|Time zone||UTC+5:30 (IST)|
|Vehicle registration||TN-19, TN-19AX|
As of 2001[update] India census, Pudupattinam had a population of 20,897. Males constitute 51% of the population and females 49%. Pudupattinam has an average literacy rate of 81%, higher than the national average of 59.5%: male literacy is 86%, and female literacy is 76%. In Pudupattinam, 10% of the population is under 6 years of age.
- "Census of India 2001: Data from the 2001 Census, including cities, villages and towns (Provisional)". Census Commission of India. Archived from the original on 16 June 2004. Retrieved 1 November 2008.