As of the 2001 India census, Guntur had a population of 514,707. Males constitute 50% of the population and females 50%. Guntur has an average literacy rate of 68%, higher than the national average of 59.5%: male literacy is 74%, and female literacy is 62%. 11% of the population in the city is under 6 years of age.
The region extends over an area of 11.68 sq. miles, while its population was about 25,000 by 1866 census and 30,183 by 1902 census. By the 1961 census, Guntur had a population of 187,122. It has grown about six times in its size during these 60 years. Currently the city is estimated to have population of around 800,000 with an Urban Agglomeration of approximately 1,028,667.