Catholic Christianity is the dominant religion in Mexico, representing about 90% of the total population.In recent decades the number of Catholics has been declining, due to the growth of other Christian denominations – especially various Protestant churches and Mormonism – which now constitute 5% of the population, and non-Christian religions 5%. Conversion to non-Catholic denominations has been considerably slower than in Central America, and central Mexico remains one of the most Catholic areas in the world.