The Ministry of Health announced an additional 18 cases of Covid-19 in the Whanganui District Health Board region on Friday.
The total number of active cases is 91.
More than a third of those cases are in Whanganui district, which has 38 active cases.
Elsewhere across the region, Marton has 31 cases, Bulls has two cases and Waiouru has one case.
Nineteen of the cases are yet to be assigned locations as they were likely tested outside the Whanganui DHB region.