Bilbo Baggins’s fictional homeland in J.R.R. Tolkien’s The Hobbit is the Shire.
The Shire is a peaceful region of northwestern Middle-earth inhabited mainly by Hobbits. It is organized into settled areas such as Hobbiton, Bywater, and Tookland, and its landscape is marked by gardens, fields, lanes, and comfortable Hobbit-holes.
Bilbo lives in Bag End, a home built into a hill in Hobbiton. Frodo Baggins later inherits Bag End and begins his journey from there after receiving the One Ring. Samwise Gamgee also comes from the Shire, as do Merry and Pippin.
The Shire is not the whole of the Hobbit homeland in Tolkien’s wider geography; other Hobbit communities existed elsewhere. Its sheltered rural life is deliberately contrasted with the wars and political struggles beyond its borders. In The Lord of the Rings, the Shire’s vulnerability becomes clear when Saruman’s forces occupy it near the end of the story, prompting the Hobbits to defend and restore their home.