Its center is the town of Si Racha, on the Gulf of Thailand, about halfway between Chonburi and Pattaya.

With Chonburi to the north and Pattaya, Bang Lamung township, Laem Chabang to the south, it forms the bulk of the economic zone of the eastern seaboard of Thailand, a fast-growing area that is second to only greater Bangkok in population and wealth.

[citation needed] Due to its infrastructure, Laem Chabang and the eastern seaboard in general, is the nation's leading entrepôt.

[4] Khao Kheow Open Zoo is located here; home of the virally popular Moo Deng pigmy hippo.

Si Racha is divided into eight sub-districts (tambon), which are further subdivided into 72 administrative villages (muban).