The Gereformeerde Kerk is located next to the Methodist Church on the main street. They were built on the outspan, later to become Market Square.

Ds Dirk Postma founded this congregation at Grootfontein in 1860. The church building was finished in 1862 and is the oldest “Gereformeerde Kerk” building in South Africa. The land was donated by the Dutch Reformed Church.

The congregation started with between 250 and 300 members. For the then minister of the Dutch Reformed Church in Middelburg, Rev. William Murray, it must have been a sad experience. He was still unmarried and lived with one of his elders, H.T.J. van der Walt, co-owner of Grootfontein, the farm on which the new Reformed Church congregation was founded. Van der Walt was even elected as an elder.

The building still looks very much as it did although the entrance has been switched around.  The bell tower is separate from the church building and still has its original bell.

The original church organ was donated by the Dutch Reformed Church in 1904. Subsequently a new organ was installed in 1949 around the same time a new alter was put in and the old organ was donated to the mission church. The organ pipes are at the front of the church. There is a lot of wood in the church which assists with the good acoustics.