[citation needed] At the time of the 2006 National Census, the city's population was 53,897 in 10,889 households.

[7] The weather in Shush has very hot summers that may reach above 50 degrees Celsius and mild and rainy winters.

[8] The city's economic growth was spurred by the construction of the Tehran-Khorramshahr highway and the Trans-Iranian Railway station.

In the vicinity of the city, the government of Mohammad Reza Pahlavi built the Dez Dam for hydroelectric power (constructed between 1959 and 1963), the largest development project in Iran at the time of construction.

[9] Following the dam's completion, the region developed a modern irrigation system and agribusiness grew.