Northland has high rates of smoking among pregnant women and Maori despite fewer people in general smoking.
Northland people phoned Quitline 300 times between January 1 and early March and accessed the website 42 times.
Jan Marshall, Northland District Health Board Smokefree hospital facilitator, said the region's smoking rates fell from 25.7 per cent in 2006 to 19 per cent in 2013. However, Maori smoking rates were still high, at 33.9 per cent.
"Smokers and their families are still suffering unnecessarily from the harmful effects." Another problem in Northland was the number of women smoking during pregnancy.
Smoking while pregnant lowers the oxygen available to the mother and baby while it could increase a baby's heart rate, the chance of miscarriage, stillbirth, prematurity and low birth weight.