The cost of the clean-up following the floods in Gloucestershire is estimated to be between £50m and £55m.
More than 500 businesses were affected by the floods
More than 4,000 homes were affected and some residents are not expecting to be able to return until Christmas.
Repairs to schools are expected to cost £2.7m with some 50 schools damaged by the flooding in July.
The figures have emerged after more than 5,000 questionnaires were delivered across the county to assess the scale of the chaos.
The Government has so far pledged £2.5m in assistance.
Of the schools affected, St David's school in Moreton in Marsh was the worst hit, and pupils will be housed in temporary buildings at the start of term while building repair work starts.
The results from the two-thirds of the questionnaires that have been returned, suggest one in six people had to move out of their homes because of the floods.
An unknown number of people did not have buildings or contents insurance.
A spokesperson for the county council said: "We want to praise the positive spirit and continued resilience of residents who have been faced with water shortages, floods and continuing downpours.
"We also want to praise the hard work of staff from all the local councils in helping to get Gloucestershire going again."
About 420 road repair schemes are currently under way, at a cost of £25m.
More than £600,000 has so far been donated by the public to the Gloucestershire Flood Relief Fund.