Enlargement of the United Nations

As of 8 February 2025, there are 193 member states in the United Nations (UN), each of which is a member of the United Nations General Assembly.^[1]

The following is a list of United Nations member states arranged in chronological order according to their dates of admission (with the United Nations Security Council resolutions that recommended their admission and the United Nations General Assembly resolutions that admitted them, signified with SCR and GAR, respectively),^[2] including former members. Members denoted with "→" changed their names, had their memberships in the UN continued by a successor state, merged with other members, or were dissolved.

Timeline

1940s

1945 (original members)

The UN officially came into existence on 24 October 1945, after ratification of the United Nations Charter by the five permanent members of the United Nations Security Council (China, France, the Soviet Union, the United Kingdom, and the United States) and a majority of the other signatories.^[3] A total of 51 original members (or founding members) joined that year; 50 of them signed the Charter at the United Nations Conference on International Organization in San Francisco on 26 June 1945, while Poland, which was not represented at the conference, signed it on 15 October 1945.^[4]

24 October 1945

Argentina
Belarus (seat held by the / Byelorussian Soviet Socialist Republic → renamed // Belarus in 1991)
/// Brazil
Chile
China (seat held by the Republic of China [on mainland (1912–1949) and on Taiwan (1949–present)] → seat transferred to the People's Republic of China in 1971)^[H]
/ Cuba
Czechoslovakia (seat held by Third Czechoslovak Republic → Czechoslovak Socialist Republic → Czech and Slovak Federative Republic) → dissolved (current UN members that formerly comprised Czechoslovakia: Czech Republic and Slovakia)^[F]
Denmark
Dominican Republic
Egypt → United Arab Republic (period when merged with Syria) ^[A] → / Arab Republic of Egypt
El Salvador
France (seat held by the Provisional Government of the French Republic → became the French Fourth Republic → reconstituted as the / French Fifth Republic in 1958)
// Haiti
/ Imperial State of Iran → Islamic Republic of Iran
Lebanon
Luxembourg
Dominion of New Zealand → New Zealand
Nicaragua
//// Paraguay
Commonwealth of the Philippines → Third Republic of the Philippines → Philippines under Martial Law → Fourth Republic of the Philippines → Fifth Republic of the Philippines
Poland (Provisional Government of National Unity) → Republic of Poland → Polish People's Republic → Third Polish Republic
/ Saudi Arabia
/ Soviet Union (Union of Soviet Socialist Republics) → / Russian Federation (successor state)
First Syrian Republic → Second Syrian Republic → United Arab Republic (period when merged with Egypt) ^[A] → Syrian Arab Republic → Ba'athist Syria → Syria (transitional government)
Turkey
Ukraine (seat held by the / Ukrainian Soviet Socialist Republic → renamed to / Ukraine in 1991)
United Kingdom of Great Britain and Northern Ireland
// United States of America
Democratic Federal Yugoslavia → Federal People's Republic of Yugoslavia → Socialist Federal Republic of Yugoslavia → dissolved (would-be successor state Federal Republic of Yugoslavia was de facto suspended from the United Nations by SCR 777 and GAR 47/1; current UN members that formerly comprised Yugoslavia: Bosnia and Herzegovina, Croatia, Montenegro, North Macedonia, Serbia, and Slovenia^[G])

25 October 1945

Kingdom of Greece → / Hellenic Republic

30 October 1945

India → Dominion of India → Republic of India

31 October 1945

Peru

1 November 1945

Australia

2 November 1945

5 November 1945

Colombia

7 November 1945

/ Mexico
Union of South Africa → / South Africa

9 November 1945

// Canada

13 November 1945

14 November 1945

Republic of Bolivia → Plurinational State of Bolivia

15 November 1945

/ Republic of Venezuela → / Bolivarian Republic of Venezuela

21 November 1945

Guatemala

27 November 1945

Norway

10 December 1945

Netherlands

17 December 1945

// Honduras

18 December 1945

Uruguay

21 December 1945

/ Ecuador
Kingdom of Iraq → / Iraqi Republic → / Ba'athist Iraq → // Iraq

27 December 1945

Belgium

1946

19 November 1946 (all by SCR 8 and GAR 34)

Kingdom of Afghanistan → Republic of Afghanistan → /Democratic Republic of Afghanistan → Islamic State of Afghanistan → / Islamic Republic of Afghanistan^[I]
Iceland
Sweden

