A darker shade indicates a higher level of integration in international organisations.
This list depicts the membership of European countries in selected international organisations and treaties.
State (51)[ 1]
HDI [ 2]
GNI [ 3]
GDP [ 4]
UN [ 5]
CoE [ 6]
OSCE [ 7]
EU [ 8]
EEA [ 9]
EUCU [ 10]
Schengen [ 11]
€ [ 12]
NATO [ 13]
OECD [ 14]
ESA [ 15]
WTO [ 16]
ICC [ 17]
VWP [ 18]
Albania
0.810
7,570
10,527
UN
CoE
OSCE
Candidate negotiating
ALL
NATO
WTO
ICC
Andorra
0.913
50,080
45,263
UN
CoE
OSCE
EUCU 1
Schengen 2
€ 4
Observer
ICC
VWP
Armenia
0.811
7,330
8,857
UN
CoE
OSCE
AMD
PfP
WTO
ICC
Austria
0.930
63,140
58,192
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
PfP
OECD
ESA
WTO
ICC
VWP
Azerbaijan
0.789
6,680
7,604
UN
CoE
OSCE
AZN
PfP
Observer
Belarus
0.824
7,780
7,875
UN
OSCE
BYR
Observer
Belgium
0.951
54,530
57,772
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA
WTO
ICC
VWP
Bosnia and Herzegovina
0.804
8,160
8,362
UN
CoE
OSCE
Candidate
BAM
MAP
Observer
ICC
Bulgaria
0.845
14,460
18,522
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
BGN 6
NATO
Candidate
ECS
WTO
ICC
Croatia
0.889
20,670
25,674
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
Candidate
ECS
WTO
ICC
VWP
Cyprus
0.913
30,990
41,132
UN
CoE
OSCE
EU
EEA
EUCU
EU EEA CH freedom of movement
€
ECS
WTO
ICC
Czechia
0.915
27,110
33,039
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
CZK
NATO
OECD
ESA
WTO
ICC
VWP
Denmark
0.962
73,360
74,969
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
DKK 6
NATO
OECD
ESA
WTO
ICC
VWP
Estonia
0.905
27,240
32,760
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA
WTO
ICC
VWP
Finland
0.948
53,390
54,163
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA
WTO
ICC
VWP
France
0.920
45,070
46,792
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA
WTO
ICC
VWP
Georgia
0.844
6,680
9,571
UN
CoE
OSCE
Candidate
GEL
PfP
WTO
ICC
Germany
0.959
53,970
55,911
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA
WTO
ICC
VWP
Greece
0.908
22,580
25,756
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA
WTO
ICC
VWP
Hungary
0.870
19,820
24,809
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
HUF
NATO
OECD
ESA
WTO
ICC
VWP
Iceland
0.972
79,840
90,284
UN
CoE
OSCE
EEA
Schengen
ISK
NATO
OECD
WTO
ICC
VWP
Ireland
0.949
80,390
108,919
UN
CoE
OSCE
EU
EEA
EUCU
EU EEA CH freedom of movement
€
PfP
OECD
ESA
WTO
ICC
VWP
Italy
0.915
38,200
41,091
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA
WTO
ICC
VWP
Kazakhstan
0.837
10,940
14,768
UN
OSCE
KZT
PfP
WTO
Kosovo
n/d
5,980
7,147
Applicant
Applicant
€ 5
Latvia
0.889
21,970
24,374
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA AM
WTO
ICC
VWP
Liechtenstein
0.938
116,600
n/d
UN
CoE
OSCE
EEA
Schengen
CHF
WTO
ICC
VWP
Lithuania
0.895
24,820
30,835
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA AM
WTO
ICC
VWP
Luxembourg
0.922
88,370
140,941
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA
WTO
ICC
VWP
Malta
0.924
34,240
45,735
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
PfP
Applicant
ECS
WTO
ICC
VWP
Moldova
0.785
6,110
8,260
UN
CoE
OSCE
Candidate negotiating
MDL
PfP
WTO
ICC
Monaco
n/d
n/d
n/d
UN
CoE
OSCE
EUCU 1
Schengen 2
€ 4
Signatory
VWP
Montenegro
0.862
11,500
13,508
UN
CoE
OSCE
Candidate negotiating
€ 5
NATO
WTO
ICC
Netherlands
0.955
60,670
70,480
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA
WTO
ICC
VWP
North Macedonia
0.815
7,660
9,882
UN
CoE
OSCE
Candidate negotiating
MKD
NATO
WTO
ICC
Norway
0.970
102,460
89,694
UN
CoE
OSCE
EEA
Schengen
NOK
NATO
OECD
ESA
WTO
ICC
VWP
Poland
0.906
19,730
26,805
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
PLN
NATO
OECD
ESA
WTO
ICC
VWP
Portugal
0.890
26,270
30,002
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA
WTO
ICC
VWP
Romania
0.845
16,670
21,421
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
RON
NATO
Candidate
ESA
WTO
ICC
Russia
0.832
14,250
14,258
UN
OSCE
₽
WTO
San Marino
0.915
47,120
59,603
UN
CoE
OSCE
EUCU 1
Schengen 2
€ 4
ICC
VWP
Serbia
0.833
10,030
14,174
UN
CoE
OSCE
Candidate negotiating
RSD
PfP
Observer
ICC
Slovakia
0.880
22,790
27,130
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA AM
WTO
ICC
VWP
Slovenia
0.931
30,620
35,332
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA
WTO
ICC
VWP
Spain
0.918
32,180
36,192
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
€
NATO
OECD
ESA
WTO
ICC
VWP
Sweden
0.959
61,650
58,100
UN
CoE
OSCE
EU
EEA
EUCU
Schengen
SEK
NATO
OECD
ESA
WTO
ICC
VWP
Switzerland
0.970
95,160
104,896
UN
CoE
OSCE
bilat 3
Schengen
CHF
PfP
OECD
ESA
WTO
ICC
VWP
Turkey
0.853
11,650
16,709
UN
CoE
OSCE
Candidacy suspended
EUCU 1
TRY
NATO
OECD
WTO
