The township of Iran Shahr (Iranshahr) is the largest township of Sistan and Baluchestan province, located in the central and western portion of the province. To the north of this township are the townships of Zahedan, Saravan and Khash.
In the eastern sector, it lies within the limits of Saravan. To south east it has common borders with Pakistan, and to the south of Iran Shahr is Chabahar. In the west lies the province of Kerman. This city is located 1,987 km. from Tehran, and has a variable climate depending on the altitude. But in general, experiences hot summers. Iran Shahr is one of the most ancient cities of Iran which was formerly known as 'Fahraj'. During the conquests of Alexander it was a prospering and verdant vicinity and later too was an inhabited region.
During the reign of Naseredin Shah Qajar, the governor of Baluchestan constructed a few castles here and from that time onwards it gradually developed, becoming a new city.