From the northernmost point (Malin Head) to the southernmost point (Mizen Head) the length of Ireland is 302 miles (486 km).
The answer would be highly dependent on the mode of travel.
As the crow flies, Malin Head and Mizen Head are about 466 kilometres or 290 miles from each other. By road it is about 555 kilometres or 345 miles.
From Mizen Head, the most southerly point, to Malin head, the most northerly point, is about 365 miles or 590 kilometres.
900
What you are referring to is the Republic of Ireland. The term southern Ireland is often used for it purely to distinguish it from Northern Ireland, although in fact the most northerly point of the island of Ireland is in the Republic of Ireland and not Northern Ireland. The Republic of Ireland is about 70,273 square kilometres or 27,133 square miles.
Northern Ireland Northern Ireland is a part of The United Kingdom of Great Britain and Northern Ireland. Its area is about 5459 square miles or 12,843 square kilometres, approximately one sixth of the island of Ireland. It's population is about 1,685,000.
four miles
blackrock is just south of dublin in the republic of ireland Blackrock is also in County Louth, a few miles from Dundalk. There are two "Blackrock" towns in the Republic of Ireland.
Northern Ireland is roughly 2000 miles from Tenerife.
Northern Ireland's area is 5,345 sq miles (13,843 km²).
Saturn's distance from the Sun in miles is 891 million miles.
Northern Ireland is about 80 miles west of the northern part of England.
Mauritius is about 10,300 kilometres or 6,400 miles from Northern Ireland.
Northern Ireland is 5,345 sq miles (13,843 km²).
About 152 miles or 254 kilometres.
54 miles from northern to southern Hawaii