Régions et Pays —
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Electoral Systems

Number of Chambers

The national legislature consists of (one/two chambers):


total countries/territories: 236
Country/Territory Answers Comments Verified
Afghanistan b. Two chambers 2019/09/24
Albania a. One chamber 2017/05/17
Algeria b. Two chambers 2019/09/25
American Samoa b. Two chambers 2017/08/18
Andorra a. One chamber 2023/06/09
Angola a. One chamber 2017/03/28
Anguilla a. One chamber 2015/02/24
Antigua and Barbuda b. Two chambers 2014/06/06
Argentina b. Two chambers 2021/12/26
Armenia a. One chamber 2017/04/12
Aruba a. One chamber 2017/07/07
Australia b. Two chambers 2024/09/09
Austria b. Two chambers 2017/07/07
Azerbaijan a. One chamber 2024/11/12
Bahamas b. Two chambers 2017/03/27
Bahrain b. Two chambers 2024/11/25
Bangladesh a. One chamber 2012/05/30
Barbados b. Two chambers 2011/06/22
Belarus b. Two chambers 2023/09/13
Belgium b. Two chambers 2019/04/25
Belize b. Two chambers 2025/03/24
Benin a. One chamber 2019/04/05
Bermuda b. Two chambers 2012/05/31
Bhutan b. Two chambers 2024/08/27
Bolivia b. Two chambers 2024/12/09
Bosnia and Herzegovina b. Two chambers 2025/06/23
Botswana a. One chamber 2014/10/24
Brazil b. Two chambers 2024/10/22
Brunei Darussalam d. Not applicable 2013/03/18
Bulgaria a. One chamber 2014/10/01
Burkina Faso b. Two chambers 2015/12/04
Burma (Myanmar) b. Two chambers 2015/11/17
Burundi b. Two chambers 2025/05/08
Cambodia b. Two chambers 2023/10/11
Cameroon b. Two chambers 2018/11/05
Canada b. Two chambers 2025/03/28
Cape Verde a. One chamber 2016/05/04
Cayman Islands a. One chamber 2021/12/13
Central African Republic a. One chamber 2021/04/19
Chad a. One chamber 2019/04/23
Chile b. Two chambers 2025/03/03
China a. One chamber 2012/06/04
Christmas Island a. One chamber 2009/11/30
Cocos (keeling) Islands a. One chamber 2019/07/08
Colombia b. Two chambers 2024/12/11
Comoros a. One chamber 2025/09/30
Congo (Brazzaville) b. Two chambers 2017/03/29
Congo (Kinshasa), Democratic Republic of the b. Two chambers 2018/11/09
Cook Islands b. Two chambers 2014/06/05
Costa Rica a. One chamber 2018/01/24
Croatia a. One chamber 2020/07/02
Cuba a. One chamber 2023/09/11
Cyprus a. One chamber 2024/10/25
Cyprus (North) a. One chamber 2012/06/07
Czech Republic b. Two chambers 2023/09/14
Côte d'Ivoire a. One chamber 2016/11/30
Denmark a. One chamber 2019/05/22
Djibouti a. One chamber 2023/07/11
Dominica a. One chamber 2014/12/16
Dominican Republic b. Two chambers 2020/02/04
Ecuador a. One chamber 2025/03/13
Egypt b. Two chambers 2025/09/23
El Salvador a. One chamber 2024/12/19
Equatorial Guinea b. Two chambers 2016/05/03
Eritrea a. One chamber 2011/06/21
Estonia a. One chamber 2019/02/19
Ethiopia b. Two chambers 2015/05/18
Falkland Islands (Malvinas) a. One chamber 2022/04/19
Faroe Islands a. One chamber 2012/07/06
Fiji a. One chamber 2018/04/18
Finland a. One chamber 2019/04/02
France b. Two chambers 2020/06/20
French Polynesia b. Two chambers 2004/01/15
Gabon b. Two chambers 2017/03/24
Gambia a. One chamber 2017/03/21
