Enlargement of the United Nations

Map of the current UN member states by their years of admission.

1945 (original members)

1946–1959

1960–1989

1990–present

non-member observer states

As of April 2015, there are 193 United Nations (UN) member states, 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.

1940s 1
- 1945 (original members) 1.1
- 1946 1.2
- 1947 1.3
- 1948 1.4
- 1949 1.5
1950s 2
- 1950 2.1
- 1955 2.2
- 1956 2.3
- 1957 2.4
- 1958 2.5
1960s 3
- 1960 3.1
- 1961 3.2
- 1962 3.3
- 1963 3.4
- 1964 3.5
- 1965 3.6
- 1966 3.7
- 1967 3.8
- 1968 3.9
1970s 4
- 1970 4.1
- 1971 4.2
- 1973 4.3
- 1974 4.4
- 1975 4.5
- 1976 4.6
- 1977 4.7
- 1978 4.8
- 1979 4.9
1980s 5
- 1980 5.1
- 1981 5.2
- 1983 5.3
- 1984 5.4
1990s 6
- 1990 6.1
- 1991 6.2
- 1992 6.3
- 1993 6.4
- 1994 6.5
- 1999 6.6
2000s 7
- 2000 7.1
- 2002 7.2
- 2006 7.3
2010s 8
- 2011 8.1
Summary 9
See also 10
Notes 11
References 12

1940s

1945 (original members)

The UN officially came into existence on 24 October 1945, after ratification of the 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
Byelorussian SSR → Belarus
Brazil
Chile
China (seat held by the Republic of China) → China (seat transferred to the People's Republic of China) (Resolution 2758)
Cuba
Czechoslovakia → 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] → Egypt
El Salvador
France
Haiti
Iran →
→ →
→ (successor state)
→ (period when merged with )^[A] →
→
→ dissolved (would-be successor state was de facto suspended from the United Nations by SCR 777 and GAR 47/1; current UN members that formerly comprised Yugoslavia: , , , , , and ^[G])

25 October 1945

30 October 1945

31 October 1945

1 November 1945

2 November 1945

5 November 1945

7 November 1945

9 November 1945

13 November 1945

14 November 1945

15 November 1945

21 November 1945

27 November 1945

10 December 1945

17 December 1945

18 December 1945

21 December 1945

27 December 1945

1946

19 November 1946

(SCR 8, GAR 34)
(SCR 8, GAR 34)
(SCR 8, GAR 34)

16 December 1946

(SCR 13, GAR 101) →

1947

30 September 1947

(SCR 29, GAR 108)
(SCR 29, GAR 108) → (unified state after merging with ^[D]

1948

19 April 1948

(SCR 45, GAR 188) →

1949

11 May 1949

(SCR 69, GAR 273)

1950s

1950

28 September 1950

(SCR 86, GAR 491)^[C]

1955

14 December 1955

(all by SCR 109 and GAR 995)

→ → → →
→
(application addressed in 1947 by SCR 24)
(application addressed in 1947 by SCR 25)
→
→ → →

1956

12 November 1956

(SCR 112, GAR 1110)
(SCR 115, GAR 1111)
(SCR 116, GAR 1112)

18 December 1956

(SCR 121, GAR 1113)

1957

8 March 1957

(SCR 124, GAR 1118)

17 September 1957

(SCR 125, GAR 1134) →

1958

22 February 1958

and merge to become the ^[A]

12 December 1958

(SCR 131, GAR 1325)

1960s

1960

20 September 1960

(SCR 133, GAR 1476) → → United Republic of Cameroon →
(SCR 136, GAR 1477)
(SCR 140, GAR 1478)
(SCR 141, GAR 1479)
Congo (Léopoldville) (SCR 142, GAR 1480) → →
(SCR 147, GAR 1481) →
(SCR 148, GAR 1482)
(SCR 149, GAR 1483) →
(SCR 150, GAR 1484) →
(SCR 151, GAR 1485)
(SCR 152, GAR 1486) → →
(SCR 153, GAR 1487)
(SCR 154, GAR 1488) → →
(SCR 155, GAR 1489)

28 September 1960

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

7 October 1960

(SCR 160, GAR 1492)

1961

27 September 1961

(SCR 165, GAR 1623)

27 October 1961

(SCR 166, GAR 1630)
(SCR 167, GAR 1631)

14 December 1961

(SCR 170, GAR 1667) → (after merging with )^[B]

1962

18 September 1962

(SCR 172, GAR 1748)
(SCR 173, GAR 1749)
(SCR 174, GAR 1750)
(SCR 175, GAR 1751)

8 October 1962

(SCR 176, GAR 1754)

25 October 1962

(SCR 177, GAR 1758)

1963

14 May 1963

(GAR 1872)

16 December 1963

(SCR 184, GAR 1975) → merged with (now )^[B]
(SCR 185, GAR 1976)

1964

1 December 1964

(SCR 195, General Assembly decision)
(SCR 196, General Assembly decision)
(SCR 197, General Assembly decision)

1965

20 January 1965

withdraws from the United Nations^[C]

21 September 1965

(SCR 200, GAR 2008)
(SCR 212, GAR 2009)
(SCR 213, GAR 2010)

1966

20 September 1966

(SCR 223, GAR 2133)

28 September 1966

rejoins the United Nations^[C]

17 October 1966

(SCR 224, GAR 2136)
(SCR 225, GAR 2137)

9 December 1966

(SCR 230, GAR 2175)

1967

14 December 1967

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

1968

24 April 1968

(SCR 249, GAR 2371)

24 September 1968

(SCR 257, GAR 2376)

