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'.
Loving County, Texas of 2000. However, as of 2010, this is no longer true. The county had been the least populous county in the United States, with a 2010 census population of only 82 persons (an increase of 22.4% over the 2000 figure of 67 residents), but the 2015 estimate by the US Census Bureau places it as the second least populous county in the US. With an average of only 0.0646 inhabitants/km (0.167/sq mi) as of 2015, the county is also the least densely populated county outside of Alaska. (Lake and Peninsula Borough and North Slope Borough in Alaska are both lower,