There are 23 Sovereign States in North America:

1. Antigua and Barbuda
2. The Bahamas
3. Barbados
4. Belize
5. Canada
6. Costa Rica
7. Cuba
8. Dominica
9. Dominican Republic
10. El Salvador
11. Grenada
12. Guatemala
13. Haiti
14. Honduras
15. Jamaica
16. Mexico
17. Nicaragua
18. Panama
19. Saint Kitts and Nevis
20. Saint Lucia
21. Saint Vincent and the Grenadines
22. Trinidad and Tobago
23. United States of America

Non-Sovereign Territories in North America:

Anguilla (United Kingdom), Aruba (Netherlands), Bermuda (United Kingdom), Bonaire (Netherlands), British Virgin Islands (United Kingdom), Cayman Islands (United Kingdom), Clipperton Island (France), Curacao (Netherlands), Greenland (Denmark), Guadeloupe (France), Martinique (France), Montserrat (United Kingdom), Navassa Island (United States) Puerto Rico (United States), Saba (Netherlands), Saint Barthelemy (France), Saint Martin (France), Saint Pierre and Miquelon (France), Sint Eustatius (Netherlands), Sint Maarten (Netherlands), Turks and Caicos Islands (United Kingdom), U.S. Virgin Islands (United States)