How Many Counties Are in the British Isles?

The term "British Isles" is a geographical designation, not an administrative one, so it has no counties. The islands comprise four countries:

• England (UK constituent)
• Scotland (UK constituent)
• Wales (UK constituent)
• Ireland (Republic of Ireland + Northern Ireland)

Each country has its own subnational divisions (counties, council areas, etc.), but there is no unified county system for the British Isles as a whole.