Cantonale elections to renew canton general councillors were held in France on 10 and 17 March 1985. The left, in power since 1981, lost 10 departments. As a result, the right controlled 69 out of 95 departments.
Electoral system
The cantonales elections use the same system as the regional or legislative elections. There is a 10% threshold (10% of registered voters) needed to proceed to the second round.