The Liberal Party's chances of winning the 2018 South Australian election have greatly improved after a boundary redistribution notionally handed the party two additional seats.

SA's Electoral Districts Boundaries Commission today released its final report into redistributed electoral boundaries, which happens after every state election.

The marginal Labor seats of Colton and Newland have been redistributed to favour the Liberals on paper, joining Elder and Mawson that had shifted in an earlier draft redistribution.

The Liberal Party won the two-party preferred vote at the 2014 election, but did not win in enough electorates to win a majority of 24 seats required.

Electorate name changes: Mitchell has become Black

Mitchell has become Black Little Para has become Elizabeth

Little Para has become Elizabeth Bright has become Gibson

Bright has become Gibson Fisher has become Hurtle Vale

Fisher has become Hurtle Vale Napier has become King

Napier has become King Goyder has become Narungga

Goyder has become Narungga Ashford has become Badcoe

Instead, Labor retained Government after winning 23 seats and striking a deal with independent Frome MP Geoff Brock.

It later managed an extraordinary electoral coup by recruiting former Liberal leader Martin Hamilton-Smith to join Cabinet.

If the 2014 election results were replicated under the new boundaries, the Liberal Party would have won 25 seats compared to Labor's 20, or potentially 27 seats if it could extract the independents as well, or win their seats.

Some 398,710 voters have been affected by the redistributed boundaries, a massive increase on the 89,000 affected by the last redistribution in 2012.

The changes mean Labor would need to secure a 3.2 per cent swing to stay in Government at the 2018 election, if Mr Brock and Mr Hamilton-Smith choose to side with the Liberals.

Mr Hamilton-Smith said he would contest the next election as an independent liberal conservative and, if he wins, would choose which major party to back based on their stability and whether they had the "the most exciting and promising set of policies".

He said boundary redistribution had "consistently failed over every election" that had taken place while he was parliament.

"It's mission impossible, trying to play around with boundaries to contrive an outcome," Mr Hamilton-Smith said.

"It'd be surprised if it worked this time."

He said the changes had meant a lot of people had been "unceremoniously moved from one electorate to another".

"They'll have to get to know a new MP," Mr Hamilton-Smith said.

"There's a lot of disengagement from politics at the moment and I think these sorts of changes don't help."

Draft decision to move Walkerville withdrawn

The EDBC reversed draft decisions to remove the suburb of Walkerville from the electorate of Adelaide.

Liberal MP Rachel Sanderson strongly opposed plans to move Walkerville into an inner-north electorate. ( ABC News: Ben Pettitt )

It had been swamped with complaints from residents after Adelaide MP Rachel Sanderson petitioned them in the wake of a draft report.

Some submissions included residential concerns that the electorate shift would affect the value of their homes.

A decision to remove a narrow tract of land beside the railway in Prospect from the electorate of Adelaide to Croydon was also reversed.

The commission also abandoned major boundary changes in the Adelaide Hills, which would have seen several towns, including Stirling and Mount Barker, redistributed from the electorate of Liberal MP Isobel Redmond.

Elections 'look after themselves'

Premier Jay Weatherill said: "If you deliver on the things that South Australians are concerned about, elections look after themselves".

Labor MP for Newland Tom Kenyon said his seat would remain marginal despite having become a Liberal seat on paper.

"I think if it was winnable then [in 2014] it's winnable now, and I'll be doing everything to achieve that win," he said.

SA Liberal Party president Steve Murray said the EDBC had taken a "transparent and professional" approach to the process.

"On initial review, it appears the commission has produced a fairer outcome for all South Australian voters and the [Liberal] party will now review the report and issue further comment in due course," he said.

The redistribution is unable to predict the effect of Nick Xenophon Team candidates, however, who will be running in several state seats for the first time in 2018.

Boundary changes aim to make election results fair

The post-election redistribution is enshrined in SA's constitution.

It requires the boundaries to be redrawn to counter malapportionment.

It aims for a fair electoral system so that the party which receives more than 50 per cent of the two-party preferred vote should be elected with enough seats to form Government.

The Liberal Party, however, have lost the past two elections despite winning the two-party preferred vote, because they have not won the marginal seats required.

The ECBC has also changed a number of electorate names.