The city's population was approximately 19,000 in 2006, according to the Palestinian Central Bureau of Statistics and depends mostly on agriculture as the main source of income. Moreover, small industry is involved with producing construction supplies like bricks and agricultural implements, while some residents work in commerce. The society is strongly influenced by tribal structure so, there are many extended families such as Al Daghmah, M'ssabih, Alshawaf, Abu Yousef, Abu Mustafa, Abu Tair, Abu Dagga, Abu Tabash, Abu Draz, Abu Mutlaq, Abu Hamed, Abu subha and Abu Amer. The families generally turn to custom to solve disputes amongst themselves.
The site of the city was inhabited in the Roman era and 606 CE, and has several ruins dating from those periods. Furthermore, there are also some archaeological sites that related to Islamic era and the period prior the Islam like "Ibrahim" shrine. Some historians link the people of Abasan to the "Abes family".