Bileuëng ureuëng duëk Mongolia nibak Juli 2007 geupeukira lé U.S. Census Bureau nakeuh 2.951.786 droë nyang nakeuh neumbôi 138 paléng le di dônya. Nibak nyan, United Nations Department of Economic and Social Affairs Population Division geupeukira bileuëng ureuëng duëk Mongolia (teungoh thôn 2007) nakeuh 2.612.900 droë. Angka nyan meuhië ngon Badan Bileuëng Mongolia (Mongolian National Statistical Office) , nyang geupuduëk bileuëng ureuëng duëk 2.612.900 nibak akhé Juni 2007. Bileuëng timoh ureuëng duëk Mongolia nakeuh 1,2% kirajih (2007). 59% nibak ureuëng duëk diyub 30 thôn umujih, 27% nibak nyan nakeuh diyub 14 thôn. Mongolia jinoë ka timoh modèrèn. Ubé 40% nibak ureuëng duëk tinggai di Ulaanbaatar. Bak 2002, 30% ai di Mongolia meuhareukat ngon geupeulara hiweuën. Ureuëng meupeulara hiweuën mantöng meupinah-pinah udép (nomad atawa semi-nomad). Sukèë Mongol nakeuh 85% nibak bileuëng ureuëng duëk. Sukèë-sukèë Mongol na padum boh kawôm lagèë Khalkha ngon la’én lom nyang geupeula’én ngon lugat droë nibak bahsa Mongol. Sukèë Khalkha nakeuh 90% nibak sukèë bansa Mongol di Mongolia. Euntèë 10%jih nakeuh Buryat, Durbet, ngon la’én di barôh ngon Dariganga di timu. Sukèë bansa Turki (Kazakh, Tuva, ngon Chantuu (Uzbek) nakeuh 7% nibak ureuëng duëk. Euntèë ureuëng duëk nakeuh Sukèë bansa Tungus, China, ngon Rusia. Sukèë Rusia le nyang gisa u Rusia aleuh Soviet Union rhöt bak 1991.