Qepchaq, West Azerbaijan

Qepchaq is a village in, and the capital of, Qepchaq Rural District of the Central District of Chaharborj County, West Azerbaijan province, Iran.

At the 2006 National Census, its population was 3,183 in 803 households, when it was in Marhemetabad-e Shomali Rural District of the former Marhemetabad District of Miandoab County. The following census in 2011 counted 3,562 people in 963 households. The latest census in 2016 showed a population of 3,669 people in 1,098 households. It was the most populous village in its rural district.

In July 2021, the district was separated from the county in the establishment of Chaharborj County, which was divided into two districts of two rural districts each, with Chahar Borj as its capital and only city.