Council tax in Pembrokeshire has gone up by more than 75 per cent in the last ten years.
Band D properties in the county have seen a 76 per cent hike from £451 in 1997/98 to £796 in 2007/8.
Across Wales, average bills have doubled over the same period, posing the question from the Welsh Conservatives: "Council Tax has doubled under Labour. Where has all your money gone?"
"Pembrokeshire does have the lowest council tax rate in Wales, but it also has some of the lowest paid workers as well," said Welsh Conservative council candidate for Wiston David Howlett.
He is one of the 30 Welsh Conservative candidates standing in next month's council elections in Pembrokeshire – the most the party has ever fielded.
Paul Davies, Welsh Conservative Assembly Member for Preseli Pembrokeshire, said: "We are committed to getting council tax back to sustainable levels and restoring confidence in the system by making sure money raised locally is spent locally and assisting those on fixed incomes.
"For too long we have had a bad deal from the Assembly Government with ever-increasing financial burdens put on to local councils. We need a strong voice at County Hall to ensure that the voice of the people of Pembrokeshire is listened to."