Districts (Malay: daerah) are the principal administrative divisions of Brunei.
The country is divided into four districts, namely Brunei-Muara, Belait, Tutong and Temburong.
Temburong is an exclave; it is physically separated from the three other districts by the Brunei Bay and Malaysian state of Sarawak.
Each district has a town as its administrative and main economic centre, with the exception of Brunei-Muara, where the principal centre is Bandar Seri Begawan, a city and the country's capital.
The head of each department is a District Officer (Pegawai Daerah) and appointed by the government.