| Country |
Population in Millions |
Members in Euro Parliament |
| Initial countries that joined in 1957 |
| 1. Belgium |
10.2 |
24 |
| 2. France |
59.0 |
78 |
| 3. Germany |
82.0 |
99 |
| 4. Italy |
57.6 |
78 |
| 5. Luxembourg |
0.4 |
6 |
| 6. Netherlands |
15.8 |
27 |
| Joined in 1973 |
| 7. Denmark |
5.3 |
14 |
| 8. Ireland |
3.7 |
13 |
| 9. Britain |
58.3 |
78 |
| Joined in 1981 |
| 10. Greece |
10.5 |
24 |
| Joined in 1986 |
| 11. Portugal |
10.0 |
24 |
| 12. Spain |
39.4 |
54 |
| Joined in 1995 |
| 13. Austria |
8.1 |
18 |
| 14. Finland |
5.2 |
14 |
| 15. Sweden |
8.9 |
19 |
| Joined in May 2004 |
| 16. Cyprus |
0.8 |
6 |
| 17. Czech Republic |
10.3 |
24 |
| 18. Estonia |
1.4 |
6 |
| 19. Hungary |
10.1 |
24 |
| 20. Latvia |
2.4 |
9 |
| 21. Lithuania |
3.7 |
13 |
| 22. Malta |
0.4 |
5 |
| 23. Poland |
38.7 |
54 |
| 24. Slovak Republic |
5.4 |
14 |
| 25. Slovenia |
2.0 |
7 |
| |
|
|
| Souce: United Kingdom Office of the European Parliament |
