The World Factbook. 2008.
Suffrage
| Country | Suffrage |
| Afghanistan | 18 years of age; universal |
| Albania | 18 years of age; universal |
| Algeria | 18 years of age; universal |
| American Samoa | 18 years of age; universal |
| Andorra | 18 years of age; universal |
| Angola | 18 years of age; universal |
| Anguilla | 18 years of age; universal |
| Antigua and Barbuda | 18 years of age; universal |
| Argentina | 18 years of age; universal and compulsory |
| Armenia | 18 years of age; universal |
| Aruba | 18 years of age; universal |
| Australia | 18 years of age; universal and compulsory |
| Austria | 16 years of age; universal; note – reduced from 18 years of age in 2007 |
| Azerbaijan | 18 years of age; universal |
| Bahamas, The | 18 years of age; universal |
| Bahrain | 20 years of age; universal |
| Bangladesh | 18 years of age; universal |
| Barbados | 18 years of age; universal |
| Belarus | 18 years of age; universal |
| Belgium | 18 years of age; universal and compulsory |
| Belize | 18 years of age; universal |
| Benin | 18 years of age; universal |
| Bermuda | 18 years of age; universal |
| Bhutan | 18 years of age; universal |
| Bolivia | 18 years of age, universal and compulsory (married); 21 years of age, universal and compulsory (single) |
| Bosnia and Herzegovina | 18 years of age, universal |
| Botswana | 18 years of age; universal |
| Brazil | voluntary between 16 and 18 years of age and over 70; compulsory over 18 and under 70 years of age; note – military conscripts do not vote |
| British Virgin Islands | 18 years of age; universal |
| Brunei | 18 years of age for village elections; universal |
| Bulgaria | 18 years of age; universal |
| Burkina Faso | universal |
| Burma | 18 years of age; universal |
| Burundi | NA years of age; universal (adult) |
| Cambodia | 18 years of age; universal |
| Cameroon | 20 years of age; universal |
| Canada | 18 years of age; universal |
| Cape Verde | 18 years of age; universal |
| Cayman Islands | 18 years of age; universal |
| Central African Republic | 21 years of age; universal |
| Chad | 18 years of age; universal |
| Chile | 18 years of age; universal and compulsory |
| China | 18 years of age; universal |
| Cocos (Keeling) Islands | NA |
| Colombia | 18 years of age; universal |
| Comoros | 18 years of age; universal |
| Congo, Democratic Republic of the | 18 years of age; universal and compulsory |
| Congo, Republic of the | 18 years of age; universal |
| Cook Islands | NA years of age; universal (adult) |
| Costa Rica | 18 years of age; universal and compulsory |
| Cote d’Ivoire | 18 years of age; universal |
| Croatia | 18 years of age; universal (16 years of age, if employed) |
| Cuba | 16 years of age; universal |
| Cyprus | 18 years of age; universal |
| Czech Republic | 18 years of age; universal |
| Denmark | 18 years of age; universal |
| Djibouti | 18 years of age; universal |
| Dominica | 18 years of age; universal |
| Dominican Republic | 18 years of age, universal and compulsory; married persons regardless of age; note – members of the armed forces and national police cannot vote |
| Ecuador | 18 years of age; universal, compulsory for literate persons ages 18-65, optional for other eligible voters |
| Egypt | 18 years of age; universal and compulsory |
| El Salvador | 18 years of age; universal |
| Equatorial Guinea | 18 years of age; universal |
| Eritrea | 18 years of age; universal |
| Estonia | 18 years of age; universal for all Estonian citizens |
| Ethiopia | 18 years of age; universal |
| European Union | 18 years of age; universal |
| Falkland Islands (Islas Malvinas) | 18 years of age; universal |
| Faroe Islands | 18 years of age; universal |
| Fiji | 21 years of age; universal |
| Finland | 18 years of age; universal |
| France | 18 years of age; universal |
| French Polynesia | 18 years of age; universal |
| Gabon | 21 years of age; universal |
| Gambia, The | 18 years of age; universal |
| Georgia | 18 years of age; universal |
| Germany | 18 years of age; universal |
| Ghana | 18 years of age; universal |
| Gibraltar | 18 years of age; universal; and British citizens who have been residents six months or more |
| Greece | 18 years of age; universal and compulsory |
| Greenland | 18 years of age; universal |
| Grenada | 18 years of age; universal |
| Guam | 18 years of age; universal; US citizens, but do not vote in US presidential elections |
