Incumbent Toowoomba Regional Council Mayor Paul Antonio has taken a commanding lead in the mayoral race.
With just shy of 22 per cent of the unofficial preliminary count conducted, Cr Antonio has received 70.87pc of the vote.
His closest competitor is Chris Meibusch with 19.64pc, while Douglas Doelle is on 9.49pc.
This will be Cr Antonio's third term as mayor and he has more than three decades of experience in local government.
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Meanwhile, 13pc of the unofficial preliminary count has been conducted in the Southern Downs.
Cr Vic Pennisi is leading so far with 42.59pc, while sitting mayor Tracy Dobie has attracted 33.61pc of the vote.
The two other contenders Joe Doepel and Peter Kemp are on 6.25pc and 17.56pc, respectively.
Across the shire boundary in the Scenic Rim, 19.79pc of the preliminary vote has been counted.
Sitting mayor Greg Christensen has pulled ahead in the race with 35.77pc, while former mayor John Brent has attracted 25.81pc of the votes so far.
The three other contenders are Virginia Price on 11.25pc, Chris Summers, 6.84pc, and Tom Sharp, 20.33pc.
At 9pm on Saturday night, the Electoral Commission of Queensland had not published results for the Western Downs Regional Council.
It is a two-horse race in the region, with Mayor Paul McVeigh up against Glenn Strandquist.