County Londonderry

County Londonderry (also known as Derry) is one of the six historic counties of Northern Ireland. Its main town is the City of Derry / Londonderry.

Most local government functions are now provided by the following district councils:
 * City of Derry
 * Limavady
 * Magherafelt
 * most of Coleraine
 * a small part of Cookstown.