Klawer developed around a railway station, which opened in 1914, servicing the Olifants River Valley and was named after a type of wild clover that grows here after the winter rains.
The town lies in the Matzikama Region of the Western Cape and is located 280 km north of Cape Town on the N7 highway towards Namibia and 60 km from the coastal town of Strandfontein. The town, vineyards, orchards and pastures are irrigated by the Olifants River and the water canal that supplies water to the arid region.
The 260 km canal built in the early 1900s, flows along the left bank all the way to Krans, just south of Klawer. Here it splits in two: one stream following the left bank while the other canal was taken over the river by means of a steel structure and bridgeheads, to the right bank. Klawer has 6 234 residents of which 89% speak Afrikaans, according to the 2011 census.