Adrian Schrinner has retained his position as Brisbane's lord mayor, with challenger Patrick Condren conceding defeat.
Mr Condren said on social media he had spoken with Mr Schrinner, congratulating him on winning the election.
Gold Coast incumbent Tom Tate has claimed victory, while Teresa Harding looks set to win Ipswich.
Darren Power looks likely to become Logan's next mayor.
Brisbane City Council Lord Mayor Adrian Schrinner (right) and his representative for Deagon, Kimberley Washington. Source: AAP
In the state by-elections, Labor looks set to retain Bundamba while Laura Gerber is on track to hold Currumbin for the Liberal National Party.
The Electoral Commission says the official count process can take up to two weeks, with about 570,000 people voting by mail because of the COVID-19 pandemic.
Meanwhile, Queensland's premier has slammed the state's electoral commission after technical issues hampered the start of the counting process in Saturday's election.
Premier Annastacia Palaszczuk said on Sunday she is "pretty disappointed" as the commission's one job is to make sure they could run an election.
"I'll be ordering a review ... as to why it happened," she said on Sunday.
Queenslanders voted on Saturday in 77 local government polls and by-elections in the state seats of Currumbin on the Gold Coast and Bundamba at Ipswich.
The commission said a technical issue with the data feed from polling booths delayed the publication of the preliminary results after the close of polling on election day.
"This did not affect the count process itself or the recording of results from over 1000 polling booths around the state," the Electoral Commission of Queensland said in a statement.
The results were up to date on the ECQ's website by 11.45pm on Saturday.
State LNP leader Deb Frecklington said anyone who did not vote should not be fined because of the concerns over coronavirus infection.
She also called on the ECQ to prepare for October's state election to be conducted using a full postal vote.
