|Time zone||IST (UTC+5:30)|
As of 2011[update] India census, Tisaiyanvilai has a population of 23,702. Males constitute 48% of the population and females 52%. Tisaiyanvilai has an average literacy rate of 91.12%, higher than the state average of 80.09. Male literacy is 94.10%, and female literacy is 88.22%. In Tisaiyanvilai, 11.35% of the population is under 6 years of age. Of the late, many from the district immigrate there, in search of better employment, making it an immigration hub.
There are many schools in Thisayanvilai.Daniel Thomas Group of Schools, Holy Redeemers higher secondary school, Sri Ramakrishna higher secondary school, samariya thuya yoovan higher secondary school,Sri Gold Star Matriculation School, Jayarajesh matriculation, Malavidthya school, Pothihai public school,Hindu primary school and Stella Mary's Girls High School are among them. The panchayat town also has an engineering college named as VV college of Engineering and one government arts and science college named as Mano Government Arts and Science College.
- "Census of India 2011: Data from the 2011 Census, including cities, villages and towns (Provisional)". Census Commission of India. Archived from the original on 2015-06-22. Retrieved 2015-06-22.