Jambudwip (also called Jambudvipa) is the central earthly continent described in Jain cosmology. Here is a simple, authentic overview:

• Location in Jain cosmology: Jambudwip is the main landmass of Bhurloka (the earthly realm). It is one of the seven continents and is considered the primary home of human beings according to Jain scriptures.
• Geography and features: Like other Jain texts, it describes rivers, mountains, forests, and towns within this continent. The geography is presented in a mytho-spiritual framework rather than as a modern geographic map.
• Inhabitants and spiritual purpose: It is the realm where humans and many deva-like beings perform their karmic journeys. The worldly life described in the Jain arahants’ and Tirthankaras’ teachings often begins and unfolds within this continent.
• Variations between Digambara and Śvetāmbara: Both traditions affirm Jambudwip as the central landmass of Bhurloka, but there can be stylistic differences in how specific places are named or described in different sutras or commentaries. The core idea—that Jambudwip is the primary earthly continent—remains consistent.

If you’d like, I can share a brief sutra-stotra excerpt that mentions Jambudwip in its original language and provide a precise Jain-definition (arth) from Digambara and Śvetāmbara sources.