EsfajinEsfajin is a village in, and the capital of, Zanjanrud-e Bala Rural District in the Central District of Zanjan County, Zanjan province, Iran.DemographicsPopulationAt the time of the 2006 National Census, the village's population was 835 in 201 households. The following census in 2011 counted 1,026 people in 269 households. The 2016 census measured the population of the village as 927 people in 261 households.