Khomeyn (Persian: خمين‎‎, also Romanized as Khomeīn, Khowmeyn, and Khūmaīn) is a city in and the capital of Khomeyn County, Markazi Province, Iran. At the 2006 census, its population was 64,031, in 17,399 families.Khomeyn is located to the south of the province, in a fertile plain, about 160 kilometres (99 mi) from Qom and 325 kilometres (202 mi) from Tehran. The climate of Khomeyn is a moderate mountainous inclining to a semi-desert one. Winters are cold and summers are moderate.