Originally a station of the London Missionary Society called Sibiling, it became a Griqua village with the name Blinkklip.

[3] It was proclaimed a town on 6 June 1892 and named after the Reverend Dirk Postma (1818–1890), founder of the Reformed Churches in South Africa.

The South African Army's Combat Training Centre is located nearby, at Lohatla.

The town is home to Hungry Lions, a soccer team playing in the National First Division.

The Iron Ore mine officially opened in June 2012 provides job opportunities for the local communities and a green hydrogen plant is estimated to be built by 2029 by Thabiso Dube to form more job opportunities.