Karaj County

Karaj County is in Alborz province, Iran. The capital of the county is the city of Karaj.

History
In 2009, three villages merged to become the city of Asara. In August 2010, Karaj, Nazarabad, and Savojbolagh Counties were separated from the province in the establishment of Alborz province.

In June 2012, Eshtehard District was separated from the county in the formation of Eshtehard County, which was divided into two districts of two rural districts each, with Eshtehard as its capital and only city at the time.

In July 2013, the city of Meshkin Dasht was separated from the county in the establishment of Fardis County.

Population
At the time of the 2006 National Census, the county's population was 1,709,481 in 472,365 households. The 2016 census measured the population of the county as 1,973,470 in 623,801 households.

Administrative divisions
Karaj County's population history and administrative structure over two censuses are shown in the following table.