Compare data on Parliaments
Electoral system sub-categories
Latest data
Country | Chamber | Electoral system sub-categories | Structure | Chamber type |
---|---|---|---|---|
House of the People (Suspended) | Single Non-Transferable Vote (SNTV) | Bicameral | Lower chamber | |
House of Elders (Suspended) | Not applicable | Bicameral | Upper chamber | |
Albania | Parliament | List Proportional Representation (List PR) | Unicameral | - |
Algeria | National People's Assembly | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Algeria | Council of the Nation | First Past The Post (FPTP) | Bicameral | Upper chamber |
Andorra | General Council | Parallel Systems | Unicameral | - |
Angola | National Assembly | List Proportional Representation (List PR) | Unicameral | - |
Antigua and Barbuda | House of Representatives | First Past The Post (FPTP) | Bicameral | Lower chamber |
Antigua and Barbuda | Senate | Not applicable | Bicameral | Upper chamber |
Argentina | Chamber of Deputies | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Argentina | Senate | List Proportional Representation (List PR) | Bicameral | Upper chamber |
Armenia | National Assembly | List Proportional Representation (List PR) | Unicameral | - |
Australia | House of Representatives | Alternative Vote (AV) | Bicameral | Lower chamber |
Australia | Senate | Single Transferable Vote (STV) | Bicameral | Upper chamber |
Austria | National Council | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Austria | Federal Council | Not applicable | Bicameral | Upper chamber |
Azerbaijan | National Assembly | First Past The Post (FPTP) | Unicameral | - |
Bahamas | House of Assembly | First Past The Post (FPTP) | Bicameral | Lower chamber |
Bahamas | Senate | Not applicable | Bicameral | Upper chamber |
Bahrain | Council of Representatives | Two-Round System (TRS) | Bicameral | Lower chamber |
Bahrain | Shura Council | Not applicable | Bicameral | Upper chamber |
Parliament (Suspended) | First Past The Post (FPTP) | Unicameral | - | |
Barbados | House of Assembly | First Past The Post (FPTP) | Bicameral | Lower chamber |
Barbados | Senate | Not applicable | Bicameral | Upper chamber |
Belarus | House of Representatives | Two-Round System (TRS) | Bicameral | Lower chamber |
Belarus | Council of the Republic | Not applicable | Bicameral | Upper chamber |
Belgium | House of Representatives | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Belgium | Senate | Not applicable | Bicameral | Upper chamber |
Belize | House of Representatives | First Past The Post (FPTP) | Bicameral | Lower chamber |
Belize | Senate | Not applicable | Bicameral | Upper chamber |
Benin | National Assembly | List Proportional Representation (List PR) | Unicameral | - |
Bhutan | National Assembly | First Past The Post (FPTP) | Bicameral | Lower chamber |
Bhutan | National Council | First Past The Post (FPTP) | Bicameral | Upper chamber |
Bolivia (Plurinational State of) | Chamber of Deputies | No information available | Bicameral | Lower chamber |
Bolivia (Plurinational State of) | Chamber of Senators | List Proportional Representation (List PR) | Bicameral | Upper chamber |
Bosnia and Herzegovina | House of Representatives | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Bosnia and Herzegovina | House of Peoples | Not applicable | Bicameral | Upper chamber |
Botswana | National Assembly | First Past The Post (FPTP) | Unicameral | - |
Brazil | Chamber of Deputies | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Brazil | Federal Senate | First Past The Post (FPTP) | Bicameral | Upper chamber |
Brunei Darussalam | Legislative Council | Block Vote (BV) | Unicameral | - |
Bulgaria | National Assembly | List Proportional Representation (List PR) | Unicameral | - |
Burkina Faso | Transitional Legislative Assembly | List Proportional Representation (List PR) | Unicameral | - |
