European Union 27 members
European Union has 27 members; together, today’s European Union members had 5.5% of the world’s people and 18% of its GDP in 2025.
Source: Membership: the groupings’ own member listsMembers as of 10 Nov 2026
Source: World Bank Indicators2025
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Summary
The European Union: a political and economic union of 27 countries, founded in 1993 on the communities set up in the 1950s.
Today’s European Union members account for 5.5% of the world’s people (2025), 18% of the world’s GDP (2025), 16% of the world’s military spending (2025) and 6.5% of the world’s CO2 emissions (2024). Together they mine 2.7% of the world’s tungsten (USGS, 2025, estimated). Of its members, 23 are also in NATO, 22 in the OECD, 3 in the G7 and 3 in the G20.
Membership is as each grouping lists it. A grouping’s share of the world adds up its members’ figures, against the sum for every country with a figure.
Source: Membership: the groupings’ own member lists; World Bank; Global Carbon Budget; FAOSTAT; USGSMembers as of 10 Nov 2026
Members
| Germany | 83 m | 19% | $5.05 tn | G7, G20, NATO, OECD |
|---|---|---|---|---|
| France | 69 m | 15% | $3.37 tn | G7, G20, NATO, OECD, UN Security Council (permanent) |
| Italy | 59 m | 13% | $2.55 tn | G7, G20, NATO, OECD |
| Spain | 49 m | 11% | $1.91 tn | NATO, OECD |
| Poland | 36 m | 8.1% | $1.04 tn | NATO, OECD |
| Romania | 19 m | 4.2% | $429 bn | NATO |
| Netherlands | 18 m | 4% | $1.33 tn | NATO, OECD |
| Belgium | 12 m | 2.6% | $725 bn | NATO, OECD |
| Czechia | 11 m | 2.4% | $391 bn | NATO, OECD |
| Portugal | 11 m | 2.4% | $347 bn | NATO, OECD |
| Sweden | 11 m | 2.3% | $669 bn | NATO, OECD |
| Greece | 10 m | 2.3% | $281 bn | NATO, OECD |
| Hungary | 9.5 m | 2.1% | $246 bn | NATO, OECD |
| Austria | 9.2 m | 2% | $579 bn | OECD |
| Bulgaria | 6.4 m | 1.4% | $131 bn | NATO |
| Denmark | 6.0 m | 1.3% | $463 bn | NATO, OECD |
| Finland | 5.6 m | 1.3% | $317 bn | NATO, OECD |
| Ireland | 5.5 m | 1.2% | $722 bn | OECD |
| Slovakia | 5.4 m | 1.2% | $155 bn | NATO, OECD |
| Croatia | 3.9 m | 0.9% | $105 bn | NATO |
| Lithuania | 2.9 m | 0.6% | $95 bn | NATO, OECD |
| Slovenia | 2.1 m | 0.5% | $80 bn | NATO, OECD |
| Latvia | 1.8 m | 0.4% | $49 bn | NATO, OECD |
| Cyprus | 1.4 m | 0.3% | $41 bn | – |
| Estonia | 1.4 m | 0.3% | $47 bn | NATO, OECD |
| Luxembourg | 686,970 | 0.2% | $101 bn | NATO, OECD |
| Malta | 579,704 | 0.1% | $28 bn | – |
Source: Membership: the groupings’ own member lists; World BankMembers as of 10 Nov 20262025