Westhumble /wɛstˈhʌmbəl/ is a clustered village centred 2 km (1.2 mi) north of Dorking in Surrey, England, in the parish of Mickleham but without a civil parish.The area is served by Box Hill & Westhumble railway station.At the start of a wide belt of country fields, meadows and National Trust landmarks, such as Box Hill and Polesden Lacey by its borders, Westhumble is a focus for ramblers, it was never a historic parish in its own right and remains a chapelry (and in old-fashioned language, a hamlet) of Mickleham, which is across the river, north-east.