The World's 26 Federal Countries: A Complete List

Federalism divides power between a central government and constituent states or provinces. As of today, 26 countries operate as federations:

1. Argentina
2. Australia
3. Austria
4. Belgium
5. Bosnia and Herzegovina
6. Brazil
7. Canada
8. Comoros
9. Ethiopia
10. Germany
11. India
12. Iraq
13. Malaysia
14. Mexico
15. Micronesia
16. Nepal
17. Nigeria
18. Pakistan
19. Russia
20. Saint Kitts and Nevis
21. Somalia
22. South Africa
23. Sudan
24. Switzerland
25. United Arab Emirates
26. United States of America

Each federation structures its division of powers differently, but all share the principle of constitutionally guaranteed regional autonomy.