The history of Roodepoort is inextricably linked to the gold rush era that swept the Witwatersrand region in the late 19th century. The city was founded after brothers Fred and Harry Struben discovered gold on the Wilgespruit farm in 1884. This discovery attracted numerous prospectors and adventurers from around the world to the area. The settlement was officially established in 1886 on the grounds of the Roodepoort farm, which means "Red Gate" in Afrikaans—a name likely inspired by the color of the local soil.
The key factor in the city's formation was, undoubtedly, gold mining. Although initial finds were not as rich as expected, the ensuing gold rush led to the rapid growth of the settlement. Other small villages, such as Florida and Maraisburg, began to appear around the prospectors' camp. Development was further bolstered by the construction of a railway in 1890, which connected Roodepoort to Johannesburg and other mining centers, facilitating the transport of gold and passengers. In 1904, Roodepoort was granted municipal status.
From the beginning, Roodepoort's economy was entirely focused on the mining industry. The city quickly turned into a bustling mining hub with several active mines. This attracted not only laborers but also traders, contributing to the formation of a commercial district. Culturally, early Roodepoort was a typical "frontier town" with a multi-ethnic population of fortune seekers. Over time, as it grew and stabilized, it began to take on the characteristics of a full-fledged city, eventually receiving city status in 1977.