The CIA World Factbook Edition 2025, the latest with this field Government

Legislative branch - upper chamber In 1 edition of 36.

Legislative branch - upper chamber was published in 1 edition of the CIA World Factbook, in 2025. The 2025 edition carries it in 84 entries, in its Government section. Every entry is shown as that edition published it.

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Africa

26 entries

Algeria

chamber name:
Council of the Nation (Majlis al-Oumma)
number of seats:
174 (116 indirectly elected; 58 appointed)
electoral system:
plurality/majority
scope of elections:
partial renewal
term in office:
6 years
most recent election date:
3/9/2025
percentage of women in chamber:
2.5%
expected date of next election:
January 2028

Burundi

chamber name:
Senate (Inama Nkenguzamateka)
number of seats:
13 (all indirectly elected)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
7/23/2025
parties elected and seats per party:
National Council for the Defense of Democracy - Front for the Defense of Democracy (CNDD-FDD) (10)
percentage of women in chamber:
46.2%
expected date of next election:
July 2030

note: 3 seats in the Senate are reserved for Twas, and 30% of all votes are reserved for women

Cameroon

chamber name:
Senate (Sénat - Senate)
number of seats:
100 (70 indirectly elected; 30 appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
2/9/2020 to 3/22/2020
percentage of women in chamber:
33%
expected date of next election:
March 2027

Chad

chamber name:
Senate (Senate)
number of seats:
69 (46 indirectly elected; 23 appointed)
scope of elections:
full renewal
term in office:
6 years
most recent election date:
2/25/2025
parties elected and seats per party:
Patriotic Salvation Movement (MPS) (66); Other (3)
percentage of women in chamber:
36.2%
expected date of next election:
February 2031

note: 46 of the Senate's 69 seats are determined by election, and the remaining 23 seats are appointed by the President

Congo, Democratic Republic of the now Democratic Republic of the Congo

chamber name:
Senate (Sénat)
number of seats:
109 (all indirectly elected)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
12/20/2023
percentage of women in chamber:
15.8%
expected date of next election:
April 2029

Congo, Republic of the now Republic of the Congo

chamber name:
Senate (Sénat)
number of seats:
72 (all indirectly elected)
scope of elections:
full renewal
term in office:
6 years
most recent election date:
7/10/2022 to 7/31/2022
percentage of women in chamber:
31.9%
expected date of next election:
August 2029

Cote d'Ivoire

chamber name:
Senate (Sénat)
number of seats:
99 (66 indirectly elected; 33 appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
9/16/2023
percentage of women in chamber:
24.5%
expected date of next election:
September 2028

Egypt

chamber name:
Senate (Majlis Al-Shiyoukh)
number of seats:
300 (200 directly elected; 100 appointed)
electoral system:
mixed system
scope of elections:
full renewal
term in office:
5 years
most recent election date:
8/4/2025 to 8/28/2025
parties elected and seats per party:
  • Future of the Nation (Mostakbal Watan) (148);
  • Republican People's party (17);
  • Independents (88);
  • Other (47)
percentage of women in chamber:
10.7%
expected date of next election:
July 2030

Equatorial Guinea

chamber name:
Senate (Senado)
number of seats:
70 (55 directly elected; 15 appointed)
electoral system:
proportional representation
scope of elections:
full renewal
term in office:
5 years
most recent election date:
11/20/2022
parties elected and seats per party:
Democratic Party of Equatorial Guinea (PDGE) and its allies (55)
percentage of women in chamber:
25%
expected date of next election:
November 2027

Eswatini

chamber name:
Senate
number of seats:
30 (10 indirectly elected; 20 appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
11/6/2023
percentage of women in chamber:
46.7%
expected date of next election:
November 2028

Ethiopia

chamber name:
House of the Federation (Yefedereshein Mekir Bete)
number of seats:
153 (all indirectly elected)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
10/4/2021
percentage of women in chamber:
29.7%
expected date of next election:
October 2026

Gabon

chamber name:
Senate (Senate)
number of seats:
70 (all indirectly elected)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
9/27/2025 to 10/11/2025
percentage of women in chamber:
20.3%
expected date of next election:
November 2025

