Zarrin Gol Rural District () is in the Central District of Aliabad-e Katul County, Golestan province, Iran. Its capital is the village of Kordabad.
At the time of the 2006 National Census, the rural district's population was 9,292 in 2,194 households. There were 9,785 inhabitants in 2,745 households at the following census of 2011. The 2016 census measured the population of the rural district as 10,175 in 2,997 households. The most populous of its 14 villages was Mehdiabad, with 2,848 people.