Toowoomba city council origins date back to 24th November 1860, when Toowoomba was declared a municipality. This was quickly followed by the first council election on the 4th January 1861.
William Henry Groom became the first mayor of Toowoomba, after which the Australian electoral division of Groom is named after him.
Toowoomba's status of town transitioned to a city at midday on the 20th October 1904.
Toowoomba celebrated its centenary as a city in 2004.