Figures revealed under the Freedom of Information Act showed the authority had to clear up 64, 437 incidents of illegally dumped litter between April 2013 and March 2018. This cost the authority more than £3.1 million.
The 50-year-old Gleadless Valley woman said: "There are not enough of them. There are often huge queues and people cant be bothered waiting, turn around and end up dumping their litter in woodland and other places.
"I think there is also a problem with builders dumping litter so they don't pay to pay the fees of a proper licence to use household waste recycling centres.
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"Fly-tipping is awful and our group has launched because people can't stand the sight of litter. More needs to be done to tackle this."
Sheffield Council has now warned those caught fly-tipping will face the full force of the law - which could mean a maximum fine of £50, 000 and up to five years in prison.
A spokesperson for the authority said: "We will take firm action against those who spoil our city for the vast majority of people who recycle their waste appropriately.”
In the last five years the council has prosecuted 74 people for waste offences, including 41 for fly-tipping.