Những người tự xưng là không theo tôn giáo đã tăng từ 1,1% năm 1951 lên 40,9% năm 2010; với tốc độ thay đổi hiện tại, Cơ đốc giáo sẽ không còn là tôn giáo đa số trước năm 2020. Số người tham dự nhà thờ cũng đang giảm. Khoảng 14% tham dự hàng tuần; 40% của Kiwis đã tham dự nhà thờ trong quá khứ nhưng không còn làm như vậy nữa.
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