According to the 2001 India census report, the population of Ezhudesam was 18,652 inhabitants. Males and females constitute an equal proportion of the population. In Ezhudesam, 10% of the population is less than six years of age. Ezhudesam has an average literacy rate of 80%, which is higher than the national average literacy rate of 59.5%. The male literacy rate is 83% and the female literacy rate is 77%.
The nearby tourist spots are Kuzhithurai Amman Temple, Adhikesava Perumal Temple at Thiruvattar and Thriparappu Waterfalls.