Kenya

chamber name:
Senate
number of seats:
68 (all directly elected)
electoral system:
plurality/majority
scope of elections:
full renewal
term in office:
5 years
most recent election date:
8/9/2022
parties elected and seats per party:
  • Kenya Kwanza Alliance (33);
  • Azimio la Umoja - One Kenya Coalition Party (32);
  • Other (1)
percentage of women in chamber:
31.3%
expected date of next election:
August 2027

Lesotho

chamber name:
Senate
number of seats:
33 (11 appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
10/7/2022
percentage of women in chamber:
21.2%
expected date of next election:
November 2027

Liberia

chamber name:
The Liberian Senate
number of seats:
30 (all directly elected)
electoral system:
plurality/majority
scope of elections:
partial renewal
term in office:
9 years
most recent election date:
10/10/2023
parties elected and seats per party:
  • Congress for Democratic Change (CDC) (6);
  • Unity Party (UP) (1);
  • Movement for Democracy and Reconstruction (MDR) (1);
  • Liberia Restoration Party (LRP) (1);
  • Independents (6)
percentage of women in chamber:
10%
expected date of next election:
October 2029

Madagascar

chamber name:
Senate (Antenimierandoholona)
number of seats:
18 (12 indirectly elected; 6 appointed)
term in office:
5 years
most recent election date:
5/29/2024
parties elected and seats per party:
IRMAR (10); MALAGASY MIARA-MIAINGA (2)
percentage of women in chamber:
11.1%
expected date of next election:
31 December 2026

Morocco

chamber name:
House of Councillors (Majlis al-Mustacharin)
number of seats:
120 (all indirectly elected)
scope of elections:
full renewal
term in office:
6 years
most recent election date:
10/5/2021
percentage of women in chamber:
11.7%
expected date of next election:
October 2027

Namibia

chamber name:
National Council
number of seats:
42 (all indirectly elected)
electoral system:
proportional representation
term in office:
5 years
most recent election date:
12/15/2020
percentage of women in chamber:
14.3%
expected date of next election:
December 2025

note: the Council primarily reviews legislation passed and referred by the National Assembly

Nigeria

chamber name:
Senate
number of seats:
109 (all directly elected)
electoral system:
plurality/majority
scope of elections:
full renewal
term in office:
4 years
most recent election date:
2/25/2023
parties elected and seats per party:
  • All Progressives Congress (APC) (59);
  • People's Democratic Party (PDP) (36);
  • Labour Party (LP) (8);
  • Other (6)
percentage of women in chamber:
3.7%
expected date of next election:
February 2027

Rwanda

chamber name:
Senate (Sénat)
number of seats:
26 (18 indirectly elected; 8 appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
9/16/2024 to 9/16/2024
percentage of women in chamber:
53.8%
expected date of next election:
September 2029

Somalia

chamber name:
Upper House (Aqalka Sare)
number of seats:
54 (all indirectly elected)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
7/27/2021 to 11/13/2021
percentage of women in chamber:
25.9%
expected date of next election:
July 2026

South Africa

chamber name:
National Council of Provinces
number of seats:
90 (all appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
5/29/2024
percentage of women in chamber:
44.4%
expected date of next election:
June 2029

note: the Council has special powers to protect regional interests, including safeguarding cultural and linguistic traditions among ethnic minorities

South Sudan

chamber name:
Council of States (Al-Watani)
number of seats:
100 (all appointed)
scope of elections:
full renewal
most recent election date:
8/2/2021
percentage of women in chamber:
32.1%
expected date of next election:
December 2026

Togo

chamber name:
Senate (Sénat)
number of seats:
61 (41 directly elected; 20 appointed)
scope of elections:
full renewal
term in office:
6 years
most recent election date:
2/15/2025
parties elected and seats per party:
  • Union for the Republic (UNIR) (34);
  • Independents (3);
  • Other (4)
percentage of women in chamber:
24.6%
expected date of next election:
February 2031

Tunisia

chamber name:
National Council of Regions and Districts
number of seats:
77 (all indirectly elected)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
4/19/2024
percentage of women in chamber:
13%
expected date of next election:
April 2029

