Tehran County is in Tehran province of Iran. Its capital is the city of Tehran. Greater Tehran is situated mostly in the county, the most populous in Iran.

History

After the 2011 National Census, most of the Central District outside the city of Tehran was separated from the county in the establishment of Pardis County.

Demographics

Population

At the time of the 2006 census, the county's population was 7,882,843 in 2,313,002 households. The following census in 2011 counted 8,293,140 people in 2,637,704 households. The 2016 census measured the population of the county as 8,737,510 in 2,924,208 households.

Administrative divisions

Tehran County's population history and administrative structure over three consecutive censuses are shown in the following table.