The Markazi (Central) Province with an area of 29,406 square kilometers is limited to the provinces of Tehran and Qazvin from the north, to Hamedan from the west, to Lurestan and Esfahan from the south, and to Qom from the east. This province includes the townships of Ashtian, Arak, Tafresh, Khomein, Delijan, Saveh, Sarband and Mahallat. The city of Arak is the center of this province. In 1996 the population of this province was 1.2 million out of which 57.1% lived in urban areas and 42.9% resided
in rural areas. This province is to the east of the intersection of the Alborz and Zagross Mountain Ranges. The unevenness of this province includes parts of the central mountains and internal parts of the Zagross Mountains Range.
The lowest part of this province are the plains to the south and east of Saveh which is between 500-1000 m. high, and its highest point is the Rasvand summit which is 3,342 m. high, and is located in the Rasvand Mountain Range to the southwest of Arak.