The town, around 175 km from Mariental, had at first been known as Arahoab, but due to confusion with Aroab, the name was changed to Aranos, a portmanteau of Arahoab and the Nossob River, on the banks of which Aranos lies. In 1954, Aranos was granted town status, and in 1957, a town board was founded. The town grew quickly at first. During the tenure of Dr. D.C.S. van der Merwe (pastor in Windhoek from 1950 to 1957, who was also responsible for Aranos), the church council obtained a parcel of land from the town. An architect from Windhoek was tasked with the blueprint. The church council issued bonds for the church building, but they were insufficient, so they took ownership. Fortunately, money from sales and donations was plentiful. Most members, especially the younger ones, worked avidly on the project since they wanted a church based where their children were in boarding school. On February 11, 1959, exactly a century after Dm. Dirk Postma founded the GKSA under a lilac tree in Rustenburg in the faraway Transvaal Republic, Dm. H.A. Louw laid the keystone of the Aranos Reformed Church. The members worked hard to build the church under council guidance, especially a builder named Kiepie Erasmus. The builders deviated from the architect's plan, however, for instance completing the concrete tower with cement bricks. Not long after the completion of the church building, the council built a rectory. Louw's successor, Dm. M.A. Kruger, was the first pastor to live there. Over the years, the Aranos congregation coped with financial problems and never grew significantly. At the end of 1958, for example, there were 76 confirmed members, and at the end of 1997, there were 84. However, in the next four years the congregation cut in half to 36 of them and to half again at 16 by the end of 2014. The members' efforts continued, however, in 2016 outside of GKSA auspices. Even before the Middellande Synod (primarily consisting of black churches) and its primarily white or mixed-race counterparts were reclassified into the Klassis format, denominations seceded from Aranos, including Namib-Kus in 2007 and Khomas-Hoogland in 2009. The three congregations were all members until 2016 of the Klassis Waterberg, along with Outjo, Otjiwarongo, and Biermanskool, while the other 12 Namibian churches belonged to Klassis Etosha.