Eslamshahr County (Persian: شهرستان اسلام‌شهر) is in Tehran province, Iran.

The village of Ahmadabad-e Mostowfi was elevated to the status of a city.

[4] At the time of the 2006 census, the county's population was 447,192 in 114,009 households.

[2] Eslamshahr County's population history and administrative structure over three consecutive censuses are shown in the following table.

According to the information of the State Meteorological Organization of Iran, the long-term average annual rainfall of Eslamshahr County is around 215 mm[7] Media related to Eslamshahr County at Wikimedia Commons