Castledawson is a village

Village

A village is a clustered human settlement or community, larger than a hamlet with the population ranging from a few hundred to a few thousand , Though often located in rural areas, the term urban village is also applied to certain urban neighbourhoods, such as the West Village in Manhattan, New...

 in County Londonderry

County Londonderry

The place name Derry is an anglicisation of the old Irish Daire meaning oak-grove or oak-wood. As with the city, its name is subject to the Derry/Londonderry name dispute, with the form Derry preferred by nationalists and Londonderry preferred by unionists...

, Northern Ireland

Northern Ireland

Northern Ireland is one of the four countries of the United Kingdom. Situated in the north-east of the island of Ireland, it shares a border with the Republic of Ireland to the south and west...

. It is mostly within the townland

Townland

A townland or bally is a small geographical division of land used in Ireland. The townland system is of Gaelic origin—most townlands are believed to pre-date the Norman invasion and most have names derived from the Irish language...

 of Shanemullagh , about four miles from the north-western shore of Lough Neagh

Lough Neagh

Lough Neagh, sometimes Loch Neagh, is a large freshwater lake in Northern Ireland. Its name comes .-Geography:With an area of , it is the largest lake in the British Isles and ranks among the forty largest lakes of Europe. Located twenty miles to the west of Belfast, it is approximately twenty...

, and close to the market town of Magherafelt

Magherafelt

Magherafelt is a small town in County Londonderry, Northern Ireland. It had a population of 8,372 people recorded in the 2001 Census. It is the biggest town in the south of County Londonderry and is the social, economic and political hub of the area...

. In 2001 it had a population of 2,089 according to the Census

United Kingdom Census 2001

A nationwide census, known as Census 2001, was conducted in the United Kingdom on Sunday, 29 April 2001. This was the 20th UK Census and recorded a resident population of 58,789,194....

.
Originally, the village was known as "Dawson's Bridge" and had the distinction of having (at one time) the largest single span stone bridge in Ireland

Ireland

Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

. The village was named after its 'castle' (actually a large manor house) built by Joshua Dawson in 1713.