Marcham is a village and civil parish about 2 miles (3 km) west of Abingdon, Oxfordshire. The 2011 Census recorded the parish's population as 1,905. The parish includes the hamlets of Cothill 1+3⁄4 miles (2.8 km) east-northeast of the village, and Gozzard's Ford 1+1⁄2 miles (2.4 km) northeast of the village. Frilford and Garford used to be townships of Marcham parish, but are now separate civil parishes. All these parishes were part of Berkshire until the 1974 boundary changes transferred them to Oxfordshire.