List of Members countries of the United Nations with date of joining.
No Country Joined UNO
| 193 | South Sudan | 2011 |
| 192 | Montenegro | 2006 |
| 191 | Switzerland | 2002 |
| 190 | East Timor | 2002 |
| 189 | Tuvalu | 2000 |
| 188 | Serbia6 | 2000 |
| 187 | Tonga | 1999 |
| 186 | Nauru | 1999 |
| 185 | Kiribati | 1999 |
| 184 | Palau | 1994 |
| 183 | Slovakia3 | 1993 |
| 182 | Monaco | 1993 |
| 181 | Macedonia5 | 1993 |
| 180 | Eritrea | 1993 |
| 179 | Czech Republic3 | 1993 |
| 178 | Andorra | 1993 |
| 177 | Uzbekistan | 1992 |
| 176 | Turkmenistan | 1992 |
| 175 | Tajikistan | 1992 |
| 174 | Slovenia | 1992 |
| 173 | San Marino | 1992 |
| 172 | Moldova | 1992 |
| 171 | Kyrgyzstan | 1992 |
| 170 | Kazakhstan | 1992 |
| 169 | Georgia | 1992 |
| 168 | Croatia | 1992 |
| 167 | Bosnia and Herzegovina | 1992 |
| 166 | Azerbaijan | 1992 |
| 165 | Armenia | 1992 |
| 164 | Micronesia | 1991 |
| 163 | Marshall Islands | 1991 |
| 162 | Lithuania | 1991 |
| 161 | Latvia | 1991 |
| 160 | Korea, South | 1991 |
| 159 | Korea, North | 1991 |
| 158 | Estonia | 1991 |
| 157 | Namibia | 1990 |
| 156 | Liechtenstein | 1990 |
| 155 | Brunei | 1984 |
| 154 | St. Kitts and Nevis | 1983 |
| 153 | Vanuatu | 1981 |
| 152 | Belize | 1981 |
| 151 | Antigua and Barbuda | 1981 |
| 150 | Zimbabwe | 1980 |
| 149 | St. Vincent and the Grenadines | 1980 |
| 148 | St. Lucia | 1979 |
| 147 | Solomon Islands | 1978 |
| 146 | Dominica | 1978 |
| 145 | Vietnam | 1977 |
| 144 | Djibouti | 1977 |
| 143 | Seychelles | 1976 |
| 142 | Samoa | 1976 |
| 141 | Angola | 1976 |
| 140 | Suriname | 1975 |
| 139 | So Tom and Prncipe | 1975 |
| 138 | Papua New Guinea | 1975 |
| 137 | Mozambique | 1975 |
| 136 | Comoros | 1975 |
| 135 | Cape Verde | 1975 |
| 134 | Guinea-Bissau | 1974 |
| 133 | Grenada | 1974 |
| 132 | Bangladesh | 1974 |
| 131 | Germany | 1973 |
| 130 | Bahamas | 1973 |
| 129 | United Arab Emirates | 1971 |
| 128 | Qatar | 1971 |
| 127 | Oman | 1971 |
| 126 | Bhutan | 1971 |
| 125 | Bahrain | 1971 |
| 124 | Fiji | 1970 |
| 123 | Swaziland | 1968 |
| 122 | Mauritius | 1968 |
| 121 | Equatorial Guinea | 1968 |
| 120 | Lesotho | 1966 |
| 119 | Guyana | 1966 |
| 118 | Botswana | 1966 |
| 117 | Barbados | 1966 |
| 116 | Singapore | 1965 |
| 115 | Maldives | 1965 |
| 114 | Gambia | 1965 |
| 113 | Zambia | 1964 |
| 112 | Malta | 1964 |
| 111 | Malawi | 1964 |
| 110 | Kuwait | 1963 |
| 109 | Kenya | 1963 |
| 108 | Uganda | 1962 |
| 107 | Trinidad and Tobago | 1962 |
| 106 | Rwanda | 1962 |
| 105 | Jamaica | 1962 |
| 104 | Burundi | 1962 |
