Out of the 18 local areas, six of them are in Kent; Ashford, Dover, Folkstone and Hythe, Maidstone, Medway and Tonbridge and Malling.
The Leader of Kent County Council, Roger Gough, says the blanket Tier 3 restrictions for the county was the 'wrong decision'.
Kent and Medway will move into the highest Covid tier when lockdown ends in England on December 2, following a spike in coronavirus infections.