Out of the 99 polling booths across the electorate, including pre-poll, the Education Minister only lost at 11 locations on a two-party preferred basis and many of these were closely to Ballarat in the sprawling seat.

Haddon, Ross Creek and Linton are just some of the locations just outside Ballarat that stayed firmly Labor in prefernce although their sitting member based in Warrnambool never looked under threat.

Teehan lost to Labor candidate Maurice Billi at Ararat, Dereel, Haddon, Halls Gap, Linton, Napoleons, Portland Central, Portland North Central, Ross Creek, Smythesdale and Snake Valley.

Mr Tehan won easily at the larger polling centres including Temperance Hall in Warrnambool, Our Lady Help of Christians Primary School, Brauer College, Camperdown, Hamilton and Koroit.

The inclusion of Colac to the electorate helped Mr Tehan secure a 10 per cent margin.

Across the pre-polling booth and the two Colac polling centres on election day he received nearly 5000 first preference votes out of 8942.

Colac was redistributed from the Corangamite electorate ahead of the election.

More than 18,000 people voted early in Warrnambool at the pre-polling centre, with Mr Tehan securing an overwhelming victory.

He secured 9134 first preference votes (52.31 per cent) compared to Mr Billi who received 4119 (23.59 per cent).

Independent candidate Alex Dyson secured more than 10 per cent of the vote overall, and managed 13 per cent at pre-poll in Warrnambool. Corangamite, Victoria's most marginal seat, was too close to call on election night.

Liberal incumbent Sarah Henderson was trailing behind her Labor challenger but refused to concede.

Ms Henderson acknowledged she was behind Labor's Libby Croker, saying there were still 14,500 postal votes to be counted.