Population&_160;(2006 estimate)
Ulster is composed of nine counties Antrim, Armagh, Down, Fermanagh, Londonderry, and Tyrone are part of Northern Ireland; while Cavan, Donegal, and Monaghan are part of the Republic of Ireland.
The first part of the name Ulster derives from the Irish Cúige Uladh (IPA&_160;['ku?? '?l?u, '?l?i]), meaning "Fifth of the Ulaid". In ancient times, the island was divided into five regions, with the Ulaid tribes inhabiting this northernmost region. The latter part of the name derives either from the Irish tír or the Old Norse staðr, both of which translate as "land" or "territory".
The Irish word for someone/something from Ulster is Ultach. The Latin word for someone/something from Ulster is Ultonian, which derives from the Latin name for the province, Ultonia. Other words that have been used are Ullish and Ulsterman/Ulsterwoman.