A district or sum (; ) is a second-level administrative subdivision of Mongolia. The 21 provinces of Mongolia are divided into 330 sums.

On average, each district administers a territory of with about 5,000 inhabitants, primarily nomadic herders. Its total revenue is 120 million Tögrög, 90% of which comes from national subsidies.

Each district is again subdivided into bags (brigades; sometimes spelled baghsMontsame News Agency. Mongolia. 2006, Foreign Service office of Montsame News Agency, , p. 46). Most bags are of an entirely virtual nature. Their purpose is to sort the families of nomads in the district into groups, without a permanent human settlement.

Officially, and occasionally on maps, many district seats (sum centers) bear a name different from that of the district. However, in practice the district seat (sum center) is most often referred to under the name of the district, to the point of the official name of the district seat (sum center) being unknown even to the locals.

Arkhangai Province

19 sum

Battsengel Bulgan Chuluut Erdenebulgan Erdenemandal Ikh-Tamir Jargalant Khangai Khashaat Khairkhan Khotont Ögii nuur Ölziit Öndör-Ulaan Tariat Tsakhir Tsenkher Tsetserleg Tüvshrüülekh

Bayan-Ölgii Province

13 district, 1 village

Altantsögts Altai Bayannuur Bugat Bulgan Buyant Delüün Nogoonnuur Ölgii Sagsai Tolbo Tsagaannuur (village) Tsengel Ulaankhus

Bayankhongor Province

20 sum

Baatsagaan Bayan-Öndör Bayan-Ovoo Bayanbulag Bayangovi Bayankhongor Bayanlig Bayantsagaan Bogd Bömbögör Buutsagaan Erdenetsogt Galuut Gurvanbulag Jargalant Jinst Khüreemaral Ölziit Shinejinst Zag

Bulgan Province

16 sum

Bayan-Agt Bayanuur Bugat Bulgan Büregkhangai Dashinchilen Gurvanbulag Khangal Khishig-Öndör Khutag-Öndör Mogod Orkhon Rashaant Saikhan Selenge Teshig

Darkhan-Uul Province

4 sum Darkhan Khongor Orkhon Sharyngol

Dornod Province

14 sum

Bayan-Uul Bayandun Bayantümen Bulgan Choibalsan Chuluunkhoroot Dashbalbar Gurvanzagal Khalkhgol Kherlen Khölönbuir Matad Sergelen Tsagaan-Ovoo

Dornogovi Province

14 sum

Altanshiree Airag Dalanjargalan Delgerekh Erdene Khatanbulag Khövsgöl Ikhkhet Mandakh Örgön Saikhandulaan Sainshand Ulaanbadrakh Zamyn-Üüd

Dundgovi Province

15 sum

Adaatsag Bayanjargalan Delgerkhangai Delgertsogt Deren Erdenedalai Govi-Ugtaal Gurvansaikhan Khuld Luus Ölziit Öndörshil Saikhan-Ovoo Saintsagaan Tsagaandelger

Govi-Altai Province

18 sum

Altai Bayan-Uul Biger Bugat Chandmani Darvi Delger Erdene Khaliun Khökh morit Jargalan Sharga Taishir Tögrög Tonkhil Tseel Tsogt Yesönbulag

Govisümber Province

3 sum Bayantal Shiveegovi Sümber (Choir)

Khentii Province

17 sum

Batnorov Bayan-Adarga Bayankhutag Bayanmönkh Bayan-Ovoo Binder Dadal Darkhan Delgerkhaan Eg Galshar Kherlen Jargaltkhaan Mörön Norovlin Ömöndelger Tsenkhermandal

Khovd Province

17 sum

Altai Bulgan Buyant Chandmani Darvi Dörgön Duut Erdenebüren Jargalant (Khovd city) Khovd (sum) Mankhan Mönkhkhairkhan Möst Myangad Tsetseg Üyench Zereg

Khövsgöl Province

23 sum

Alag-Erdene Arbulag Bayanzürkh Bürentogtokh Chandmani-Öndör Erdenebulgan Galt Khankh Ikh-Uul Jargalant Mörön Rashaant Renchinlkhümbe Shine-Ider Tarialan Tömörbulag Tosontsengel Tsagaan-Uul Tsagaannuur Tsagaan-Üür Tsetserleg Tünel Ulaan-Uul

Ömnögovi Province

15 sum

Bayan-Ovoo Bayandalai Bulgan Dalanzadgad Gurvan tes Khanbogd Khan khongor Khürmen Mandal-Ovoo Manlai Nomgon Noyon Sevrei Tsogt-Ovoo Tsogttsetsii

Orkhon Province

2 sum Bayan-Öndör Jargalant

Övörkhangai Province

19 sum

Arvaikheer Baruun Bayan-Ulaan Bat-Ölzii Bayan-Öndör Bayangol Bogd Bürd Guchin-Us Kharkhorin Khairkhandulaan Khujirt Nariinteel Ölziit Sant Taragt Tögrög Uyanga Yesönzüil Züünbayan-Ulaan

Selenge Province

17 sum

Altanbulag Baruunbüren Bayangol Javkhlant Khüder Khushaat Mandal Orkhon Orkhontuul Sant Saikhan Shaamar Sükhbaatar Tsagaannuur Tüshig Yeröö Züünbüren

Sükhbaatar Province

13 sum

Asgat Baruun-Urt Bayandelger Dariganga Erdenetsagaan Khalzan Mönkhkhaan Naran Ongon Sükhbaatar Tüvshinshiree Tümentsogt Uulbayan

Töv Province

27 sum

Altanbulag Argalant Arkhust Batsümber Bayan Bayan-Önjüül Bayanchandmani Bayandelger Bayanjargalan Bayankhangai Bayantsagaan Bayantsogt Bornuur Büren Delgerkhaan Erdene Erdenesant Jargalant Lün Möngönmort Öndörshireet Sergelen Sümber Tseel Ugtaal Zaamar Zuunmod

Uvs Province

19 sum

Baruunturuun Bökhmörön Davst Khovd Khyargas Malchin Naranbulag Ölgii Ömnögovi Öndörkhangai Sagil Tarialan Tes Tsagaankhairkhan Türgen Ulaangom Zavkhan Züüngovi Züünkhangai

Zavkhan Province

24 sum

Aldarkhaan Asgat Bayankhairkhan Bayantes Dörvöljin Erdenekhairkhan Ider Ikh-Uul Nömrög Otgon Santmargats Shilüüstei Songino Telmen Tes Tosontsengel Tsagaanchuluut Tsagaankhairkhan Tsetsen-Uul Tüdevtei Uliastai Urgamal Yaruu Zavkhanmandal

References and external links

All Mongolian sums population 2009.12.31