The six new cases follow four cases being found in the Wellington region since the New Year – two were linked to the Hidden Valley Festival in Matakana, one to a drum and bass festival in Tauranga and the fourth to the Britomart Block Party on New Year's Eve in Auckland.
There were no new cases in Wellington on Thursday.
The Wellington region has a high vaccination rate with 95 per cent of Capital and Coast District Health Board fully vaccinated against Covid-19.
It is also expected to be the first DHB to reach 90 per cent fully vaccinated for Maori people – when clinics closed for the day yesterday they were just 32 doses off the mark.
It's expected this milestone will be reached later on Thursday.