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According to the 2011 census, the taluk of Thiruvaiyaru had a population of 185,737 with 91,789 males and 93,948 females. There were 1024 women for every 1000 men. The taluk had a literacy rate of 76.32. Child population in the age group below 6 was 8,848 Males and 8,569 Females.
- "Provisional Population Totals - Tamil Nadu-Census 2011" (PDF). Census Tamil Nadu. Archived from the original (PDF) on 17 June 2013. Retrieved 4 July 2013.