According to the 2011 census, the taluk of Sankari had a population of 242,671 with 125,818 males and 116,853 females. There were 929 women for every 1000 men. The taluk had a literacy rate of 62.49. Child population in the age group below 6 was 10,862 Males and 9,433 Females.
The nearest railway station is Sankagiri Railway station, which is about 3 km from the center of the Sankagiri town and Salem (SXV) airport is the nearest airport.
- "Provisional Population Totals - Tamil Nadu-Census 2011". Census Tamil Nadu. Retrieved 4 July 2013.
- "Primary Census Abstract - Census 2001". Directorate of Census Operations-Tamil Nadu.