Basildon is a civil parish in the English county of Berkshire. It comprises the small villages of Upper Basildon and Lower Basildon, named for their respective heights above the River Thames. Basildon is 7 miles (11 km) from Reading, 47 miles (76 km) from London and 20 miles (32 km) from Oxford. The parish is bordered to the north by the River Thames and the Oxfordshire parishes of Goring and Whitchurch-on-Thames on the other side of the river.