The state is almost wholly an inland state, with only 48 km of coastline. It bounded on the north by Selangor, on the west by Pahang and the south by Melaka and Johor.

A large part of the State is mountainous as it is covered by southern slopes of the Main Range (Banjaran Titiwangsa).

The state’s biggest river, the Sungai Linggi, rises in these hills north of Seremban.