| Guatemala | 18 years of age; universal; note – active duty members of the armed forces may not vote and are restricted to their barracks on election day |
| Guernsey | 18 years of age; universal |
| Guinea | 18 years of age; universal |
| Guinea-Bissau | 18 years of age; universal |
| Guyana | 18 years of age; universal |
| Haiti | 18 years of age; universal |
| Holy See (Vatican City) | limited to cardinals less than 80 years old |
| Honduras | 18 years of age; universal and compulsory |
| Hong Kong | direct election – 18 years of age for a number of non-executive positions; universal for permanent residents living in the territory of Hong Kong for the past seven years; indirect election – limited to about 220,000 members of functional constituencies and an 800-member election committee drawn from broad regional groupings, central government bodies, and municipal organizations |
| Hungary | 18 years of age; universal |
| Iceland | 18 years of age; universal |
| India | 18 years of age; universal |
| Indonesia | 17 years of age; universal and married persons regardless of age |
| Iran | 16 years of age; universal |
| Iraq | 18 years of age; universal |
| Ireland | 18 years of age; universal |
| Isle of Man | 16 years of age; universal |
| Israel | 18 years of age; universal |
| Italy | 18 years of age; universal (except in senatorial elections, where minimum age is 25) |
| Jamaica | 18 years of age; universal |
| Japan | 20 years of age; universal |
| Jersey | 18 years of age; universal |
| Jordan | 18 years of age; universal |
| Kazakhstan | 18 years of age; universal |
| Kenya | 18 years of age; universal |
| Kiribati | 18 years of age; universal |
| Korea, North | 17 years of age; universal |
| Korea, South | 19 years of age; universal |
| Kosovo | 18 years of age; universal |
| Kosovo | 18 years of age; universal |
| Kuwait | NA years of age; universal (adult); note – males in the military or police are not allowed to vote; adult females were allowed to vote as of 16 May 2005; all voters must have been citizens for 20 years |
| Kyrgyzstan | 18 years of age; universal |
| Laos | 18 years of age; universal |
| Latvia | 18 years of age; universal for Latvian citizens |
| Lebanon | 21 years of age; compulsory for all males; authorized for women at age 21 with elementary education |
| Lesotho | 18 years of age; universal |
| Liberia | 18 years of age; universal |
| Libya | 18 years of age; universal and compulsory |
| Liechtenstein | 18 years of age; universal |
| Lithuania | 18 years of age; universal |
| Luxembourg | 18 years of age; universal and compulsory |
| Macau | direct election 18 years of age for some non-executive positions, universal for permanent residents living in Macau for the past seven years; indirect election limited to organizations registered as “corporate voters” (257 are currently registered) and a 300-member Election Committee drawn from broad regional groupings, municipal organizations, and central government bodies |
| Macedonia | 18 years of age; universal |
| Madagascar | 18 years of age; universal |
| Malawi | 18 years of age; universal |
| Malaysia | 21 years of age; universal |
| Maldives | 21 years of age; universal |
| Mali | 18 years of age; universal |
| Malta | 18 years of age; universal |
| Marshall Islands | 18 years of age; universal |
| Mauritania | 18 years of age; universal |
| Mauritius | 18 years of age; universal |
| Mayotte | 18 years of age; universal |
| Mexico | 18 years of age; universal and compulsory (but not enforced) |
| Micronesia, Federated States of | 18 years of age; universal |
| Moldova | 18 years of age; universal |
| Monaco | 18 years of age; universal |
| Mongolia | 18 years of age; universal |
| Montenegro | 18 years of age; universal |
| Montserrat | 18 years of age; universal |
| Morocco | 18 years of age; universal (as of January 2003) |
| Mozambique | 18 years of age; universal |
| Namibia | 18 years of age; universal |
| Nauru | 20 years of age; universal and compulsory |
| Nepal | 18 years of age; universal |
| Netherlands | 18 years of age; universal |
| Netherlands Antilles | 18 years of age; universal |
| New Caledonia | 18 years of age; universal |
| New Zealand | 18 years of age; universal |
| Nicaragua | 16 years of age; universal |
| Niger | 18 years of age; universal |
| Nigeria | 18 years of age; universal |
| Niue | 18 years of age; universal |
