According to the Imperial Gazetteer, Gajapathinagaram Tahsil in Vizianagaram district had about 228 villages and covered an area of . The population in 1901 was 1,34,553, compared with 1,24,057 in 1891. India
census, Gajapathinagaram had a population of 5,282. Males constitute 48% of the population and females 52%. Gajapathinagaram has an average literacy rate of 60%, higher than the national average of 59.5%: male literacy is 67%, and female literacy is 53%. In Gajapathinagaram, 11% of the population is under 6 years of age. Gajapathinagaram mandal had a population of 56,054 in 2001. Males constitute 27,770 and females 28,284 of the population. The average literacy rate of the mandal population is 45%. Male literacy rate is 56% and that of females 34%. There are 35 revenue villages and 28 panchayats in this mandal. ==Legislative Assembly==