Until Friday, March 9, volunteers will be at SeniorNet learning centres around the country to help people aged over 50 fill out the 2018 Census online.
SeniorNet national spokesman Grant Sidaway said they were running more than 200 workshops nationally to help seniors complete the census.
In Whangarei by 2pm yesterday 40 people had been helped at Whangarei SeniorNet.
Volunteer Jean Hansen said they had also had plenty of inquiries from others finding it hard to fill the forms out online.
"Also a lot of people haven't got their forms with their Census access code yet to fill it out online. Many assume that we have the paper forms for them to fill out but we don't," she said.
From Wednesday reminders would be sent and field teams will start following up with households to support them to complete.
In the Far North, Great Barrier Island, the Ureweras and Whanganui, field teams had already begun visiting and delivering access codes and paper forms, to make sure people in remote parts of New Zealand have everything they need to complete the census over the next few days.
Stats NZ's online system will remain open, and teams will be heading out to visit households who haven't taken part from later next week. It is expected to be following up for several weeks, which is usual for a census.