ago, they are more reluctant to set up house

Likewise, while men remain more likely than women to live independently - 63 per cent versus 72 per cent - both genders took a roughly equal hit over the past five years.

It is not clear what is driving the change, as the economic factors which could have prompted the slowdown in 2007 have largely been reversed now - with no change in behavior.

Recent research from the UK - which is experiencing a similar rise in adults living with their parents - suggested that some simply prefer an easier life with mom and dad.

A sixth of those still at home admitted they lived a cushy existence - as 84 per cent of their parents said they still did the laundry for them.