Zimbabwe

chamber name:
Senate
number of seats:
80 (60 directly elected; 20 indirectly elected)
electoral system:
proportional representation
scope of elections:
full renewal
term in office:
5 years
most recent election date:
45161
parties elected and seats per party:
ZANU-PF (33); Citizens Coalition for Change (CCC) (27)
percentage of women in chamber:
44.3%
expected date of next election:
August 2028

note: 18 seats are reserved for the National Council Chiefs, and 2 reserved for members with disabilities

Asia

9 entries

Bhutan

chamber name:
National Council (Gyelyong Tshogde)
number of seats:
25 (20 directly elected; 5 appointed)
electoral system:
plurality/majority
scope of elections:
full renewal
term in office:
0 years
most recent election date:
4/20/2023
parties elected and seats per party:
N/A; note - the National Council is not party-based
percentage of women in chamber:
12%
expected date of next election:
April 2028

India

chamber name:
Council of States (Rajya Sabha)
number of seats:
245 (233 indirectly elected; 12 appointed)
scope of elections:
partial renewal
term in office:
6 years
most recent election date:
1/12/2024 to 6/30/2024
percentage of women in chamber:
16.7%
expected date of next election:
January 2026

Japan

chamber name:
House of Councillors (Sangiin)
number of seats:
248 (all directly elected)
electoral system:
mixed system
scope of elections:
partial renewal
term in office:
6 years
most recent election date:
10/27/2024
parties elected and seats per party:
  • Liberal Democratic Party (LDP) (39);
  • Constitutional Democratic Party of Japan (22);
  • Democratic Party for the People (17);
  • Sanseito (14);
  • Komeito (8);
  • Nippon Ishin (Japan Innovation Party) (7);
  • Independents (8);
  • Other (10)
percentage of women in chamber:
29.4%
expected date of next election:
June 2028

Kazakhstan

chamber name:
Senate
number of seats:
50 (40 indirectly elected; 10 appointed)
scope of elections:
partial renewal
term in office:
6 years
most recent election date:
1/14/2023
percentage of women in chamber:
20%
expected date of next election:
January 2026

Nepal

chamber name:
National Assembly (Rastriya Sabha)
number of seats:
59 (56 indirectly elected; 3 appointed)
scope of elections:
partial renewal
term in office:
6 years
most recent election date:
1/25/2024
percentage of women in chamber:
37.3%
expected date of next election:
January 2026

Pakistan

chamber name:
Senate
number of seats:
96 (all indirectly elected)
scope of elections:
partial renewal
term in office:
6 years
most recent election date:
4/2/2024
percentage of women in chamber:
18.8%
expected date of next election:
March 2027

Russia

chamber name:
Council of the Federation (Soviet Federatsii)
number of seats:
170 (all appointed)
percentage of women in chamber:
18.5%

Tajikistan

chamber name:
National Assembly (Majlisi milli)
number of seats:
33 (25 indirectly elected; 8 appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
3/28/2025
percentage of women in chamber:
30.3%
expected date of next election:
March 2030

Uzbekistan

chamber name:
Senate (Senat)
number of seats:
65 (56 indirectly elected; 9 appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
10/27/2024
percentage of women in chamber:
24.6%
expected date of next election:
November 2029

Central America and the Caribbean

11 entries

Antigua and Barbuda

chamber name:
Senate
number of seats:
17 (all appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
2/17/2023
percentage of women in chamber:
41.2%
expected date of next election:
February 2028

Bahamas, The now The Bahamas

chamber name:
Senate
number of seats:
16 (all appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
10/6/2021
percentage of women in chamber:
31.3%
expected date of next election:
October 2026

Barbados

chamber name:
Senate
number of seats:
21 (all appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
2/4/2022
percentage of women in chamber:
33.3%
expected date of next election:
February 2027

Belize

chamber name:
Senate
number of seats:
13 (all appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
5/9/2025
percentage of women in chamber:
35.7%
expected date of next election:
May 2030

Dominican Republic

chamber name:
Senate (Senado)
number of seats:
32 (all directly elected)
electoral system:
proportional representation
scope of elections:
full renewal
term in office:
4 years
most recent election date:
5/19/2024
parties elected and seats per party:
  • Modern Revolutionary Party (PRM) and its allies (24);
  • People’s Force (FP) and its allies (3);
  • Other (5)
percentage of women in chamber:
12.5%
expected date of next election:
May 2028

