Cancer Council Queensland has called on the state government to ban smoking in more places, saying it has the support of the population.
The Everyday Health Survey on Tobacco, released on World Cancer Day on Saturday, showed more than half of Queenslanders supported banning people born after 2001 from buying or smoking the drug.
An overwhelming 85 per cent of the 736 people surveyed wanted the legal age of those able to sell tobacco increased to over 18.
Cancer Council Queensland chief executive Professor Jeff Dunn AO said people were more aware than ever about the dangers of smoking.
"Alarmingly, about 200,000 Queensland kids currently live in a household with a smoker," he said.
"This is a scourge we must stamp out and nearly all Queenslanders agree with us."
Prof Dunn said the time had come to talk about a "generational phase-out on smoking".
"This is a time for our government to respond to calls from our Queensland community, to do more to protect our state from the scourge of tobacco," he said.