There are 225 scheduled castes persons of which 108 are females and 117 are males. Females constitute 48% and males constitute 52% of the scheduled castes population. Scheduled castes constitute 11.69% of the total population.

Population density of Kuppalnatham is 241.35 persons per square kilometer. Sri vengdajalpathi perumal temple are located in Kuppalnatham. This temple was 700 years old and built by madurai Nayak Kingdom. Kuppalnatham is famous for Chithirai thiruvilla festival was celebrated as madurai by kuppalnatham k Paramanpatti k Andipatti chinnakatlai, Sedapatti, chennampatti etc on near kuppalnathampoigai malai river. Kuppalnatham Poigai malai Jain cave tample was one of important jain temple in madurai district and it was located in traditional trade routes near gounda nathi.