New Zealand Winegrowers says there are now nearly 1850 vineyards in the country, which have a combined area of more than 34,000 hectares in grape production.
The statistics form part of the organisation's first vineyard register report, designed to provide the most accurate and up-to-date information about grape plantings and production.
Sustainability manager Philip Manson says the register is compulsory for growers and replaces the annual vineyard survey which was voluntary.
Mr Manson says the register shows that Marlborough continues to be the largest producing region with two-thirds of the grape production.
Hawke's Bay takes second place, but for the first time the Otago region has edged out Gisborne as the third largest producing area of grape vines.