There is no official religion in Mexico. The Mexican constitution guarantees separation of church and state. The dominant Religion is [[Roman Catholic]]ism, (90% Roman Catholic, 6% Protestant, 4% other); However evangelical churches have dramatically expanded their membership in the last decade. | There is no official religion in Mexico. The Mexican constitution guarantees separation of church and state. The dominant Religion is [[Roman Catholic]]ism, (90% Roman Catholic, 6% Protestant, 4% other); However evangelical churches have dramatically expanded their membership in the last decade. |