Metropolitan Halifax is the urban concentration surrounding Halifax Harbour, including the Halifax Peninsula, the core of Dartmouth, and the Bedford-Sackville areas. It is the Statistics Canada population centre of Halifax; which spans , and has 316,701 people. The population density of the population centre is .The dense urban core is centred on the Halifax Peninsula and the area of Dartmouth inside of the Circumferential Highway. The suburban area stretches into areas known as Mainland Halifax to the west, Cole Harbour to the east, and Bedford, Lower Sackville and Windsor Junction areas to the north.