Burundi | National Assembly | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Burundi | Senate | Not applicable | Bicameral | Upper chamber |
Cabo Verde | National Assembly | List Proportional Representation (List PR) | Unicameral | - |
Cambodia | National Assembly | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Cambodia | Senate | Not applicable | Bicameral | Upper chamber |
Cameroon | National Assembly | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Cameroon | Senate | Not applicable | Bicameral | Upper chamber |
Canada | House of Commons | First Past The Post (FPTP) | Bicameral | Lower chamber |
Canada | Senate | Not applicable | Bicameral | Upper chamber |
Central African Republic | National Assembly | Two-Round System (TRS) | Unicameral | - |
Chad | National Assembly | Parallel Systems | Bicameral | Lower chamber |
Chad | Senate | No information available | Bicameral | Upper chamber |
Chile | Chamber of Deputies | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Chile | Senate | List Proportional Representation (List PR) | Bicameral | Upper chamber |
China | National People's Congress | Not applicable | Unicameral | - |
Colombia | House of Representatives | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Colombia | Senate | List Proportional Representation (List PR) | Bicameral | Upper chamber |
Comoros | Assembly of the Union | Two-Round System (TRS) | Unicameral | - |
Congo | National Assembly | Two-Round System (TRS) | Bicameral | Lower chamber |
Congo | Senate | Not applicable | Bicameral | Upper chamber |
Costa Rica | Legislative Assembly | List Proportional Representation (List PR) | Unicameral | - |
Côte d'Ivoire | National Assembly | No information available | Bicameral | Lower chamber |
Côte d'Ivoire | Senate | Not applicable | Bicameral | Upper chamber |
Croatia | Croatian Parliament | List Proportional Representation (List PR) | Unicameral | - |
Cuba | National Assembly of the People's Power | Single Non-Transferable Vote (SNTV) | Unicameral | - |
Cyprus | House of Representatives | List Proportional Representation (List PR) | Unicameral | - |
Czechia | Chamber of Deputies | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Czechia | Senate | Two-Round System (TRS) | Bicameral | Upper chamber |
Democratic People's Republic of Korea | Supreme People's Assembly | Two-Round System (TRS) | Unicameral | - |
Democratic Republic of the Congo | National Assembly | Parallel Systems | Bicameral | Lower chamber |
Democratic Republic of the Congo | Senate | Not applicable | Bicameral | Upper chamber |
Denmark | The Danish Parliament | List Proportional Representation (List PR) | Unicameral | - |
Djibouti | National Assembly | Mixed Member Proportional System (MMP) | Unicameral | - |
Dominica | House of Assembly | List Proportional Representation (List PR) | Unicameral | - |
Dominican Republic | Chamber of Deputies | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Dominican Republic | Senate | List Proportional Representation (List PR) | Bicameral | Upper chamber |
Ecuador | National Assembly | List Proportional Representation (List PR) | Unicameral | - |
Egypt | House of Representatives | Parallel Systems | Bicameral | Lower chamber |
Egypt | Senate | Parallel Systems | Bicameral | Upper chamber |
El Salvador | Legislative Assembly | List Proportional Representation (List PR) | Unicameral | - |
Equatorial Guinea | Chamber of Deputies | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Equatorial Guinea | Senate | List Proportional Representation (List PR) | Bicameral | Upper chamber |
Eritrea | National Assembly | Not applicable | Unicameral | - |
Estonia | The Estonian Parliament | List Proportional Representation (List PR) | Unicameral | - |
Eswatini | House of Assembly | Two-Round System (TRS) | Bicameral | Lower chamber |
Eswatini | Senate | Not applicable | Bicameral | Upper chamber |
Ethiopia | House of Peoples' Representatives | Block Vote (BV) | Bicameral | Lower chamber |