16 December 1946

Siam (SCR 13, GAR 101) → Thailand

1947

30 September 1947 (all by SCR 29 and GAR 108)

Dominion of Pakistan → Islamic Republic of Pakistan
Mutawakkilite Kingdom of Yemen → North Yemen → Yemen (unified state after merging with South Yemen)^[D]

1948

19 April 1948

Union of Burma (SCR 45, GAR 188) → Socialist Republic of the Union of Burma → Union of Myanmar → Myanmar

1949

11 May 1949

Israel (SCR 69, GAR 273)

1950s

1950

28 September 1950

Indonesia (SCR 86, GAR 491)^[C]

1955

14 December 1955 (all by SCR 109 and GAR 995)

Albania → / Republic of Albania
Austria
// Bulgaria → Republic of Bulgaria
Cambodia → Khmer Republic → Cambodia → Democratic Kampuchea → Coalition Government of Democratic Kampuchea → Cambodia
/ Ceylon → Sri Lanka
Finland
/ Hungary (application addressed in 1947 by SCR 24) → Hungary
Ireland
Italy (application addressed in 1947 by SCR 25)
Jordan
Laos → Lao People's Democratic Republic
Libya → Libyan Arab Republic → Libyan Arab Jamahiriya → Libya
Nepal → Federal Democratic Republic of Nepal
Second Republic of Portugal → Third Republic of Portugal
Romanian People's Republic → Socialist Republic of Romania → Romania
Spain → / Kingdom of Spain

1956

12 November 1956

Sudan (SCR 112, GAR 1110) → Republic of the Sudan
Morocco (SCR 115, GAR 1111)
Tunisia (SCR 116, GAR 1112)

18 December 1956

/ Japan (SCR 121, GAR 1113)

1957

8 March 1957

Dominion of Ghana → // Ghana (SCR 124, GAR 1118)

17 September 1957

Federation of Malaya (SCR 125, GAR 1134) → Malaysia

1958

22 February 1958

Egypt and Syria merge to become the United Arab Republic^[A]

12 December 1958

Guinea (SCR 131, GAR 1325)

1960s

1960

20 September 1960

Cameroun (SCR 133, GAR 1476) → Cameroon → United Republic of Cameroon → Cameroon
Togo (SCR 136, GAR 1477)
Malagasy Republic (SCR 140, GAR 1478) → Madagascar
Somalia (SCR 141, GAR 1479)
// Democratic Republic of Congo (SCR 142, GAR 1480) → Zaire → // Democratic Republic of the Congo
Dahomey (SCR 147, GAR 1481) → People's Republic of Benin → Benin
Niger (SCR 148, GAR 1482)
Upper Volta (SCR 149, GAR 1483) → Burkina Faso
Ivory Coast (SCR 150, GAR 1484) → Côte d'Ivoire
Chad (SCR 151, GAR 1485)
Congo (SCR 152, GAR 1486) → People's Republic of the Congo → Republic of the Congo
Gabon (SCR 153, GAR 1487)
Central African Republic (SCR 154, GAR 1488) → Central African Empire → Central African Republic
/ Cyprus (SCR 155, GAR 1489)

28 September 1960

Senegal (SCR 139 and SCR 158, GAR 1490)
Mali (SCR 139 and SCR 159, GAR 1491)

7 October 1960

Nigeria (SCR 160, GAR 1492)

1961

27 September 1961

Sierra Leone (SCR 165, GAR 1623)

27 October 1961

Mongolian People's Republic (SCR 166, GAR 1630) → / Mongolia
/ Mauritania (SCR 167, GAR 1631)

14 December 1961

Tanganyika (SCR 170, GAR 1667) → United Republic of Tanzania (after merging with Zanzibar)^[B]

