Aradan (Persian: آرادان)[a] is a city in the Central District of Aradan County, Semnan province, Iran, serving as capital of both the county and the district.

[4] At the time of the 2006 National Census, the city's population was 4,959 in 1,380 households,[5] when it was capital of the former Aradan District of Garmsar County.

[7] The 2016 census measured the population of the city as 6,257 people in 2,093 households,[2] by which time the district had been separated from the county in the establishment of Aradan County.

Aradan was transferred to the new Central District as the county's capital.

[4] Aradan corresponds with the ancient city of Choara (Khuwar), located in the historical region of Qumis, along the Great Khorasan Road.