As of 2011[update] India census, Sira had a population of 57,554. Males constitute 52% of the population and females 48%. Literacy rate of Sira city is 83.77% higher than state average of 75.36%. In Sira, Male literacy is around 87.47% while female literacy rate is 79.99%. In Sira, 11.68% of the population is under 6 years of age.