Aghajari (, also Romanized as Āghājārī and Āghā Jārī; also known as Aghajari-e Zeydūn and Āqā Jarī) is a city in the Central District of Aghajari County, Khuzestan province, Iran, and serves as both capital of the county and of the district. Because of the Iran-Iraq War, the city's population dropped from 64,102 in 1986 to around 16,337 in the 1991 census and its population continued to drop long after the 1991 census (held 3 years after the end of the Iran-Iraq War).
At the 2006 National Census, its population was 13,152 in 2,943 households, when it was in the former Aghajari District of Behbahan County. The following census in 2011 counted 12,653 people in 3,400 households. The latest census in 2016 showed a population of 11,912 people in 3,477 households, by which time the district had been separated from the county in the establishment of the new Aghajari County.The language of the people of Aghajari is the same as Masjid Suleiman and Lori Bakhtiari.
Climate
Aghajari has a hot desert climate (Köppen climate classification BWh) with long, scorching hot summers and pleasant to warm, short winters. Aghajari is consistently one of the hottest places on the planet during the summer, with summer temperatures regularly at least , sometimes exceeding with many sandstorms and duststorms. However, in winters, the minimum temperature can fall to around . Winters in Aghajari have no snow. The average annual rainfall is around .