Support for legalising adult use of cannabis has hit a record high of 68 per cent according to a poll.

The Gallup polls come in the same week when the conservative state of Ohio voted to become the 24th US state to legalise cannabis for adult use.

Legalise Cannabis NSW MP Jeremy Buckingham predicted that it was only a matter of time before the overwhelming support for drug law reform in the United States was replicated in Australia.

“What’s compelling is about both these results is the depth of support for legalisation among conservative and older voters as well as younger and progressive voters,” he said.

“This replicates our experience in the NSW election where some of our highest votes came in regional, working-class areas such as Sydney’s western suburbs, the Hunter Valley and the Northern Rivers.

“What these results tell us is that legalisation is a smart political strategy as well as having obvious economic, health and legal benefits.

“I will be bringing our Bill to legalise the growing of cannabis plants and sharing the harvest at the final sitting of NSW Parliament in a couple of weeks.

“I call on both the Government and the Opposition to support us and call an end to this outdated, unjust and unpopular prohibition.”

The Gallup poll can be found here.

The main findings are:

• 70 per cent of US adults favour legalisation, up from 68 per cent in recent years.
• In 1968, support was 12 per cent.
• A majority support persists across all major demographic and political groups.
• Support is the same in state where cannabis is legal versus where it is not.
• Support for legalisation first cracked the 50 per cent threshold in 2013.
• Almost 80 per cent of adults under 34 supported legalisations,
• Even those aged over 55 reported 64 per cent in favour.