The Central District of Aradan County () is in Semnan province, Iran. Its capital is the city of Aradan.

At the National Census in 2006, its population (as a part of the former Aradan District of Garmsar County) was 10,673 in 3,045 households. The following census in 2011 counted 11,807 people in 3,661 households. At the latest census in 2016, the district had 11,060 inhabitants in 3,838 households, by which time the district had been separated from the county to establish Aradan County with two districts, four rural districts, and the city of Aradan as its capital.

References 

Aradan County

Districts of Semnan Province

Populated places in Aradan County

2011 establishments in Iran