▁per ▁cent ▁of ▁the ▁population ▁( comp ared ▁with ▁ 7 2 ▁per ▁cent ▁for ▁the ▁UK ▁as ▁a ▁whole ). ▁Of ▁other ▁relig ions ▁Islam ▁was ▁at ▁ 0 . 8 ▁per ▁cent , ▁Buddh ism , ▁S ikh ism , ▁J uda ism ▁and ▁H indu ism ▁were ▁all ▁at ▁around ▁ 0 . 1 ▁per ▁cent . ▁Other ▁relig ions ▁together ▁account ed ▁for ▁ 0 . 6 ▁per ▁cent ▁of ▁respond ents ▁and ▁ 5 . 5 ▁per ▁cent ▁did ▁not ▁state ▁a ▁religion . ▁There ▁were ▁ 2 7 . 5 ▁per ▁cent ▁who ▁stated ▁that ▁they ▁had ▁no ▁religion ▁( which ▁comp ares ▁with ▁ 1 5 . 5 ▁per ▁cent ▁in ▁the ▁UK ▁overall ). ▁Other ▁more ▁recent ▁studies ▁suggest ▁that ▁those ▁not ▁ident ifying ▁with ▁a ▁den om ination , ▁or ▁who ▁see ▁themselves ▁as ▁non - rel ig ious , ▁may ▁be ▁much ▁higher ▁at ▁between ▁ 4 2 ▁and ▁ 5 6 ▁per ▁cent , ▁depending ▁on ▁the ▁form ▁of ▁question ▁asked . ▁ ▁Wales ▁ ▁Early ▁history ▁ ▁Wel sh ▁Re formation ▁Bishop ▁Richard ▁Dav ies ▁and ▁diss ident ▁Protest ant ▁cler ic ▁John ▁Pen ry ▁introduced ▁Cal vin ist ▁the ology ▁to ▁Wales . ▁They ▁used ▁the ▁model ▁of ▁the ▁Syn od ▁of ▁Dort ▁of ▁ 1 6 1 8 - 1 6 1 9 . ▁Cal vin ism ▁developed ▁through ▁the ▁Pur itan ▁period , ▁following ▁the ▁rest oration ▁of ▁the ▁mon archy ▁under ▁Charles ▁II , ▁and ▁within ▁Wales