1962

18 September 1962

/ Rwanda (SCR 172, GAR 1748)
// Burundi (SCR 173, GAR 1749)
Jamaica (SCR 174, GAR 1750)
Trinidad and Tobago → Trinidad and Tobago (SCR 175, GAR 1751)

8 October 1962

Algeria (SCR 176, GAR 1754)

25 October 1962

/ Uganda (SCR 177, GAR 1758)

1963

14 May 1963

Kuwait (GAR 1872)

16 December 1963

Sultanate of Zanzibar (SCR 184, GAR 1975) → / People's Republic of Zanzibar → merged with Tanganyika (now United Republic of Tanzania)^[B]
Kenya (SCR 185, GAR 1976)

1964

1 December 1964

// Malawi (SCR 195, General Assembly decision)
State of Malta → Malta (SCR 196, General Assembly decision)
/ Zambia (SCR 197, General Assembly decision)

1965

20 January 1965

Indonesia withdraws from the United Nations^[C]

21 September 1965

The Gambia (SCR 200, GAR 2008)
Maldives (SCR 212, GAR 2009)
Singapore (SCR 213, GAR 2010)

1966

20 September 1966

Guyana (SCR 223, GAR 2133)

28 September 1966

Indonesia rejoins the United Nations^[C]

17 October 1966

Botswana (SCR 224, GAR 2136)
// Lesotho (SCR 225, GAR 2137)

9 December 1966

Barbados (SCR 230, GAR 2175)

1967

14 December 1967

South Yemen (SCR 243, GAR 2310) → merged with North Yemen (now unified state of Yemen)^[D]

1968

24 April 1968

Mauritius (SCR 249, GAR 2371)

24 September 1968

Swaziland (SCR 257, GAR 2376) → Eswatini

12 November 1968

Equatorial Guinea (SCR 260, GAR 2384)

1970s

1970

13 October 1970

Dominion of Fiji → Fiji (SCR 287, GAR 2622)

1971

21 September 1971

Bhutan (SCR 292, GAR 2751)
// Bahrain (SCR 296, GAR 2752)
Qatar (SCR 297, GAR 2753)

7 October 1971

/ Oman (SCR 299, GAR 2754)

25 October 1971

China's seat at the United Nations transferred from the Republic of China to the People's Republic of China. (GAR 2758)^[H]

9 December 1971

United Arab Emirates (SCR 304, GAR 2794)

1973

18 September 1973

Federal Republic of Germany (SCR 335, GAR 3050) → Germany (unified state after accession of German Democratic Republic)^[E]
German Democratic Republic (SCR 335, GAR 3050) → acceded to Federal Republic of Germany (now unified state of Germany)^[E]
The Bahamas (SCR 336, GAR 3051)

1974

17 September 1974

Bangladesh (SCR 351, GAR 3203)
Grenada (SCR 352, GAR 3204)
Guinea-Bissau (SCR 356, GAR 3205)

1975

16 September 1975

/ Cape Verde (SCR 372, GAR 3363)
São Tomé and Príncipe (SCR 373, GAR 3364)
// People's Republic of Mozambique (SCR 374, GAR 3365) → Mozambique

10 October 1975

Papua New Guinea (SCR 375, GAR 3368)

12 November 1975

Comoros, State of (SCR 376, GAR 3385) → // Federal and Islamic Republic of Comoros → Union of the Comoros

4 December 1975

Suriname (SCR 382, GAR 3413)

1976

21 September 1976

// Seychelles (SCR 394, GAR 31/1)

1 December 1976

People's Republic of Angola (SCR 397, GAR 31/44) → Republic of Angola

15 December 1976

Western Samoa (SCR 399, GAR 31/104) → Samoa

1977

20 September 1977

Djibouti (SCR 412, GAR 32/1)
Vietnam (SCR 413, GAR 32/2)

1978

19 September 1978

Solomon Islands (SCR 433, GAR 33/1)

18 December 1978

/// Dominica (SCR 442, GAR 33/107)

1979

18 September 1979

/ Saint Lucia (SCR 453, GAR 34/1)

