According to 2011 census, Tirunelvei district had a population of 3,077,233 with a sex-ratio of 1,023 females for every 1,000 males, much above the national average of 929. A total of 321,687 were under the age of six, constituting 164,157 males and 157,530 females. Scheduled Castes and Scheduled Tribes accounted for 18.51% and .33% of the population respectively. The average literacy of the district was 73.88%, compared to the national average of 72.99%. The district had a total of 815,528 households. There were a total of 1,436,454 workers, comprising 107,943 cultivators, 321,083 main agricultural labourers, 215,667 in house hold industries, 626,714 other workers, 165,047 marginal workers, 7,772 marginal cultivators, 58,680 marginal agricultural labourers, 23,997 marginal workers in household industries and 74,598 other marginal workers.