Ulaanbaatar is divided into nine düüregs or municipal districts: Baganuur, Bagakhangai, Bayangol, Bayanzürkh, Chingeltei, Khan Uul, Nalaikh, Songino Khairkhan and Sükhbaatar. Each district is subdivided into khoroos, of which there are 204. Each düüreg also serves as a constituency that elects one or more representatives into the State Great Khural, the national parliament.
History Ulaanbaatar was divided into administrative divisions for the first time in 1924. After the adoption of the third constitution in 1960, Ulaanbaatar consisted of four districts on 6 July 1960. In 1990, the city was reorganized to have six districts. On 13 January 1992, the city was reorganized again and expanded into nine districts as of today.
List by population and area 2020 population estimate from Ulaanbaatar city Agency for Statistics. Düüreg nameMongolianKhoroosPopulationAreaPopulation density Bagakhangai Багахангай 2 4,463 140.0 km2 31.9/km2 Baganuur Багануур 5 29,342 620.2 km2 47.3/km2 Bayangol Баянгол 34 231,517 29.5 km2 7848.0/km2 Bayanzürkh Баянзүрх 43 367,679 1244.1 km2 295.5/km2 Chingeltei Чингэлтэй 24 151,203 89.3 km2 1293.2/km2 Khan Uul Хан Уул 25 195,927 484.7 km2 404.2/km2 Nalaikh Налайх 8 38,690 687.6 km2 56.3/km2 Songino Khairkhan Сонгино хайрхан 43 335,703 1200.6 km2 279.6/km2 Sükhbaatar Сүхбаатар 20 144,616 208.4 km2 693.9/km2 Ulaanbaatar 204 1,499,140 4704.4 km2 318.7/km2 Although administratively part of Ulaanbaatar, Nalaikh and Baganuur are separate cities. Bagakhangai and Baganuur are noncontiguous exclaves, the former located within the Töv Province, the latter on the border between the Töv and Khentii provinces.
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