[2] Mallappally is the original home of many non-resident Indians, and has one of the lowest population growth and highest literacy rates in India.

[citation needed] As per the 2011 Indian census, Mallapally has a population of 17,603.

Children below 6 years of age constitute 7.25% of the total population.

[3] Mallappally is the birthplace of many Christian bishops of Kerala, including St.Dionysius of Vattasseril, Metropolitan Archbishop Valakuzhy Joseph Severios , Cardinal Baselios Cleemis, and Rt.

[4][5][6] Pathicadu St. Peters and St. Pauls Orthodox Church, built in AD 1888, is located 1 km from the town center.