Ethiopia | House of the Federation | Not applicable | Bicameral | Upper chamber |
Fiji | Parliament | List Proportional Representation (List PR) | Unicameral | - |
Finland | Parliament | List Proportional Representation (List PR) | Unicameral | - |
France | National Assembly | Two-Round System (TRS) | Bicameral | Lower chamber |
France | Senate | Not applicable | Bicameral | Upper chamber |
Gabon | Transitional National Assembly | Not applicable | Bicameral | Lower chamber |
Gabon | Transitional Senate | Not applicable | Bicameral | Upper chamber |
Gambia (The) | National Assembly | First Past The Post (FPTP) | Unicameral | - |
Georgia | Parliament | List Proportional Representation (List PR) | Unicameral | - |
Germany | German Bundestag | Mixed Member Proportional System (MMP) | Bicameral | Lower chamber |
Germany | Federal Council | Not applicable | Bicameral | Upper chamber |
Ghana | Parliament | First Past The Post (FPTP) | Unicameral | - |
Greece | Hellenic Parliament | List Proportional Representation (List PR) | Unicameral | - |
Grenada | House of Representatives | First Past The Post (FPTP) | Bicameral | Lower chamber |
Grenada | Senate | Not applicable | Bicameral | Upper chamber |
Guatemala | Congress of the Republic | Parallel Systems | Unicameral | - |
Guinea | Transitional National Council | Parallel Systems | Unicameral | - |
Guinea-Bissau | People's National Assembly | List Proportional Representation (List PR) | Unicameral | - |
Guyana | National Assembly | No information available | Unicameral | - |
Haiti | Chamber of Deputies | Two-Round System (TRS) | Bicameral | Lower chamber |
Haiti | Senate | First Past The Post (FPTP) | Bicameral | Upper chamber |
Honduras | National Congress | List Proportional Representation (List PR) | Unicameral | - |
Hungary | National Assembly | Mixed Member Proportional System (MMP) | Unicameral | - |
Iceland | Parliament | List Proportional Representation (List PR) | Unicameral | - |
India | House of the People | First Past The Post (FPTP) | Bicameral | Lower chamber |
India | Council of States | Not applicable | Bicameral | Upper chamber |
Indonesia | House of Representatives | List Proportional Representation (List PR) | Unicameral | - |
Iran (Islamic Republic of) | Islamic Parliament of Iran | Two-Round System (TRS) | Unicameral | - |
Iraq | Council of Representatives of Iraq | Single Non-Transferable Vote (SNTV) | Unicameral | - |
Ireland | House of Representatives | Single Transferable Vote (STV) | Bicameral | Lower chamber |
Ireland | Senate | Not applicable | Bicameral | Upper chamber |
Israel | Parliament | List Proportional Representation (List PR) | Unicameral | - |
Italy | Chamber of Deputies | Parallel Systems | Bicameral | Lower chamber |
Italy | Senate | Parallel Systems | Bicameral | Upper chamber |
Jamaica | House of Representatives | First Past The Post (FPTP) | Bicameral | Lower chamber |
Jamaica | Senate | Not applicable | Bicameral | Upper chamber |
Japan | House of Representatives | Parallel Systems | Bicameral | Lower chamber |
Japan | House of Councillors | Parallel Systems | Bicameral | Upper chamber |
Jordan | House of Representatives | Parallel Systems | Bicameral | Lower chamber |
Jordan | Senate | Not applicable | Bicameral | Upper chamber |
Kazakhstan | House of Representatives | Parallel Systems | Bicameral | Lower chamber |
Kazakhstan | Senate | Not applicable | Bicameral | Upper chamber |
Kenya | National Assembly | First Past The Post (FPTP) | Bicameral | Lower chamber |
Kenya | Senate | First Past The Post (FPTP) | Bicameral | Upper chamber |
Kiribati | House of Assembly | First Past The Post (FPTP) | Unicameral | - |
National Assembly (Suspended) | Single Non-Transferable Vote (SNTV) | Unicameral | - | |
Kyrgyzstan | Supreme Council | List Proportional Representation (List PR) | Unicameral | - |
Lao People's Democratic Republic | National Assembly | First Past The Post (FPTP) | Unicameral | - |
