Alborz County (Persian: شهرستان البرز) is in Qazvin province, Iran.

[3] After the 2006 National Census, the village of Sharifabad was elevated to the status of the city of Sharifiyeh.

[8] The 2016 census measured the population of the county as 242,865 in 75,922 households.

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

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