The Central District of Aran and Bidgol County () is in Isfahan province, Iran. Its capital is the city of Aran and Bidgol.
At the time of the 2006 National Census, the district's population was 77,150 in 21,209 households. The following census in 2011 counted 83,378 people in 24,842 households. The 2016 census measured the population of the district as 89,228 inhabitants in 27,595 households.