As of 2001[update] India census, Gajuwaka had a population of 259,944. Males constitute 52% of the population and females 48%. Gajuwaka has an average literacy rate of 70%, higher than the national average of 59.5%: male literacy is 77%, and female literacy is 63%. In Gajuwaka, 12% of the population is under 6 years of age.
Growing into a factory town, since the 1990s it has seen a rapid increase in commercial establishments like shopping malls, and cinema theatres. It is the focal point for commerce for most villages and suburbs to its south, not counting its own population.