Mohammadshahr

Mohammadshahr is a city in the Central District of Karaj County, Alborz province, Iran, serving as the administrative center for Mohammadabad Rural District.

Population
At the time of the 2006 National Census, the city's population was 83,126 in 21,071 households, when it was in Tehran province. The 2016 census measured the population of the city as 119,418 people in 35,902 households, by which time the county had separated from the province and become a part of recently established Alborz province.