Coordinates: 51°30′36″N 0°33′22″W / 51.510°N 0.556°W Middlegreen is a hamlet in the civil parish of Wexham(where the 2011 Census population was included) in Buckinghamshire, England. It is located within the Metropolitan Green Belt bordering the north-east edge of Slough and close to the Slough Arm of the Grand Union Canal. Just to the south of the hamlet is the Middlegreen Trading Estate.