| Norfolk Island | 18 years of age; universal |
| Northern Mariana Islands | 18 years of age; universal; indigenous inhabitants are US citizens but do not vote in US presidential elections |
| Norway | 18 years of age; universal |
| Oman | 21 years of age; universal; note – members of the military and security forces are not allowed to vote |
| Pakistan | 18 years of age; universal; joint electorates and reserved parliamentary seats for women and non-Muslims |
| Palau | 18 years of age; universal |
| Panama | 18 years of age; universal and compulsory |
| Papua New Guinea | 18 years of age; universal |
| Paraguay | 18 years of age; universal and compulsory up to age 75 |
| Peru | 18 years of age; universal and compulsory until the age of 70; note – for the first time in recent elections, members of the military and national police were eligible to vote in the 2006 elections |
| Philippines | 18 years of age; universal |
| Pitcairn Islands | 18 years of age; universal with three years residency |
| Poland | 18 years of age; universal |
| Portugal | 18 years of age; universal |
| Puerto Rico | 18 years of age; universal; island residents are US citizens but do not vote in US presidential elections |
| Qatar | 18 years of age; universal |
| Romania | 18 years of age; universal |
| Russia | 18 years of age; universal |
| Rwanda | 18 years of age; universal |
| Saint Barthelemy | 18 years of age, universal |
| Saint Helena | NA years of age |
| Saint Kitts and Nevis | 18 years of age; universal |
| Saint Lucia | 18 years of age; universal |
| Saint Martin | 18 years of age, universal |
| Saint Pierre and Miquelon | 18 years of age; universal |
| Saint Vincent and the Grenadines | 18 years of age; universal |
| Samoa | 21 years of age; universal |
| San Marino | 18 years of age; universal |
| Sao Tome and Principe | 18 years of age; universal |
| Saudi Arabia | 21 years of age; male |
| Senegal | 18 years of age; universal |
| Serbia | 18 years of age; universal |
| Seychelles | 17 years of age; universal |
| Sierra Leone | 18 years of age; universal |
| Singapore | 21 years of age; universal and compulsory |
| Slovakia | 18 years of age; universal |
| Slovenia | 18 years of age; universal (16 years of age, if employed) |
| Solomon Islands | 21 years of age; universal |
| Somalia | 18 years of age; universal |
| South Africa | 18 years of age; universal |
| Spain | 18 years of age; universal |
| Sri Lanka | 18 years of age; universal |
| Sudan | 17 years of age; universal |
| Suriname | 18 years of age; universal |
| Swaziland | 18 years of age |
| Sweden | 18 years of age; universal |
| Switzerland | 18 years of age; universal |
| Syria | 18 years of age; universal |
| Taiwan | 20 years of age; universal |
| Tajikistan | 18 years of age; universal |
| Tanzania | 18 years of age; universal |
| Thailand | 18 years of age; universal and compulsory |
| Timor-Leste | 17 years of age; universal |
| Togo | NA years of age; universal (adult) |
| Tokelau | 21 years of age; universal |
| Tonga | 21 years of age; universal |
| Trinidad and Tobago | 18 years of age; universal |
| Tunisia | 18 years of age; universal except for active government security forces (including the police and the military), people with mental disabilities, people who have served more than three months in prison (criminal cases only), and people given a suspended sentence of more than six months |
| Turkey | 18 years of age; universal |
| Turkmenistan | 18 years of age; universal |
| Turks and Caicos Islands | 18 years of age; universal |
| Tuvalu | 18 years of age; universal |
| Uganda | 18 years of age; universal |
| Ukraine | 18 years of age; universal |
| United Arab Emirates | none |
| United Kingdom | 18 years of age; universal |
| United States | 18 years of age; universal |
| Uruguay | 18 years of age; universal and compulsory |
| Uzbekistan | 18 years of age; universal |
| Vanuatu | 18 years of age; universal |
| Venezuela | 18 years of age; universal |
| Vietnam | 18 years of age; universal |
| Virgin Islands | 18 years of age; universal; island residents are US citizens but do not vote in US presidential elections |
| Wallis and Futuna | 18 years of age; universal |
| Western Sahara | none; a UN-sponsored voter identification campaign not yet completed |
| Yemen | 18 years of age; universal |
| Zambia | 18 years of age; universal |
| Zimbabwe | 18 years of age; universal |