The majority of ~67 million British citizens reside in the United Kingdom, comprising four nations:
Global British Diaspora (estimated 200+ million with British ancestry):
| Country | British-Born / Citizens | Notes |
|---|---|---|
| Australia | ~1.2M / ~10M ancestry | Largest overseas British-born population |
| Canada | ~600K / ~10M ancestry | Deep historical ties |
| United States | ~700K / ~30M+ ancestry | Largest ancestry group (often "American") |
| New Zealand | ~215K / ~2.5M ancestry | ~50% have British roots |
| South Africa | ~200K / ~2M ancestry | English-speaking whites |
| Spain | ~400K | Costa del Sol retirees, expats |
| Ireland (Republic) | ~300K | Common Travel Area |
| France, Germany, Portugal | 100K–200K each | EU retirees, professionals |
British communities abroad maintain cultural ties (pubs, schools, clubs) while integrating locally—shaping societies from Sydney to Singapore.