It lies on the left bank of the river Wey, on the southern slope of a hill rising about 700 ft.
Pop. of urban district (1901) 5479ï¿½ It has a pleasant undulating site near the headwaters of the river Wey.
Winding in a south-easterly direction, it passes Eton and Windsor (434),(434), Datchet (412), Staines (36), Chertsey (32), Shepperton (30) and Sunbury (262), receiving the Coln from the left at Staines, and the Wey from the right near Shepperton.
Navigation is also carried on by the Medway to Tonbridge, on the lower parts of the Darent and Cray, from Dartford and Crayford, and on the Wey up to Guildford and Godalming.
It is formed of Weymouth, a fishing town and seaport on the southwest of the Wey, and Melcombe Regis on the north-east of the river, the two towns being contiguous The situation on Weymouth Bay, which is enclosed to the south by the Isle of Portland, and north by the eastward trend of the coast, is picturesque.