Nagaon is a city and a municipal board in Nagaon district in the Indian state of Assam. It is situated 123 kilometres (76 mi) east of Guwahati. It is the fifth largest city of assam with a population of 147,231. As per provisional reports of Census India, population of Nagaon in 2011 is 116,355; of which male and female are 59,021 and 57,334 respectively. The sex ratio of Nagaon city is 971 per 1000 males.