The proportion is even higher in Auckland, where 86 per cent of schools are handling cases.
Primary schools are the worst hit, with 646 across the country dealing with Covid-19 cases, compared with 173 secondary schools and 57 intermediate schools.
Just over 470 early learning centres have also been hit by Covid-19.
"Schools/kura and early learning services (ELS) have layers of preventative measures in place to protect teachers/support staff, students and children. Public health advice has remained consistent throughout the Covid-19 response that school/kura environments are a lower risk for transmission of Covid-19.
"We know that the more layers of protection in place (eg, good hygiene practices, handwashing, ventilation, cleaning and disinfecting high touch areas regularly etc.), the harder it is for the virus to be transmitted", Sean Teddy, Hautū of Operations and Integration/Te Pae Aronui at the Ministry of Education said.
Meanwhile, Hawke's Bay had 680 new cases of Covid 19 and 23 people in hospital on Monday.
The Ministry of Health announced 15,540 new cases nationwide, with 952 people in hospital.
There have been two new Covid-related deaths, the total number of publically reported Covid-related deaths to date has been 115.
In Hawke's Bay 97.4 per cent of the eligible population have got their first dose of the vaccine, 95.6 per cent of the eligible population have got the second dose and 72.8 per cent of the eligible population have got their booster.
The rolling seven-day average for new cases nationwide has dropped slightly from the peak.
There were 34,045 RAT test results reported nationwide in the last 24 hours and 1762 PCR tests done in the last 24 hours.