Latvia | Parliament | List Proportional Representation (List PR) | Unicameral | - |
Lebanon | National Assembly | List Proportional Representation (List PR) | Unicameral | - |
Lesotho | National Assembly | No information available | Bicameral | Lower chamber |
Lesotho | Senate | Not applicable | Bicameral | Upper chamber |
Liberia | House of Representatives | First Past The Post (FPTP) | Bicameral | Lower chamber |
Liberia | The Liberian Senate | Block Vote (BV) | Bicameral | Upper chamber |
Libya | House of Representatives | Single Non-Transferable Vote (SNTV) | Unicameral | - |
Liechtenstein | Diet | List Proportional Representation (List PR) | Unicameral | - |
Lithuania | Parliament | Parallel Systems | Unicameral | - |
Luxembourg | Chamber of Deputies | List Proportional Representation (List PR) | Unicameral | - |
Madagascar | National Assembly | No information available | Bicameral | Lower chamber |
Madagascar | Senate | Not applicable | Bicameral | Upper chamber |
Malawi | National Assembly | First Past The Post (FPTP) | Unicameral | - |
Malaysia | House of Representatives | First Past The Post (FPTP) | Bicameral | Lower chamber |
Malaysia | Senate | Not applicable | Bicameral | Upper chamber |
Maldives | People's Majlis | First Past The Post (FPTP) | Unicameral | - |
Mali | Transitional National Council | Two-Round System (TRS) | Unicameral | - |
Malta | House of Representatives | Single Transferable Vote (STV) | Unicameral | - |
Marshall Islands | Parliament | First Past The Post (FPTP) | Unicameral | - |
Mauritania | National Assembly | Parallel Systems | Unicameral | - |
Senate (Suspended) | No information available | Unicameral | - | |
Mauritius | National Assembly | First Past The Post (FPTP) | Unicameral | - |
Mexico | Chamber of Deputies | Mixed Member Proportional System (MMP) | Bicameral | Lower chamber |
Mexico | Senate | Mixed Member Proportional System (MMP) | Bicameral | Upper chamber |
Micronesia (Federated States of) | Congress | No information available | Unicameral | - |
Monaco | National Council | List Proportional Representation (List PR) | Unicameral | - |
Mongolia | State Great Hural | Parallel Systems | Unicameral | - |
Montenegro | Parliament | List Proportional Representation (List PR) | Unicameral | - |
Morocco | House of Representatives | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Morocco | House of Councillors | Not applicable | Bicameral | Upper chamber |
Mozambique | Assembly of the Republic | List Proportional Representation (List PR) | Unicameral | - |
House of Representatives (Suspended) | First Past The Post (FPTP) | Bicameral | Lower chamber | |
House of Nationalities (Suspended) | First Past The Post (FPTP) | Bicameral | Upper chamber | |
Namibia | National Assembly | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Namibia | National Council | List Proportional Representation (List PR) | Bicameral | Upper chamber |
Nauru | Parliament | First Past The Post (FPTP) | Unicameral | - |
Nepal | House of Representatives | No information available | Bicameral | Lower chamber |
Nepal | National Assembly | Not applicable | Bicameral | Upper chamber |
Netherlands | House of Representatives | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Netherlands | Senate | Not applicable | Bicameral | Upper chamber |
New Zealand | House of Representatives | Mixed Member Proportional System (MMP) | Unicameral | - |
Nicaragua | National Assembly | List Proportional Representation (List PR) | Unicameral | - |
National Assembly (Suspended) | Parallel Systems | Unicameral | - | |
Nigeria | House of Representatives | First Past The Post (FPTP) | Bicameral | Lower chamber |
Nigeria | Senate | First Past The Post (FPTP) | Bicameral | Upper chamber |
North Macedonia | Assembly of the Republic | Parallel Systems | Unicameral | - |
Norway | Parliament | List Proportional Representation (List PR) | Unicameral | - |