1980s

1980

25 August 1980

Zimbabwe (SCR 477, GAR S-11/1)

16 September 1980

// Saint Vincent and the Grenadines (SCR 464, GAR 35/1)

1981

15 September 1981

Vanuatu (SCR 489, GAR 36/1)

25 September 1981

/ Belize (SCR 491, GAR 36/3)

11 November 1981

Antigua and Barbuda (SCR 492, GAR 36/26)

1983

23 September 1983

Saint Kitts and Nevis (SCR 537, GAR 38/1)

1984

21 September 1984

Brunei Darussalam (SCR 548, GAR 39/1)

1990s

1990

23 April 1990

Namibia (SCR 652, GAR S-18/1)

18 September 1990

Liechtenstein (SCR 663, GAR 45/1)

1991

17 September 1991

/ Democratic People's Republic of Korea (SCR 702, GAR 46/1)
// Republic of Korea (SCR 702, GAR 46/1)
Federated States of Micronesia (SCR 703, GAR 46/2)
Marshall Islands (SCR 704, GAR 46/3)
Estonia (SCR 709, GAR 46/4)
Latvia (SCR 710, GAR 46/5)
/ Lithuania (SCR 711, GAR 46/6)

1992

2 March 1992

// Kazakhstan (SCR 732, GAR 46/224)
Armenia (SCR 735, GAR 46/227)
// Kyrgyzstan (SCR 736, GAR 46/225)
Uzbekistan (SCR 737, GAR 46/226)
/ Tajikistan (SCR 738, GAR 46/228)
Moldova (SCR 739, GAR 46/223)
/// Turkmenistan (SCR 741, GAR 46/229)
/ Azerbaijan (SCR 742, GAR 46/230)
/ San Marino (SCR 744, GAR 46/231)

22 May 1992

Croatia (SCR 753, GAR 46/238)
Slovenia (SCR 754, GAR 46/236)
Republic of Bosnia and Herzegovina (SCR 755, GAR 46/237) → / Bosnia and Herzegovina

31 July 1992

/ Georgia (SCR 763, GAR 46/241)

1993

19 January 1993

Slovakia (SCR 800, GAR 47/222)
Czech Republic (SCR 801, GAR 47/221)

8 April 1993

/ Former Yugoslav Republic of Macedonia (SCR 817, GAR 47/225) → North Macedonia

28 May 1993

/ Eritrea (SCR 828, GAR 47/230)
Monaco (SCR 829, GAR 47/231)

28 July 1993

Andorra (SCR 848, GAR 47/232)

1994

15 December 1994

Palau (SCR 963, GAR 49/63)

1999

14 September 1999

Kiribati (SCR 1248, GAR 54/1)
Nauru (SCR 1249, GAR 54/2)
Tonga (SCR 1253, GAR 54/3)

2000s

2000

5 September 2000

Tuvalu (SCR 1290, GAR 55/1)

1 November 2000

Federal Republic of Yugoslavia (SCR 1326, GAR 55/12) → Serbia and Montenegro → / Serbia (successor state)

2002

10 September 2002

Switzerland (SCR 1426, GAR 57/1)

27 September 2002

East Timor (SCR 1414, GAR 57/3)

2006

28 June 2006

Montenegro (SCR 1691, GAR 60/264)

2010s

2011

14 July 2011

South Sudan (SCR 1999, GAR 65/308)

Summary

Below is a summary of the growth in UN membership.^[5]

Year	# of admissions	# of members
1945	51	51
1946	4	55
1947	2	57
1948	1	58
1949	1	59
1950	1	60
1951–1954	0	60
1955	16	76
1956	4	80
1957	2	82
1958	1	82^[A]
1959	0	82
1960	17	99
1961	4	104^[A]
1962	6	110
1963	3	113
1964	3	115^[B]
1965	3	117^[C]
1966	4	122^[C]
1967	1	123
1968	3	126
1969	0	126
1970	1	127
1971	5	132
1972	0	132
1973	3	135
1974	3	138
1975	6	144
1976	3	147
1977	2	149
1978	2	151
1979	1	152
1980	2	154
1981	3	157
1982	0	157
1983	1	158
1984	1	159
1985–1989	0	159
1990	2	159^[D]^[E]
1991	7	166
1992	13	179
1993	6	184^[F]
1994	1	185
1995–1998	0	185
1999	3	188
2000	2	189^[G]
2001	0	189
2002	2	191
2003–2005	0	191
2006	1	192
2007–2010	0	192
2011	1	193
2012–present	0	193

