Watlington is a small market town and civil parish about 7 miles (11 km) south of Thame in Oxfordshire, near the county's eastern edge and less than 2 miles (3 km) from its border with Buckinghamshire. The parish includes the hamlets of Christmas Common, Greenfield and Howe Hill, all of which are in the Chiltern Hills. The 2011 Census recorded the parish's population as 2,727.