Original: Tehran Tehran 13,530,742 13 Until 1986, Tehran was part of Markazi province.
Simplified: Zahedan 181,785 2,290,076 12.6 8 TehranUntil 1986, Tehran was part of Markazi province. Tehran 18,814 12,150,742 645.8 13 YazdIn 1986, part of Kerman province was transferred to Yazd province.