Christianity is losing out to other religions in the battle for believers.
That's the finding of a Massey University study that's found that with the exception of Catholicism, membership of all mainstream Christian denominations has fallen to historic lows.
The Anglican Church, which has traditionally been New Zealand's dominant religion, only has 10.8 percent nationally who identify with it, according to the 2006 Census.
In Auckland, the Anglican Church had the highest concentration of believers in wealthier suburbs like Remuera and Herne Bay.
Study author Associate Professor Peter Lineham, says this shows the church is failing to connect in areas with a high concentration of ethnic minorities.
The study found surges in growth for Hinduism, Buddhism and Islam.