Comparative area: slightly larger than West Virginia
Land boundary: 360 km with UK
Coastline: 1,448 km
Maritime claims:
Continental shelf: no precise definition;
Exclusive fishing zone: 200 nm;
Territorial sea: 12 nm
Disputes: maritime boundary with the UK; Northern Ireland question with the UK; Rockall continental shelf dispute involving Denmark, Iceland, and the UK (Ireland and the UK have signed a boundary agreement in the Rockall area)
Climate: temperate maritime; modified by North Atlantic Current; mild winters, cool summers; consistently humid; overcast about half the time
Terrain: mostly level to rolling interior plain surrounded by rugged hills and low mountains; sea cliffs on west coast