12 November 1968

(SCR 260, GAR 2384)

1970s

1970

13 October 1970

(SCR 287, GAR 2622)

1971

21 September 1971

(SCR 292, GAR 2751)
(SCR 296, GAR 2752)
(SCR 297, GAR 2753)

7 October 1971

(SCR 299, GAR 2754)

9 December 1971

(SCR 304, GAR 2794)

1973

18 September 1973

(SCR 335, GAR 3050) → (unified state after accession of )^[E]
(SCR 335, GAR 3050) → acceded to (now unified state of )^[E]
(SCR 336, GAR 3051)

1974

17 September 1974

(SCR 351, GAR 3203)
(SCR 352, GAR 3204)
(SCR 356, GAR 3205)

1975

16 September 1975

(SCR 372, GAR 3363)
(SCR 373, GAR 3364)
(SCR 374, GAR 3365) →

10 October 1975

(SCR 375, GAR 3368)

12 November 1975

(SCR 376, GAR 3385)

4 December 1975

(SCR 382, GAR 3413)

1976

21 September 1976

(SCR 394, GAR 31/1)

1 December 1976

(SCR 397, GAR 31/44) →

15 December 1976

(SCR 399, GAR 31/104) →

1977

20 September 1977

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

1978

19 September 1978

(SCR 433, GAR 33/1)

18 December 1978

(SCR 442, GAR 33/107)

1979

18 September 1979

(SCR 453, GAR 34/1)

1980s

1980

25 August 1980

(SCR 477, GAR S-11/1)

16 September 1980

(SCR 464, GAR 35/1)

1981

15 September 1981

(SCR 489, GAR 36/1)

25 September 1981

(SCR 491, GAR 36/3)

11 November 1981

(SCR 492, GAR 36/26)

1983

23 September 1983

(SCR 537, GAR 38/1)

1984

21 September 1984

(SCR 548, GAR 39/1)

1990s

1990

23 April 1990

(SCR 652, GAR S-18/1)

18 September 1990

(SCR 663, GAR 45/1)

1991

17 September 1991

(SCR 702, GAR 46/1)
(SCR 702, GAR 46/1)
(SCR 703, GAR 46/2)
(SCR 704, GAR 46/3)
(SCR 709, GAR 46/4)
(SCR 710, GAR 46/5)
(SCR 711, GAR 46/6)

1992

2 March 1992

(SCR 732, GAR 46/224)
(SCR 735, GAR 46/227)
(SCR 736, GAR 46/225)
(SCR 737, GAR 46/226)
(SCR 738, GAR 46/228)
(SCR 739, GAR 46/223)
(SCR 741, GAR 46/229)
(SCR 742, GAR 46/230)
(SCR 744, GAR 46/231)

22 May 1992

(SCR 753, GAR 46/238)
(SCR 754, GAR 46/236)
(SCR 755, GAR 46/237) →

31 July 1992

(SCR 763, GAR 46/241)

1993

19 January 1993

(SCR 800, GAR 47/222)
(SCR 801, GAR 47/221)

8 April 1993

(provisional reference) (SCR 817, GAR 47/225)

28 May 1993

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

28 July 1993

(SCR 848, GAR 47/232)

1994

15 December 1994

(SCR 963, GAR 49/63)

1999

14 September 1999

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

2000s

2000

5 September 2000

(SCR 1290, GAR 55/1)

1 November 2000

(SCR 1326, GAR 55/12) → → (successor state)

2002

10 September 2002

(SCR 1426, GAR 57/1)

27 September 2002

(SCR 1414, GAR 57/3)

2006

28 June 2006

(SCR 1691, GAR 60/264)

2010s

2011

14 July 2011

(SCR 1999, GAR 65/308)

Summary

Map of the UN member states by the decade of their dates of admission (former member states shown in insets).

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	^[A]82^[A]
1959	0	82
1960	17	99
1961	4	^[A]104^[A]
1962	6	110
1963	3	113
1964	3	^[B]115^[B]
1965	3	^[C]117^[C]
1966	4	^[C]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	^[D][E]159^[D]^[E]
1991	7	166
1992	13	179
1993	6	^[F]184^[F]
1994	1	185
1995–1998	0	185
1999	3	188
2000	2	^[G]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.

References

United Nations

United Nations System

Principal organs	General Assembly (→ President) Security Council (→ Members) Economic and Social Council Secretariat Secretary-General Deputy-Secretary General Under-Secretary-General International Court of Justice Trusteeship Council

Programmes and specialized agencies	FAO ICAO IFAD ILO IMO ITC IPCC IAEA UNIDO ITU UNAIDS SCSL UNCTAD UNCITRAL UNCDF UNDAF UNDG UNDP UNDPI UNEP OzonAction UNEP/GRID-Arendal UNESCO UNFIP UNFPA UN-HABITAT OHCHR UNHCR UNHRC UNICEF UNICRI UNIDIR UNITAR UN-Oceans UNODC UNOPS UNOSAT UNRISD UNRWA UNU UNV UN Women UNWTO UPU WFP WHO WIPO WMO

Principal offices	New York (headquarters) Geneva Nairobi Vienna UN organizations by location

Members / Observers

Full members
Founding members (→ UNSC Permanent members)
Observers
- European Union

History

League of Nations
Four Policemen
Declaration by United Nations
Peacekeeping missions
- history
- timeline
Enlargement

Resolutions

General Assembly
- 66th
- 67th
Security Council
- Cyprus
- Iran
- Iraq
- Israel
- Lebanon
- Nagorno-Karabakh
- North Korea
- Palestine
- Syria
- Western Sahara

Elections

Enlargement of the United Nations