Oman | Shura Council | Single Non-Transferable Vote (SNTV) | Bicameral | Lower chamber |
Oman | State Council | Not applicable | Bicameral | Upper chamber |
Pakistan | National Assembly | First Past The Post (FPTP) | Bicameral | Lower chamber |
Pakistan | Senate | Not applicable | Bicameral | Upper chamber |
Palau | House of Delegates | First Past The Post (FPTP) | Bicameral | Lower chamber |
Palau | Senate | Block Vote (BV) | Bicameral | Upper chamber |
Panama | National Assembly | Parallel Systems | Unicameral | - |
Papua New Guinea | National Parliament | Alternative Vote (AV) | Unicameral | - |
Paraguay | Chamber of Deputies | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Paraguay | Senate | List Proportional Representation (List PR) | Bicameral | Upper chamber |
Peru | Congress of the Republic | List Proportional Representation (List PR) | Unicameral | - |
Philippines | House of Representatives | Parallel Systems | Bicameral | Lower chamber |
Philippines | Senate | Block Vote (BV) | Bicameral | Upper chamber |
Poland | Sejm | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Poland | Senate | First Past The Post (FPTP) | Bicameral | Upper chamber |
Portugal | Assembly of the Republic | List Proportional Representation (List PR) | Unicameral | - |
Qatar | Shura Council | First Past The Post (FPTP) | Unicameral | - |
Republic of Korea | National Assembly | Mixed Member Proportional System (MMP) | Unicameral | - |
Republic of Moldova | Parliament | No information available | Unicameral | - |
Romania | Chamber of Deputies | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Romania | Senate | List Proportional Representation (List PR) | Bicameral | Upper chamber |
Russian Federation | State Duma | Parallel Systems | Bicameral | Lower chamber |
Russian Federation | Council of the Federation | Not applicable | Bicameral | Upper chamber |
Rwanda | Chamber of Deputies | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Rwanda | Senate | Not applicable | Bicameral | Upper chamber |
Saint Kitts and Nevis | National Assembly | First Past The Post (FPTP) | Unicameral | - |
Saint Lucia | House of Assembly | First Past The Post (FPTP) | Bicameral | Lower chamber |
Saint Lucia | Senate | Not applicable | Bicameral | Upper chamber |
Saint Vincent and the Grenadines | House of Assembly | First Past The Post (FPTP) | Unicameral | - |
Samoa | Legislative Assembly | First Past The Post (FPTP) | Unicameral | - |
San Marino | Great and General Council | List Proportional Representation (List PR) | Unicameral | - |
Sao Tome and Principe | National Assembly | List Proportional Representation (List PR) | Unicameral | - |
Saudi Arabia | Shura Council | Not applicable | Unicameral | - |
Senegal | National Assembly | Parallel Systems | Unicameral | - |
Serbia | National Assembly | List Proportional Representation (List PR) | Unicameral | - |
Seychelles | National Assembly | Parallel Systems | Unicameral | - |
Sierra Leone | Parliament | List Proportional Representation (List PR) | Unicameral | - |
Singapore | Parliament | First Past The Post (FPTP) | Unicameral | - |
Slovakia | National Council | List Proportional Representation (List PR) | Unicameral | - |
Slovenia | National Assembly | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Slovenia | National Council | Not applicable | Bicameral | Upper chamber |
Solomon Islands | National Parliament | First Past The Post (FPTP) | Unicameral | - |
Somalia | House of the People | Not applicable | Bicameral | Lower chamber |
Somalia | Upper House | Not applicable | Bicameral | Upper chamber |
South Africa | National Assembly | List Proportional Representation (List PR) | Bicameral | Lower chamber |
South Africa | National Council of Provinces | Not applicable | Bicameral | Upper chamber |
South Sudan | Transitional National Legislative Assembly | Not applicable | Bicameral | Lower chamber |
South Sudan | Council of States | Not applicable | Bicameral | Upper chamber |
