"Having 240 players and management alone being accommodated in Whangārei would have a significantly greater economic impact than the DHL Lions team of 90 members."
The announcement has been welcomed by local officials and players.
Whangārei deputy mayor and Northland Rugby Union president Sharon Morgan said the announcement is a fantastic outcome for women's rugby which is growing rapidly.
She said the tournament would bring a huge buzz and excitement to the city.
"Economically, the visitor numbers will be fantastic."
With days between games there will be time for people to travel and explore.
"There will be more people staying, more people viewing the tourist attractions."
On top of that, Whangārei will be beamed out to the world.
Northland women's team players immediately thought of the next generation of players in the region when they heard the news.
"You don't really hear of international female teams playing here. It's something for our younger generation to strive for," Kat Wira-Kohu said.
Bronwyn "Horsie" Hames said it would provide inspiration for young girls.
Their coach, former World Cup winning Blackfern Suzy Dawson said even this announcement could spur players on.
"If they're 16 or 17 now, there's no reason they can't be playing in that team."
She thought Northlanders would adopt whichever teams play in Whangārei.
Current Northland Black Fern lock Charmaine Smith said with the momentum of women's rugby in New Zealand increasing it will be great for Kiwis to support the Blackferns on the world stage.
"Whangārei is home for me which makes it even more special. I can't wait for the world to see the beautiful place I grew up.
"The opportunity to represent New Zealand in front of my family and friends who have helped me get to where I am today is one I would cherish."
Mayor Sheryl Mai said it is brilliant for all young women athletes to see their sporting heroes on home turf.
She said the 2011 Rugby World Cup and the FIFA Under 20 World Cup matches hosted in Whangārei proved the city has what it takes to attract and host international events.
Earlier this year the council pledged an unbudgeted $3.382 million, with possibly a further $580,000, if New Zealand's bid to host the tournament was successful.