Georgia a. One chamber 2024/07/24
Germany b. Two chambers 2025/03/06
Ghana a. One chamber 2016/09/19
Gibraltar a. One chamber 2019/11/04
Greece a. One chamber 2020/07/25
Greenland a. One chamber 2012/06/14
Grenada b. Two chambers 2012/02/24
Guam a. One chamber 2020/10/28
Guatemala a. One chamber 2023/05/29
Guernsey a. One chamber 2009/12/04
Guinea a. One chamber 2017/01/26
Guinea-Bissau a. One chamber 2014/06/24
Guyana a. One chamber 2015/05/11
Haiti b. Two chambers 2015/07/29
Holy See (Vatican City State) a. One chamber 2012/05/14
Honduras a. One chamber 2025/08/07
Hong Kong a. One chamber 2021/06/03
Hungary a. One chamber 2018/07/30
Iceland a. One chamber 2020/07/27
India b. Two chambers 2024/06/12
Indonesia b. Two chambers 2024/02/07
Iran, Islamic Republic of a. One chamber 2024/11/19
Iraq a. One chamber 2018/04/15
Ireland b. Two chambers 2024/11/21
Israel a. One chamber 2019/05/01
Italy b. Two chambers 2020/07/18
Jamaica b. Two chambers 2025/09/18
Japan b. Two chambers 2021/09/17
Jersey a. One chamber 2009/12/07
Jordan b. Two chambers 2016/07/28
Kazakhstan b. Two chambers 2024/09/12
Kenya b. Two chambers 2024/12/06
Kiribati a. One chamber 2024/11/24
Korea, Democratic People's Republic of a. One chamber 2014/06/23
Korea, Republic of a. One chamber 2024/08/28
Kuwait a. One chamber 2013/01/30
Kyrgyzstan a. One chamber 2025/05/07
Lao People's Democratic Republic a. One chamber 2021/02/16
Latvia a. One chamber 2022/09/12
Lebanon a. One chamber 2024/11/20
Lesotho b. Two chambers 2017/07/19
Liberia b. Two chambers 2024/10/25
Libyan Arab Jamahiriya a. One chamber 2024/11/25
Liechtenstein a. One chamber 2022/08/02
Lithuania a. One chamber 2020/06/05
Luxembourg a. One chamber 2024/11/20
Macau a. One chamber 2009/12/08
Macedonia, the Former Yugoslav Republic of a. One chamber 2024/11/19
Madagascar b. Two chambers 2013/02/07
Malawi a. One chamber 2025/04/14
Malaysia b. Two chambers 2013/03/21
Maldives a. One chamber 2019/02/11
Mali a. One chamber 2009/12/08
Malta a. One chamber 2012/05/22
Man, Isle of b. Two chambers 2009/12/14
Marshall Islands a. One chamber 2023/10/12
Mauritania b. Two chambers 2024/10/28
Mauritius a. One chamber 2012/02/25
Mayotte a. One chamber 2009/11/12
Mexico b. Two chambers 2024/04/12
Micronesia, Federated States of a. One chamber 2025/03/28
Moldova, Republic of a. One chamber 2021/03/30
Monaco a. One chamber 2012/04/27
Mongolia a. One chamber 2020/02/17
Montenegro a. One chamber 2023/09/25
Montserrat a. One chamber 2014/08/04
Morocco b. Two chambers 2022/08/02
Mozambique a. One chamber 2024/12/04
Namibia b. Two chambers 2012/02/24
Nauru a. One chamber 2012/06/28
Nepal b. Two chambers 2018/04/03
Netherlands b. Two chambers 2022/08/02
Netherlands Antilles a. One chamber 2009/11/12
New Caledonia b. Two chambers 2004/01/14
New Zealand a. One chamber 2024/07/02
Nicaragua a. One chamber 2016/06/07
Niger a. One chamber 2017/02/01
Nigeria b. Two chambers 2015/02/14
Niue a. One chamber 2014/06/23
Norfolk Islands a. One chamber 2010/01/07
Northern Mariana Islands b. Two chambers 2024/11/28
