According to the 2011 census, the taluk of Kallakkurichi had a population of 465,236 with 234,796 males and 230,440 females. There were 981 women for every 1000 men. The taluk had a literacy rate of 63.49. Child population in the age group below 6 was 26,388 Males and 23,890 Females.
- "Provisional Population Totals - Tamil Nadu-Census 2011" (PDF). Census Tamil Nadu. Retrieved 4 July 2013.
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