Spain | Congress of Deputies | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Spain | Senate | Parallel Systems | Bicameral | Upper chamber |
Sri Lanka | Parliament | List Proportional Representation (List PR) | Unicameral | - |
National Assembly (Suspended) | No information available | Bicameral | Lower chamber | |
Council of States (Suspended) | Not applicable | Bicameral | Upper chamber | |
Suriname | National Assembly | List Proportional Representation (List PR) | Unicameral | - |
Sweden | Parliament | List Proportional Representation (List PR) | Unicameral | - |
Switzerland | National Council | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Switzerland | Council of States | Other | Bicameral | Upper chamber |
Syrian Arab Republic | People's Assembly | Block Vote (BV) | Unicameral | - |
Tajikistan | House of Representatives | Mixed Member Proportional System (MMP) | Bicameral | Lower chamber |
Tajikistan | National Assembly | Not applicable | Bicameral | Upper chamber |
Thailand | House of Representatives | Mixed Member Proportional System (MMP) | Bicameral | Lower chamber |
Thailand | Senate | Not applicable | Bicameral | Upper chamber |
Timor-Leste | National Parliament | List Proportional Representation (List PR) | Unicameral | - |
Togo | National Assembly | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Togo | Senate | No information available | Bicameral | Upper chamber |
Tonga | Legislative Assembly | First Past The Post (FPTP) | Unicameral | - |
Trinidad and Tobago | House of Representatives | First Past The Post (FPTP) | Bicameral | Lower chamber |
Trinidad and Tobago | Senate | Not applicable | Bicameral | Upper chamber |
Tunisia | Assembly of People's Representatives | Two-Round System (TRS) | Bicameral | Lower chamber |
Tunisia | National Council of Regions and Districts | No information available | Bicameral | Upper chamber |
Türkiye | Grand National Assembly of Türkiye | List Proportional Representation (List PR) | Unicameral | - |
Turkmenistan | Assembly | First Past The Post (FPTP) | Unicameral | - |
People’s Council (Suspended) | Not applicable | Unicameral | - | |
Tuvalu | Parliament of Tuvalu | First Past The Post (FPTP) | Unicameral | - |
Uganda | Parliament | First Past The Post (FPTP) | Unicameral | - |
Ukraine | Parliament | Parallel Systems | Unicameral | - |
United Arab Emirates | Federal National Council | Single Non-Transferable Vote (SNTV) | Unicameral | - |
United Kingdom | House of Commons | First Past The Post (FPTP) | Bicameral | Lower chamber |
United Kingdom | House of Lords | Not applicable | Bicameral | Upper chamber |
United Republic of Tanzania | National Assembly | First Past The Post (FPTP) | Unicameral | - |
United States of America | House of Representatives | First Past The Post (FPTP) | Bicameral | Lower chamber |
United States of America | Senate | First Past The Post (FPTP) | Bicameral | Upper chamber |
Uruguay | House of Representatives | List Proportional Representation (List PR) | Bicameral | Lower chamber |
Uruguay | Senate | List Proportional Representation (List PR) | Bicameral | Upper chamber |
Uzbekistan | Legislative Chamber | Parallel Systems | Bicameral | Lower chamber |
Uzbekistan | Senate | Not applicable | Bicameral | Upper chamber |
Vanuatu | Parliament | List Proportional Representation (List PR) | Unicameral | - |
Venezuela (Bolivarian Republic of) | National Assembly | Parallel Systems | Unicameral | - |
Viet Nam | National Assembly | Two-Round System (TRS) | Unicameral | - |
Yemen | House of Representatives | First Past The Post (FPTP) | Bicameral | Lower chamber |
Yemen | Shura Council | Not applicable | Bicameral | Upper chamber |
Zambia | National Assembly | First Past The Post (FPTP) | Unicameral | - |
Zimbabwe | National Assembly | Parallel Systems | Bicameral | Lower chamber |
Zimbabwe | Senate | List Proportional Representation (List PR) | Bicameral | Upper chamber |