Khomeini Shahr (Formerly known as Homayunshahr or Homayoon Shahr) is located to the west of Esfahan and to the east of Falavarjan (in Isfahan Province). The foundation of this city is related to the Sassanide period, and Kohan Dej en route to Esfahan was one of the capitals of their times.
The former name of this city was Sadeh. In the 1930s, the name was changed to Homayunshahr. After the Iranian Revolution of 1979, the city was renamed again to Khomeyni Shahr (meaning "City of Khomeyni"), in honor of Ayatollah Khomeini. Locals have continued to refer to the city as Sedeh. There has been an ongoing effort to rename back the city's name to its historical one Mehrbin
Khomeyni Shahr is now part of the Isfahan Metropolitan area.