Ukraine
0.779
5,070
6,261
UN
CoE
OSCE
Candidate negotiating
UAH
Applicant
Applicant
WTO
ICC
United Kingdom
0.946
47,800
54,949
UN
CoE
OSCE
£
NATO
OECD
ESA
WTO
ICC
VWP
Vatican City
n/d
n/d
n/d
Observer
Observer
OSCE
Schengen 2
€ 4
Observer
Classification of countries according to the United Nations:
Very high human development (0.800 or higher)
High human development (0.700 - 0.799)
Classification of countries according to the World Bank:
high income (> $14,005)
upper middle income ($4,516 - $14,005)
Classification of countries according to the IMF:
Advanced Economies
Emerging Market and Developing Economies
1 These countries are currently not participating in the EU's single market (EEA), but the EU has common external Customs Union agreements with Turkey (EU-Turkey Customs Union in force since 1995), Andorra (since 1991) and San Marino (since 2002). Monaco participates in the EU customs union through its relationship with France; its ports are administered by the French. Vatican City has a customs union in effect with Italy.
2 Andorra, Monaco, San Marino and Vatican City are not members of Schengen, but act as such via their open borders with Spain, France and Italy, respectively.
3 Switzerland is not an official member of EEA but has bilateral agreements largely with the same content, making it virtually a member.
4 Andorra, Monaco, San Marino and Vatican City are using the euro as their currency through a monetary agreement with the EU.
5 Montenegro and Kosovo unilaterally adopted the euro as their currency and, therefore, have no issuing rights.
6 Currency included in the ERM II mechanism.
^ Only 51 sovereign states are listed, including Kosovo and Vatican which are not UN members.
^ Human Development Index (2025)
^ Gross National Income , List of countries by GNI per capita World Development Indicators database [1] , World Bank,
GNI per capita (2025), Atlas method and PPP
^ GDP (nominal) per capita IMF estimate (2025)
^ The United Nations is a world-wide organisation with 193 members , see also; Universal Declaration of Human Rights
^ Council of Europe is numbering 47 out of 51 European countries and membership is open to all European states which seek European integration , accept the principle of the rule of law and are able and willing to guarantee democracy , fundamental human rights and freedoms with European Court of Human Rights and European Convention on Human Rights , see also European Higher Education Area
^ OSCE is an international organization which serves as a forum for political dialogue. Its stated aim is to secure stability in the region (Caucasus , Central Asia , Europe , North America and Russia ) based on democratic practices and improved governance
^ Number of countries in Trade bloc : EU (27), EFTA (4), CEFTA (7), other regional blocs (not listed because countries inside are likely, sooner or later, to join EU, some already seriously involved in joining processes); EFTA countries and 4 European microstates marked x, while not EU members, are partially integrated in EU through euro currency, Schengen treaty , EU single market - EEA and Customs Union , see also;European Neighbourhood Policy , Eastern Partnership , Euromediterranean Partnership , Mediterranean Union , Transatlantic Free Trade Area , Eurosphere
^ European Economic Area , see also; Free trade areas in Europe
^ European Union Customs Union
^ Schengen Area
^ Eurozone
^ Number of countries inside military alliance ; NATO (30); see also; NATO Cooperation with non-member states , Treaty on Conventional Armed Forces in Europe and Shanghai Cooperation Organisation
^ OECD is an international organization which serves as a forum for economic dialogue. The bulk of its members are in Europe (23), but some are located in other regions (7) - Members states
^ European Space Agency - Member states
^ WTO - Members and Observers Monaco, San Marino, Kosovo - no official interaction with the WTO, Vatican (Holy See) - special observer status
^ International Criminal Court 39 members from Europe
^ VWP is a program of the United States of America which allows citizens of countries with visa refusal rate less than 3% and some specific countries 10% to travel to the US for tourism or business for up to 90 days without having to obtain a visa . All countries participating in the program have high HDI and most are regarded as developed countries ; Adjusted Visa Refusal Rate Archived 2013-04-05 at the Wayback Machine year 2006 Archived 2013-04-05 at the Wayback Machine , 2007 Archived 2009-02-26 at the Wayback Machine , 2008 Archived 2011-06-22 at the Wayback Machine