This was the second-lowest toll on record, but already this year there have been 55 preventable fatalities.
Bay of Plenty has the fourth highest regional drowning rate in New Zealand and the number has been increasing over the past 10 years.
Drowning is the leading cause of recreational death and the third highest cause of accidental death in New Zealand.
Bay of Plenty had the second-highest preventable drowning toll of 10 behind Auckland with 14 in 2018.
A Water Safety NZ spokesman said the best way to tackle New Zealand's drowning problem was through investment in grassroots education with young people.
The programmes gave children the knowledge and skills they need to stay safe in, on and around the water, he said.
WSNZ was also funding Te Waiariki Purea Trust to provide a water safety skills
programme for 120 children in years 1 to 8 in schools that were remote or close to potentially hazardous waterways.
These included Murupara, Maketū, kura around the lakes, Sunset, Awhina and Kokiri.
WSNZ chief executive Jonty Mills said a new approach was needed to tackle the over-representation of Māori in the drowning statistics.
"We need to improve water safety outcomes for Māori and there was a real need for culturally appropriate interventions created and delivered by Māori for Māori."
WSNZ was funding Bay of Plenty Water Safety Community Day on October 20.