Grenada

chamber name:
Senate
number of seats:
13 (all appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
8/31/2022
percentage of women in chamber:
30.8%
expected date of next election:
August 2027

Haiti

chamber name:
Senate (Sénat)
number of seats:
30 (all directly elected)
electoral system:
plurality/majority
scope of elections:
partial renewal
term in office:
6 years
most recent election date:
11/20/2016 to 1/29/2017
parties elected and seats per party:
  • Haitian Tet Kale Party (PHTK) (9);
  • Truth (Vérité) (3);
  • Konvansyon Inite Demokratik (KID) (2);
  • Bouclier (2);
  • Ayiti an aksyon (AAA) (2);
  • Other (10)
expected date of next election:
August 2026

Jamaica

chamber name:
Senate
number of seats:
21 (all appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
9/18/2025
percentage of women in chamber:
33.3%
expected date of next election:
September 2030

Puerto Rico

chamber name:
Senate (Senado)
number of seats:
30 (directly elected)
electoral system:
plurality/majority
scope of elections:
full renewal
term in office:
4 years
most recent election date:
11/3/2020
parties elected and seats per party:
  • PPD (12);
  • NP (10);
  • MVC (2);
  • PD (1);
  • PIP (1);
  • independent (1)
percentage of women in chamber:
48.1%
expected date of next election:
November 2024

Saint Lucia

chamber name:
Senate
number of seats:
11 (all appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
8/17/2021
percentage of women in chamber:
54.5%
expected date of next election:
December 2025

Trinidad and Tobago

chamber name:
Senate
number of seats:
31 (all appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
5/23/2025
percentage of women in chamber:
25.8%
expected date of next election:
May 2030

Europe

17 entries

Austria

chamber name:
Federal Council (Bundesrat)
number of seats:
60 (all indirectly elected)
parties elected and seats per party:
  • People's Party (OVP) (22);
  • Social Democratic Party (SPO) (18);
  • Freedom Party (16);
  • Greens (3);
  • NEOS (New Austria) (1)
percentage of women in chamber:
46.7%

Belarus

chamber name:
Council of the Republic (Soviet Respubliki)
number of seats:
65 (56 indirectly elected; 8 appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
4/4/2024
percentage of women in chamber:
30.5%
expected date of next election:
March 2029

Belgium

chamber name:
Senate (Sénat - Senaat - Senat)
number of seats:
60 (all indirectly elected)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
7/18/2024
percentage of women in chamber:
47.5%
expected date of next election:
July 2029

Bosnia and Herzegovina

chamber name:
House of Peoples (Dom Naroda)
number of seats:
15 (all appointed)
scope of elections:
full renewal
term in office:
4 years
most recent election date:
10/2/2022
percentage of women in chamber:
6.7%
expected date of next election:
February 2027

Czechia

chamber name:
Senate (Senat)
number of seats:
81 (all directly elected)
electoral system:
plurality/majority
scope of elections:
partial renewal
term in office:
6 years
most recent election date:
9/20/2024 to 9/28/2024
parties elected and seats per party:
  • Civic Democratic Party (ODS) (8);
  • Christian Democratic Union - Czechoslovak People's Party (KDU - CSL) (7);
  • TOP 09 (3);
  • ANO 2011 (3);
  • Independents (2);
  • Other (4)
percentage of women in chamber:
21.3%
expected date of next election:
September 2026

France

chamber name:
Senate (Sénat)
number of seats:
348 (all indirectly elected)
scope of elections:
partial renewal
term in office:
6 years
most recent election date:
6/30/2024 to 7/7/2024
percentage of women in chamber:
37.1%
expected date of next election:
September 2026

note 1: of the 348 Senate seats, 328 seats are for metropolitan France, overseas departments, and regions of Guadeloupe, Martinique, French Guiana, Reunion, and Mayotte; the remainder of the seats include 2 for New Caledonia, 2 for French Polynesia, 1 for Saint-Pierre and Miquelon, 1 for Saint-Barthelemy, 1 for Saint-Martin, 1 for Wallis and Futuna, and 12 for French nationals abroad

note 2: Senate members are indirectly elected by departmental electoral colleges, using absolute majority vote in two rounds if needed for departments with 1-3 members, and proportional representation vote in departments with 4 or more members