Norway a. One chamber 2017/05/19
Oman b. Two chambers 2025/04/30
Pakistan b. Two chambers 2024/11/25
Palau b. Two chambers 2016/11/04
Palestine a. One chamber 2013/04/08
Panama a. One chamber 2024/12/05
Papua New Guinea a. One chamber 2017/03/16
Paraguay b. Two chambers 2023/03/16
Peru a. One chamber 2020/01/28
Philippines b. Two chambers 2019/04/24
Pitcairn Islands a. One chamber 2019/11/05
Poland b. Two chambers 2024/11/13
Portugal a. One chamber 2024/10/26
Puerto Rico b. Two chambers 2020/11/03
Qatar a. One chamber 2025/05/08
Romania b. Two chambers 2020/08/22
Russian Federation b. Two chambers 2024/03/22
Rwanda b. Two chambers 2024/12/04
Saint Helena a. One chamber 2010/01/12
Saint Kitts and Nevis a. One chamber 2020/04/14
Saint Lucia b. Two chambers 2011/06/28
Saint Vincent and the Grenadines a. One chamber 2021/12/26
Samoa a. One chamber 2021/04/09
San Marino a. One chamber 2012/05/25
Sao Tome and Principe a. One chamber 2021/06/17
Saudi Arabia a. One chamber 2012/08/20
Senegal a. One chamber 2024/10/25
Serbia a. One chamber 2022/07/05
Seychelles a. One chamber 2025/02/25
Sierra Leone a. One chamber 2017/01/12
Singapore a. One chamber 2017/03/24
Slovakia a. One chamber 2024/10/25
Slovenia b. Two chambers 2017/03/30
Solomon Islands a. One chamber 2019/02/28
Somalia b. Two chambers 2016/11/25
South Africa b. Two chambers 2014/05/01
South Sudan b. Two chambers 2021/06/02
Spain b. Two chambers 2025/04/01
Sri Lanka a. One chamber 2016/01/28
Sudan b. Two chambers 2012/08/31
Suriname a. One chamber 2025/03/28
Swaziland b. Two chambers 2012/02/24
Sweden a. One chamber 2014/08/04
Switzerland b. Two chambers 2025/03/28
Syrian Arab Republic a. One chamber 2014/06/02
Taiwan a. One chamber 2020/04/13
Tajikistan b. Two chambers 2025/02/17
Tanzania, United Republic of a. One chamber 2015/10/21
Thailand b. Two chambers 2023/10/04
Timor-Leste a. One chamber 2024/11/14
Togo a. One chamber 2013/01/03
Tokelau a. One chamber 2009/09/30
Tonga a. One chamber 2021/09/13
Trinidad and Tobago b. Two chambers 2020/08/22
Tunisia a. One chamber 2019/08/05
Turkey a. One chamber 2016/01/21
Turkmenistan a. One chamber 2013/03/05
Turks and Caicos Islands a. One chamber 2020/10/08
Tuvalu a. One chamber 2019/02/25
Uganda a. One chamber 2016/02/08
Ukraine a. One chamber 2019/03/11
United Arab Emirates a. One chamber 2019/09/25
United Kingdom of Great Britain and Northern Ireland b. Two chambers 2025/06/12
United States of America b. Two chambers 2024/09/30
Uruguay b. Two chambers 2024/12/18
Uzbekistan b. Two chambers 2024/08/26
Vanuatu a. One chamber 2016/01/26
Venezuela a. One chamber 2020/11/15
Viet Nam a. One chamber 2021/03/23
Virgin Islands, British a. One chamber 2019/02/08
Virgin Islands, U.S. a. One chamber 2009/11/26
Wallis and Futuna b. Two chambers 2004/01/15
Western Sahara c. No information available 2009/08/14
Yemen b. Two chambers 2012/08/22
Zambia a. One chamber 2016/06/28
Zanzibar a. One chamber 2016/04/05
Zimbabwe b. Two chambers 2023/09/25


Note:This is an XLS file and is safe to run on new versions of Excel.