Notes

^ ^{a b c d e}
Egypt and Syria merged to form the United Arab Republic on 22 February 1958. They resumed as separate UN members on 13 October 1961 after Syria resumed its status as an independent state.
^ ^{a b c}
Tanganyika and Zanzibar merged to form the United Republic of Tanganyika and Zanzibar on 26 April 1964, which later changed its name to the United Republic of Tanzania.
^ ^{a b c d e}
Indonesia temporarily withdrew from the UN on 20 January 1965. It announced its intention "to resume full cooperation with the United Nations and to resume participation in its activities" on 19 September 1966, and was invited to rejoin the UN on 28 September 1966.
^ ^{a b c}
Yemen and Democratic Yemen merged on 22 May 1990, see Yemeni unification for details.
^ ^{a b c}
The German Democratic Republic acceded to the Federal Republic of Germany on 3 October 1990, see German reunification for details.
^ ^{a b}
Czechoslovakia ceased to be a UN member on 1 January 1993 after its dissolution into the Czech Republic and Slovakia, see Dissolution of Czechoslovakia for details.
^ ^{a b}
Yugoslavia (referring to the Socialist Federal Republic of Yugoslavia), effectively dissolved by 1992, was removed from the official roster of UN members in 2000 following the admission of Bosnia and Herzegovina, Croatia, Slovenia, Macedonia, and the Federal Republic of Yugoslavia (name later changed to Serbia and Montenegro) as new UN members. For details see Breakup of Yugoslavia and Yugoslav Wars.
^ ^{a b c}
China, officially known then as the Republic of China (ROC) was a founding member of the UN and a permanent member of the Security Council with veto power. In 1949, the ROC government led by the Kuomintang (KMT) lost the Chinese Civil War and retreated to the island of Taiwan. The Chinese Communist Party (CCP) then established the People's Republic of China (PRC) on the Chinese mainland. As such, the political status of the ROC (alongside the territories currently under ROC jurisdiction) are in dispute. Constitutionally, both the ROC and the PRC continue to claim to be the sole legitimate government of the entirety of China (including Taiwan).^[6]^[7]^[8] In 1971, the PRC replaced the ROC as the legitimate representative of "China" at the UN.^[9] The ROC was subsequently expelled from the UN and its organs. Since then, attempts to rejoin the UN were blocked by the PRC and the ROC was forced to use other designations in other international organizations such as the name "Chinese Taipei" in the International Olympic Committee.
^
Afghanistan's UN seat was retained by the deposed Islamic Republic government as the Taliban-led Islamic Emirate government, who controls all of Afghan territory, remains unrecognized.^[10]

References

^ "What are Member States?". United Nations.
^ "Current Member States". United Nations.
^ "History of the United Nations". United Nations.
^ "Founding Member States". United Nations.
^ "Growth in United Nations membership, 1945–present". United Nations. Archived from the original on 12 July 2014.
^ Sarmento, Clara (2009). Eastwards / Westwards: Which Direction for Gender Studies in the 21st Century?. Cambridge Scholars. p. 127. ISBN 9781443808682.
^ Hudson, Christopher (2014). The China Handbook. Routledge. p. 59. ISBN 9781134269662.
^ Rigger, Shelley (2002). Politics in Taiwan: Voting for Reform. Routledge. p. 60. ISBN 9781134692972.
^ Froehlich, Annette; Seffinga, Vincent (2019). The United Nations and Space Security: Conflicting Mandates between UNCOPUOS and the CD. Springer. p. 40. ISBN 9783030060251.
^ Nichols, Michelle (15 December 2022). "Afghan Taliban Administration, Myanmar Junta Not Allowed Into United Nations for Now". Reuters. Archived from the original on 22 December 2022. Retrieved 9 February 2023.

