Organiser Ben Stuart said it was a way of giving back to the community and thanking the rescue helicopter service for helping to save lives, which included several people from the church congregation.
"The more central the landing spot, the higher the chance of saving lives," he said.
"Better accessibility means they can get people to main hospitals faster and increase chances of survival, especially in cases of a stroke or heart attack."
The helipad in Mangonui, which is being built on land owned by the Far North District Council, will be used all year around but will be especially helpful during peak summer holiday season.
There are also helipads planned for Maungaturoto and Kaiwaka.
The team at Northland Rescue Helicopter had identified other areas in the region which would benefit from all-weather landing pads, including Kaihu, Kohukohu in the Hokianga, and remote Te Hapua on the Parengarenga Harbour at the top of the North Island.
Alongside the community pads, the Northland DHB has funded hospital landing areas in Whangarei, Dargaville, Rawene, Kaitaia, Kaeo and the Bay of Islands.
This year has been the busiest year on record for the Northland Rescue Helicopter, responding to 705 requests and on track to be well over last year's 863 flights.