Chalsara (Persian: چال‌سرا)[a] is a village in, and the capital of, Deh Pain Rural District of the Central District of Ilam County, Ilam province, Iran.

[5] At the time of the 2006 National Census, the village's population was 2,910 in 606 households.

[6] The following census in 2011 counted 3,628 people in 904 households.

[7] The 2016 census measured the population of the village as 4,480 people in 1,241 households.

This Ilam County location article is a stub.