Prime Minister Anthony Albanese has denied the Indigenous Voice referendum is sunk, despite polling finding its chances of success appear doomed.

Three surveys show the anti-Indigenous Voice campaign remains ahead a week out from referendum day, despite one poll indicating a slight late gain in support for the Yes vote in the past month.

Almost half of voters oppose the Voice, 38 per cent are in favour and 13 per cent remain undecided, according to a Resolve poll conducted for the Sydney Morning Herald.

When allowed only a referendum-style ‘yes’ or ‘no’ answer, 56 per cent of respondents opposed the change and 44 per cent were in favour – with the latter up one point since September.

Tasmania was the only state with a majority of Yes voters, the survey found.

A Newspoll indicated that the No side was backed by 58 per cent while the support for Yes was at 34 per cent and 8 per cent were unsure.

The Newspoll of 1225 voters registered a two percentage point dip for Yes and a two-point increase for No since the previous survey two weeks earlier.

In a third poll, quoted by Sky News Australia on Monday, the outlook is even more bleak for the Yes campaign.

Done by British company Focal Data and claiming to use a technique similar to that used by The Australian for the 2022 federal election (which came very close to the seat by seat result at that election), it shows Yes ahead in just 22 of 151 House of Representatives seats.

It predicts the Yes vote will not get up in a single Liberal seat.

Despite the polls showing the apparent strength of the No vote, Prime Minister Anthony Albanese said enshrining the Indigenous advisory body in the constitution would be a moment of national unity.

Albanese said he wouldn’t pre-empt any polls ahead of Australians hitting the ballot box.

“We have five days in which Australians can have a look at what the question is – the constitutional change is very clear,” he told Nine’s Today Show program.

“There will be a body that may give advice on matters affecting Indigenous Australians and the parliament remains supreme.

“For the parliament and government, the decision-making process doesn’t change but you get better outcomes if it’s an informed decision.”

With just days to go until the referendum, Albanese said he would participate in a nationwide blitz campaigning for the Yes vote before the October 14 referendum.

He will hit regional centres such as Broken Hill and Port Lincoln, along with stops at Uluru, Melbourne, Adelaide, Perth, Hobart and Sydney.

“It’s only done when people cast their ballots,” Albanese said.

“We’ll wait and see when they cast their vote, I’m not getting ahead of the Australian people – I know some arrogance has crept into the No side campaign.”

The PM also had support from the Assistant Minister for Indigenous Australians Malarndirri McCarthy, who bluntly rejected the idea the Voice campaign was sunk.

“Not at all, seriously. This is the thing, when you’re out on the streets and when you’re at the polling booths, it is not the response you’re getting,” McCarthy told the Nine Network.

“It’s a different feel on the ground and I’m taking hope from that.”

But Albanese has also said the government will not pursue future attempts at establishing the Voice should the referendum fail to get enough support.

Opposition Leader Peter Dutton started Monday in Tasmania before heading to South Australia, a key swing state in the pathway to the referendum’s success.

“A law passed by the parliament can’t override the constitution and I think that’s why millions of Australians are deciding to vote ‘no’,” he told Tasmanian radio station 7AD.

“If there is a ‘yes’ vote, we’re not going to see the practical outcomes that we all want in Indigenous communities like Alice Springs, we’re going to see another layer of bureaucracy.”

Deputy Liberal leader Sussan Ley said the country would still have negative outcomes either way following the referendum.

“It’s a lose-lose whatever the result is on Saturday,” she told Sky News.

“It will be bad, divisive and unhappy for Australians the next day, so we do need to bring the country together.

“It is just so important that the day after we come together as a country.”

Ley said she would not be happy if the No campaign won the referendum, despite saying she would vote ‘no’.

More than 2.2 million people have already cast their ballot. A further 1.9 million have applied for a postal vote.

– with AAP