Norfolk (/ˈnɔːrfək/) is a county in East Anglia in England. It borders Lincolnshire to the northwest, Cambridgeshire to the west and southwest, and Suffolk to the south. Its northern and eastern boundaries are the North Sea and to the northwest, The Wash. The county town is the city of Norwich. With an area of 2,074 square miles (5,370 km²) and a population of 859,400, Norfolk is a largely rural county with a population density of 401 per square mile (155 per km²). Of the county's population, 40% live in four major built up areas: Norwich (213,000), Great Yarmouth (63,000), King's Lynn (46,000) and Thetford (25,000).