Shahreza located in the southwest of the province, to the north of which are Esfahan and Lanjan and to the west is within the limits of the province of Chahar Mahal and Bakhtiyari. To its south is the township of Semirom and in the eastern direction is the township of Esfahan. This ancient city was primarily known as Qomsheh, but due to the presence of the tomb of Imamzadeh Shahreza (AS) it came to be called by the latter. One of the noted and historical sites dating to the Saljuqi era, is the nocturnal area of the Jame' Mosque of this city. Qomsheh means a hunting ground or an area rich in water and with many such subterranean canals.
The most important tourist attractions are: Mahyar caravanserai, Shah Reza caravanserai, the Shah Ghandab caves, located south-east of Shahreza, the Poodeh mosque, and Shahreza Imamzadeh. Other tourist attractions include the Amin Abad caravanserai, a Safavid dynasty structure in Amin Abad, a village 42 km south of Shahreza.
It was one of the ancient territories of northern Pars (Persia) Satrapy in B.C. In the north of the county there is canion of orchiny(orchine) that the main Iranian north-south high way passes through. The huge castle of Qomsheh was the latest place before occupation of the capital Isfahan in the last of Safavid ages when Afghans captured it.