Ulaanbaatar is divided into nine districts (Düüregs): Baganuur, Bagakhangai, Bayangol, Bayanzürkh, Chingeltei, Khan Uul, Nalaikh, Songino Khairkhan and Sükhbaatar. Each district is subdivided into khoroos, of which there are 173. Each düüreg also serves as a constituency that elects one or more representatives into the State Great Khural, the national parliament.