Orkhon Aimag is one of the 21 Aimags

Aimags of Mongolia

Mongolia is divided into 21 aimags . Each aimag is subdivided into several sums. The name aimag is derived from the Mongolian and Turkic languages word for "tribe". The modern aimags were established since 1921...

 (provinces) of Mongolia

Mongolia

Mongolia is a landlocked country in East and Central Asia. It is bordered by Russia to the north and China to the south, east and west. Although Mongolia does not share a border with Kazakhstan, its western-most point is only from Kazakhstan's eastern tip. Ulan Bator, the capital and largest...

, located in the north of the country. Its capital is Erdenet

Erdenet

Erdenet is the third-largest city in Mongolia and the capital of the aimag of Orkhon.Located in the northern part of the country, it lies in a valley between the Selenge and Orkhon rivers about 150 miles northwest of Ulan Bator, the capital...

. The province is named after Orkhon River.
This Aimag was cut out of Bulgan Aimag

Bulgan Province

Bulgan is one of the 21 aimags of Mongolia, located in northern Mongolia. Its capital is also named Bulgan.- Geography :The aimag is surrounded by the aimags Khövsgöl in the northwest, Arkhangai in the southwest, Övörkhangai in the south, Töv in the southeast, and Selenge in the northeast...

 in 1994, to form a new entity together with its capital Erdenet

Erdenet

Erdenet is the third-largest city in Mongolia and the capital of the aimag of Orkhon.Located in the northern part of the country, it lies in a valley between the Selenge and Orkhon rivers about 150 miles northwest of Ulan Bator, the capital...

, which had previously been administrated as a federal municipality.

Administrative Subdivision

The Sums of Orkhon Aimag

Sum	Mongolian Mongolian language The Mongolian language is the official language of Mongolia and the best-known member of the Mongolic language family. The number of speakers across all its dialects may be 5.2 million, including the vast majority of the residents of Mongolia and many of the Mongolian residents of the Inner...	Area km²	Population (2004)	Population (2006)	Population (2008)	Population (2009)	Density /km²
Bayan-Öndör Bayan-Öndör, Orkhon Bayan-Öndör is a sum of Orkhon Province in northern Mongolia. Bayan-Öndör sum includes Orkhon Province capital Erdenet city. It was officially established in 1994 and has a population of approximately 86200.... *		208.0	80,858	83,160	86,866	88,046	423.30
Jargalant Jargalant, Orkhon Jargalant is a sum of Orkhon Province in northern Mongolia....		635.6	2,733	3,125	3,009	3,166	4.98

^* - includes aimag capital Erdenet

Erdenet

Erdenet is the third-largest city in Mongolia and the capital of the aimag of Orkhon.Located in the northern part of the country, it lies in a valley between the Selenge and Orkhon rivers about 150 miles northwest of Ulan Bator, the capital...