At the time of the 2006 National Census, Delgosha's population was 3,931 in 676 households, when it was a village in Gachi Rural District of the former Malekshahi District[c] of Mehran County.[5] The following census in 2011 counted 2,201 people in 551 households,[6] by which time the district had been separated from the county in the establishment of Malekshahi County,[7] and the village had been elevated to the status of a city.[8] Delgosha and the rural district were transferred to the new Gachi District. The 2016 census measured the population of the city as 1,819 people in 510 households.[2]
^Davodi, Parviz (c. 2024) [Approved 28 July 1387]. Approval letter regarding changes and reforms of divisions in Ilam province. lamtakam.com (Report) (in Persian). Ministry of the Interior, Council of Ministers. Proposal 91494/42/1/4/1; Notification 145145/T342H. Archived from the original on 8 February 2024. Retrieved 8 February 2024 – via Lam ta Kam.