Germany

chamber name:
Federal Council (Bundesrat)
number of seats:
69 (all appointed)
parties elected and seats per party:
  • SPD 23;
  • CDU 17;
  • Green Party 15;
  • Left Party 4;
  • CSU 3;
  • FW 3;
  • FDP 2;
  • other 2
percentage of women in chamber:
34.8%

Ireland

chamber name:
Senate (Seanad Éireann - Senate)
number of seats:
60 (49 indirectly elected; 11 appointed)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
11/29/2024
parties elected and seats per party:
  • Fianna Fail (19);
  • Fine Gael (18);
  • Sinn Fein (6);
  • Independents (12);
  • other (5)
percentage of women in chamber:
45%
expected date of next election:
January 2030

Isle of Man

chamber name:
Legislative Council
number of seats:
11 (3 appointed, 8 indirectly elected)
scope of elections:
partial renewal
term in office:
4 years
most recent election date:
3/14/2023
percentage of women in chamber:
36.4%
expected date of next election:
March 2028

Italy

chamber name:
Senate (Senato della Repubblica)
number of seats:
205 (200 directly elected; 5 appointed)
electoral system:
mixed system
scope of elections:
full renewal
term in office:
5 years
most recent election date:
9/25/2022
parties elected and seats per party:
  • Coalition Brothers of Italy (FdI) - Lega - Forza Italia - Us Moderates (Noi moderati, NM) (115);
  • Democratic Party - Democratic and Progressive Italy (PD-IDP) - Greens and Left Alliance (AVS) - +EUROPA" - Civic Commitment (IC) (44);
  • Five Star Movement (M5s) (28);
  • Other (13)
percentage of women in chamber:
36.3%
expected date of next election:
September 2027

Netherlands

chamber name:
Senate (Eerste Kamer der Staten-Generaal)
number of seats:
75 (all indirectly elected)
scope of elections:
full renewal
term in office:
4 years
most recent election date:
5/30/2023
percentage of women in chamber:
40%
expected date of next election:
May 2027

Poland

chamber name:
Senate (Senat)
number of seats:
100 (all directly elected)
electoral system:
plurality/majority
scope of elections:
full renewal
term in office:
4 years
most recent election date:
10/15/2023
parties elected and seats per party:
  • Civic Coalition (KO) (41);
  • Law and Justice (PiS) (34);
  • The Third Way (11);
  • The New Left (Nowa Lewica) (9);
  • Independents (5)
percentage of women in chamber:
19%
expected date of next election:
October 2027

Romania

chamber name:
Senate (Senatul)
number of seats:
136 (all directly elected)
electoral system:
proportional representation
scope of elections:
full renewal
term in office:
4 years
most recent election date:
12/1/2024
parties elected and seats per party:
  • Social Democratic Party (PSD) (36);
  • Alliance for the Union of Romanians (AUR) (28);
  • National Liberal Party (PNL) (22);
  • Save Romania Union (USR) (19);
  • S.O.S. Romania (12);
  • Democratic Union of Hungarians in Romania (UDMR) (10);
  • Party of Young People (POT) (7)
percentage of women in chamber:
20.9%
expected date of next election:
November 2028

Slovenia

chamber name:
National Council (Drzavni Svet)
number of seats:
40 (all indirectly elected)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
11/23/2022 to 11/24/2022
percentage of women in chamber:
17.5%
expected date of next election:
November 2027

note: the National Council is primarily an advisory body with limited legislative powers

Spain

chamber name:
Senate (Senado)
number of seats:
265 (208 directly elected; 57 indirectly elected)
electoral system:
mixed system
scope of elections:
full renewal
term in office:
4 years
most recent election date:
7/23/2023
parties elected and seats per party:
  • People's Party (PP) (120);
  • Spanish Socialist Workers' Party (PSOE) (72);
  • Other (16)
percentage of women in chamber:
42.5%
expected date of next election:
July 2027

