Sandergrove is a locality in the Australian state of South Australia about 9 km (5.5 mi) south of Strathalbyn. It was a junction on the Victor Harbor railway line, where the Milang railway line branched off. The railway was authorised in 1881 and closed in 1970. The north-western end of the Nurragi Conservation Reserve, a private protected area which follows the alignment of the former Milang railway line as a rail trail, terminates at Sandergrove.