| 103 | Algeria | 1962 |
| 102 | Tanzania | 1961 |
| 101 | Sierra Leone | 1961 |
| 100 | Mongolia | 1961 |
| 99 | Mauritania | 1961 |
| 98 | Togo | 1960 |
| 97 | Somalia | 1960 |
| 96 | Senegal | 1960 |
| 95 | Nigeria | 1960 |
| 94 | Niger | 1960 |
| 93 | Mali | 1960 |
| 92 | Madagascar | 1960 |
| 91 | Gabon | 1960 |
| 90 | Cyprus | 1960 |
| 89 | Cte d’Ivoire | 1960 |
| 88 | Congo, Dem. Rep. of | 1960 |
| 87 | Congo, Rep. of | 1960 |
| 86 | Chad | 1960 |
| 85 | Central African Republic | 1960 |
| 84 | Cameroon | 1960 |
| 83 | Burkina Faso | 1960 |
| 82 | Benin | 1960 |
| 81 | Guinea | 1958 |
| 80 | Malaysia | 1957 |
| 79 | Ghana | 1957 |
| 78 | Tunisia | 1956 |
| 77 | Sudan | 1956 |
| 76 | Morocco | 1956 |
| 75 | Japan | 1956 |
| 74 | Sri Lanka | 1955 |
| 73 | Spain | 1955 |
| 72 | Romania | 1955 |
| 71 | Portugal | 1955 |
| 70 | Nepal | 1955 |
| 69 | Libya | 1955 |
| 68 | Laos | 1955 |
| 67 | Jordan | 1955 |
| 66 | Italy | 1955 |
| 65 | Ireland | 1955 |
| 64 | Hungary | 1955 |
| 63 | Finland | 1955 |
| 62 | Cambodia | 1955 |
| 61 | Bulgaria | 1955 |
| 60 | Austria | 1955 |
| 59 | Albania | 1955 |
| 58 | Indonesia | 1950 |
| 57 | Israel | 1949 |
| 56 | Burma (Myanmar) | 1948 |
| 55 | Yemen | 1947 |
| 54 | Pakistan | 1947 |
| 53 | Thailand | 1946 |
| 52 | Sweden | 1946 |
| 51 | Iceland | 1946 |
| 50 | Afghanistan | 1946 |
| 49 | Venezuela | 1945 |
| 48 | Uruguay | 1945 |
| 47 | United States | 1945 |
| 46 | United Kingdom | 1945 |
| 45 | Ukraine | 1945 |
| 44 | Turkey | 1945 |
| 43 | Syria | 1945 |
| 42 | South Africa | 1945 |
| 41 | Saudi Arabia | 1945 |
| 40 | Russia | 1945 |
| 39 | Poland | 1945 |
| 38 | Philippines | 1945 |
| 37 | Peru | 1945 |
| 36 | Paraguay | 1945 |
| 35 | Panama | 1945 |
| 34 | Norway | 1945 |
| 33 | Nicaragua | 1945 |
| 32 | New Zealand | 1945 |
| 31 | Netherlands | 1945 |
| 30 | Mexico | 1945 |
| 29 | Luxembourg | 1945 |
| 28 | Liberia | 1945 |
| 27 | Lebanon | 1945 |
| 26 | Iraq | 1945 |
| 25 | Iran | 1945 |
| 24 | India | 1945 |
| 23 | Honduras | 1945 |
| 22 | Haiti | 1945 |
| 21 | Guatemala | 1945 |
| 20 | Greece | 1945 |
| 19 | France | 1945 |
| 18 | Ethiopia | 1945 |
| 17 | El Salvador | 1945 |
| 16 | Egypt | 1945 |
| 15 | Ecuador | 1945 |
| 14 | Dominican Republic | 1945 |
| 13 | Denmark | 1945 |
| 12 | Cuba | 1945 |
| 11 | Costa Rica | 1945 |
| 10 | Colombia | 1945 |
| 9 | China2 | 1945 |
| 8 | Chile | 1945 |
| 7 | Canada | 1945 |
| 6 | Brazil | 1945 |
| 5 | Bolivia | 1945 |
| 4 | Belgium | 1945 |
| 3 | Belarus | 1945 |
| 2 | Australia | 1945 |
| 1 | Argentina | 1945 |