Shahrak-e Isar (Persian: شهرك ايثار,)[a] is a village in Kuhestan Rural District of Rostaq District, Darab County, Fars province, Iran.

At the time of the 2006 National Census, the village's population was 866 in 200 households.

[5] The 2016 census measured the population of the village as 1,680 people in 495 households.

It was the most populous village in its rural district.

This Darab County location article is a stub.