The economy of Gangalgang parish is based on broad acre agriculture, mainly sheep, cattle, cotton and wheat.

Some say the name Warren derives from a local Aboriginal word, meaning "strong" or "substantial".

Explorer John Oxley camped on the present site of Warren during his investigation of the Macquarie River in 1818.

The railway arrived in 1898 and Burrendong Dam was opened in 1967, allowing the development of cotton and produce.

The topography is flat with a Köppen climate classification of BsK (Hot semi arid).