Siyathemba Local Municipality is a local municipality in the PixleykaSeme District Municipality in the Northern Cape Province of South Africa.Siyathemba Municipality is a Category B Municipality (NC077), established in 2001, in accordance with the demarcation process. The municipality is located within the central eastern parts of the Northern Cape Province on the banks of the Orange River, and falls within the boundaries of the PixleykaSeme District. The nearest business centre is Kimberley, which is about 220km away.
Siyathemba Municipality was initially made up of three entities, namely, Prieska, Marydale and Niekerkshoop. After demarcation the area was extended to include not only the towns and surrounding suburbs of Marydale, Niekerkshoop and Prieska but also Copperton.The municipal area encompasses a geographic area of approximately 8,200km², which implies that Siyathemba Municipality accounts for 8% of the total district surface area and approximately 3% of the provincial area. The municipality is divided into 5 Wards.