Labour is calling on Devon County Council to end its 'zero hours' contracts for staff and force contractors to follow suit.
The Conservative authority says it has 179 workers out of 6,000 staff employed on the controversial terms, which leave them with no guaranteed hours each week and subject to last-minute changes in working patterns.
Labour leader Ed Miliband has already called for a ban on the "exploitative" contracts and pledged to end them in Government.
It was thought that 250,000 workers were on the contracts but the Office for National Statistics now admits the figures could be much higher, with some estimates putting the true number as high as one million.
County councillor and leader of the local Labour group Richard Westlake has tabled a motion at the full council meeting today demanding the end of all zero hours arrangements.
He also wants the council to "notify any providers of commissioned services that it does not approve of such contracts and work with them to end their use as soon as possible".
The council said many chose the contracts because of they offer flexibility and better job protection than casual contracts.
"They work in areas that are subject to fluctuations in demand on a daily basis and which require a flexible number of staff," a spokesman added.
"Workers on variable hour contracts can apply for council jobs under different contracting arrangements if they wish. If we stop using variable hours contracts, then it will cost council taxpayers more."