The Cantonment is situated 14 km west of the ancient historical town of Patna. The regimental centre of Bihar Regiment (BRC) established in 1949 in Danapur Cantonment, comprising of troops from Bihar Region.The Headquarters Jharkhand & Bihar is situated in Danapur Cantonment.  The Depot at Danapur is situated in a historic location, on the banks of the Sone river. The location of the depot was chosen perhaps keeping in mind the high ground for the steamers and small ships to dock for unloading stores and supplies for the Army stationed at Danapur. A Military Hospital was also established in Danapur Cantonment in 1816.

The area of the Danapur Cantonment is approx 848.50  acres. As per census 2011, the population of the Danapur Cantonment is  28,723.There are two very old and big Churches in Danapur Cantonment. Havlock Church is the oldest church in Danapur Cantonment, which was built by the Spanish in 1827. St. Luke’s Church situated near the Barrack Ground was constructed in 1830 by the Britishers. This church has a bell tower of 20 meters height, constructed in 1862 which is unique in its design. This church has an old one piece solid gong that has survived till date.

In June-July Danapur Cantonment area become a bird sanctuary as a large number of migratory birds arrive here. These birds belong to the family of cranes. These are called “Open Bill Storks” popularly known as “Jhangils”. These birds are of rare species, mostly found in India, Pakistan, Bangladesh, Myanmar, Srilanka and Thailand. Danapur Cantonment is a shelter and hatchery for the migrating “Open Bill Storks”. “Open Bill Storks” are sensitive but disciplined birds, which folly in groups in search of food. They travel long distances in search for amenable environment. “Open Bill Storks” find the Cantonment Area a safe heaven and thus flock the place each year before monsoon.