there were 5,275 Catholics and 4,999 Protestants in Adliswil. In the , religion was broken down into several smaller categories. From the 2000 census, 38.6% were some type of Protestant, with 36.2% belonging to the Swiss Reformed Church and 2.4% belonging to other Protestant churches.
there were 5,275 adherents of Catholicism and 4,999 followers of Protestantism in Adliswil. In the , religion was categorized into several smaller subgroups. From the 2000 census, 38.6% belonged to some form of Protestantism, with 36.2% affiliated with the Swiss Reformed Church and 2.4% belonging to other Protestant denominations.