PLUMPTON, a township, joint with Westby, in the parish of KIRKHAM, hundred of AMOUNDERNESS, county palatine of LANCASTER, 3 miles (W. by N.) from'Kirkham. The population is returned with Westby. There is a place of worship for Wesleyan Methodists. This place was celebrated, no less than five centuries ago, for its mines of iron, and a considerable quantity of ore is still obtained at Whitrigs, in the neighbourhood.