Thurrock is a unitary authority area with borough status in the ceremonial county of Essex, England. It lies on the north bank of the River Thames immediately east of London and has over 18 miles (29 km) of riverfront including the Port of Tilbury, the principal port for London. Thurrock is within the London commuter belt and is an area of regeneration within the Thames Gateway redevelopment zone. The borough includes the northern ends of the Dartford Crossing.

Tilbury is a port town in the borough of Thurrock, Essex, England. The present town was established as separate settlement in the late 19th century, on land that was mainly part of Chadwell St Mary. It contains a 16th century fort and an ancient cross-river ferry. Tilbury is part of the Port of London with a major deep-water port which contributes to the local economy. Situated 24 miles (38.5 km) east of central London and 23 miles (37 km) southwest of Southend-on-Sea, it is also the southernmost point in Essex.