[3] Greater Tehran is situated mostly in the county, the most populous in Iran.

[4] At the time of the 2006 census, the county's population was 7,882,843 in 2,313,002 households.

[6] The 2016 census measured the population of the county as 8,737,510 in 2,924,208 households.

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

Media related to Tehran County at Wikimedia Commons