Its north boundary is the Torrens River and the Sturt River forms the south east boundary, with the hundred extending to the Adelaide foothills.

[2] The Hundred of Adelaide includes all of Adelaide's metropolitan area south of the Torrens and north of the Sturt River, with those inner suburbs north of the Torrens falling in the Hundred of Yatala.

From November 1952, the "Act to appoint District Councils" meant that other townships and urban centres within the hundred started formed local government bodies, with the new district councils of Mitcham in the south, East Torrens in the east and Hindmarsh in the west being established by May 1853.

By July of the same year the District Council of West Torrens had been established in the west and the Corporate Town of Kensington and Norwood had been established as an enclave inside East Torrens council, bringing the whole of the hundred under local government.

The modern local government areas within the Hundred of Adelaide are:[1][3]