Gajendragarh is a small town in Gadag district of the southern state of India, Karnataka. The nearest airport is the Hubli Airport at a distance of 90 km. and the nearest railway station is the Gadag Junction Railway Station. Gadag, the district headquarters is located at a distance of 50 km. in the northeast. The nearby towns are Sudi, Nidgundi and Yelburga. It is located between 15.73° North latitude and 75.98° East longitude at a height of 643 metres (2109 feet) above mean sea level.

According to the 2001 India census report, Gajendragarh had a population of 28,227 inhabitants. Males constitute 51% of the population and females constitute 49% of the population. In Gajendragarh, 14% of the population is less than six years of age. Gajendragarh has an average literacy rate of 62%, which is higher than the national average literacy rate of 59.5%. The male literacy rate is 74%, and the female literacy rate is 51%.