East Williamston is a village and community in Pembrokeshire, Wales, in the south of the county, 4 km west of Saundersfoot. The parish includes the villages of Cold Inn . The community had a population of 1,787 in 2001, increasing to 1,844 at the 2011 Census. With the community of Jeffreyston, it makes up the Pembrokeshire electoral ward of East Williamston, which had a population of 2,327 in 2001, with 11% Welsh speakers.The ward population had increased to 2,418 at the 2011 Census.