Northumberland 1542 and Hexhamshire in 1572. Islandshire, Bedlingtonshire and Norhamshire were incorporated into Northumberland in 1844. Tynemouth and other settlements in North Tyneside were transferred to Tyne and Wear in 1974 under the Local Government Act 1972. Lying on the Anglo-Scottish border, Northumberland has been the site of a number of battles. The county is noted for its undeveloped landscape of high moorland, now largely protected as the Northumberland National Park. Northumberland is the least densely populated county in England, with only 62 people per square kilometre. Northumberland originally meant 'the land of the people living north of the River Humber'.
Essex County, New Jersey Based on data from the 2010 census, Essex County is the 14th-most densely populated county in the United States, and was ranked second in the state after Hudson County (which ranked sixth in the nation at 13,731.4 per square mile). Newark, with a population density of 11,458.3 people/square mile, is the largest municipality in the county both in terms of land area (24.19 square miles) and population (277,140), while Caldwell is the smallest in terms of land area (1.17 square miles) and Essex Fells has the smallest population (2,113). Many of the county's smallest municipalities have population densities that are