[cnote_A] ^{a b c d e}
Egypt and Syria merged to form the United Arab Republic on 22 February 1958. They resumed as separate UN members on 13 October 1961 after Syria resumed its status as an independent state.

[cnote_B] ^{a b c}
Tanganyika and Zanzibar merged to form the United Republic of Tanganyika and Zanzibar on 26 April 1964, which later changed its name to the United Republic of Tanzania.

[cnote_C] ^{a b c d e}
Indonesia temporarily withdrew from the UN on 20 January 1965. It announced its intention "to resume full cooperation with the United Nations and to resume participation in its activities" on 19 September 1966, and was invited to rejoin the UN on 28 September 1966.

[cnote_D] ^{a b c}
Yemen and Democratic Yemen merged on 22 May 1990, see Yemeni unification for details.

[cnote_E] ^{a b c}
The German Democratic Republic acceded to the Federal Republic of Germany on 3 October 1990, see German reunification for details.

[cnote_F] ^{a b}
Czechoslovakia ceased to be a UN member on 1 January 1993 after its dissolution into the Czech Republic and Slovakia, see Dissolution of Czechoslovakia for details.

[cnote_G] ^{a b}
Yugoslavia (referring to the Socialist Federal Republic of Yugoslavia), effectively dissolved by 1992, was removed from the official roster of UN members in 2000 following the admission of Bosnia and Herzegovina, Croatia, Slovenia, Macedonia, and the Federal Republic of Yugoslavia (name later changed to Serbia and Montenegro) as new UN members. For details see Breakup of Yugoslavia and Yugoslav Wars.

[cnote_H] ^{a b c}
China, officially known then as the Republic of China (ROC) was a founding member of the UN and a permanent member of the Security Council with veto power. In 1949, the ROC government led by the Kuomintang (KMT) lost the Chinese Civil War and retreated to the island of Taiwan. The Chinese Communist Party (CCP) then established the People's Republic of China (PRC) on the Chinese mainland. As such, the political status of the ROC (alongside the territories currently under ROC jurisdiction) are in dispute. Constitutionally, both the ROC and the PRC continue to claim to be the sole legitimate government of the entirety of China (including Taiwan).^[6]^[7]^[8] In 1971, the PRC replaced the ROC as the legitimate representative of "China" at the UN.^[9] The ROC was subsequently expelled from the UN and its organs. Since then, attempts to rejoin the UN were blocked by the PRC and the ROC was forced to use other designations in other international organizations such as the name "Chinese Taipei" in the International Olympic Committee.

[cnote_I] 
Afghanistan's UN seat was retained by the deposed Islamic Republic government as the Taliban-led Islamic Emirate government, who controls all of Afghan territory, remains unrecognized.^[10]

[1] "What are Member States?". United Nations.

[2] "Current Member States". United Nations.

[3] "History of the United Nations". United Nations.

[4] "Founding Member States". United Nations.

[5] "Growth in United Nations membership, 1945–present". United Nations. Archived from the original on 12 July 2014.

[China1-6] Sarmento, Clara (2009). Eastwards / Westwards: Which Direction for Gender Studies in the 21st Century?. Cambridge Scholars. p. 127. ISBN 9781443808682.

[China2-7] Hudson, Christopher (2014). The China Handbook. Routledge. p. 59. ISBN 9781134269662.

[China3-8] Rigger, Shelley (2002). Politics in Taiwan: Voting for Reform. Routledge. p. 60. ISBN 9781134692972.

[China4-9] Froehlich, Annette; Seffinga, Vincent (2019). The United Nations and Space Security: Conflicting Mandates between UNCOPUOS and the CD. Springer. p. 40. ISBN 9783030060251.

[10] Nichols, Michelle (15 December 2022). "Afghan Taliban Administration, Myanmar Junta Not Allowed Into United Nations for Now". Reuters. Archived from the original on 22 December 2022. Retrieved 9 February 2023.

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[F]

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