Switzerland

chamber name:
Council of States (Ständerat - Conseil des Etats - Consiglio degli Stati)
number of seats:
46 (all directly elected)
electoral system:
other systems
scope of elections:
full renewal
term in office:
4 years
most recent election date:
10/22/2023
parties elected and seats per party:
  • Centre Party (15);
  • FDP/The Liberals (FDP/PLR) (11);
  • Socialist Party (SP/PS) (9);
  • Swiss People's Party (SVP/UDC) (6);
  • Green Party (GPS/PES) (3);
  • Other (2)
percentage of women in chamber:
33.3%
expected date of next election:
October 2027

United Kingdom

chamber name:
House of Lords
number of seats:
800 (all appointed)
parties elected and seats per party:
  • Conservative Party (286);
  • Labour Party (212);
  • Liberal Democrats (76);
  • Crossover (Independents) 180;
  • other (6)
percentage of women in chamber:
31%

note: the number of total seats in the House of Lords does not include ineligible members or members on leave of absence

Middle East

4 entries

Bahrain

chamber name:
Shura Council (Majlis Al-Shura)
number of seats:
40 (all appointed)
scope of elections:
full renewal
term in office:
4 years
most recent election date:
11/27/2022
percentage of women in chamber:
25%
expected date of next election:
November 2026

Jordan

chamber name:
Senate (Majlis Al-Aayan)
number of seats:
69 (all appointed)
scope of elections:
full renewal
term in office:
4 years
most recent election date:
10/24/2024
percentage of women in chamber:
14.5%
expected date of next election:
October 2028

Oman

chamber name:
State Council (Majles Addawla)
number of seats:
87 (all appointed)
scope of elections:
full renewal
term in office:
4 years
most recent election date:
10/29/2023
percentage of women in chamber:
20.9%
expected date of next election:
November 2027

Yemen

chamber name:
Shura Council (Majlis Alshoora)
number of seats:
111 (all appointed)
scope of elections:
full renewal
most recent election date:
4/28/2001
percentage of women in chamber:
1.1%

note: the Shura Council serves in an advisory role to the president; it has no legislative responsibilities

North America

4 entries

Bermuda

chamber name:
Senate
number of seats:
11 (appointed)
term in office:
5 years
most recent election date:
2022
percentage of women in chamber:
63.6%
expected date of next election:
2027

Canada

chamber name:
Senate
number of seats:
105 (all appointed)
percentage of women in chamber:
54.8%

Mexico

chamber name:
Senate (Cámara de Senadores)
number of seats:
128 (all directly elected)
electoral system:
mixed system
scope of elections:
full renewal
term in office:
6 years
most recent election date:
6/2/2024
parties elected and seats per party:
  • National Regeneration Movement (MORENA) (60);
  • National Action Party (PAN) (22);
  • Institutional Revolutionary Party (PRI) (16);
  • Ecologist Green Party of Mexico (PVEM) (14);
  • Labour Party (PT) (9);
  • Other (7)
percentage of women in chamber:
50%
expected date of next election:
June 2030

United States

chamber name:
Senate
number of seats:
100 (all directly elected)
electoral system:
plurality/majority
scope of elections:
partial renewal
term in office:
6 years
most recent election date:
11/5/2024
parties elected and seats per party:
Republican Party (15); Democratic Party (19)
percentage of women in chamber:
26%
expected date of next election:
November 2026

Oceania

2 entries

Australia

chamber name:
Senate
number of seats:
76 (all directly elected)
electoral system:
proportional representation
scope of elections:
partial renewal
term in office:
6 years
most recent election date:
5/3/2025
parties elected and seats per party:
  • Australian Labor Party (ALP) (16);
  • Liberal (6);
  • The Greens (6);
  • Liberal/Nationals (4);
  • Pauline Hanson's One Nation (3);
  • Liberal National Party of Queensland (2);
  • Other (3)
percentage of women in chamber:
56.6%
expected date of next election:
May 2028

Palau

chamber name:
Senate
number of seats:
15 (all directly elected)
electoral system:
plurality/majority
scope of elections:
full renewal
term in office:
4 years
most recent election date:
11/5/2024
percentage of women in chamber:
13.3%
expected date of next election:
November 2028

South America

7 entries

Argentina

chamber name:
Senate (Senado)
number of seats:
72 (all directly elected)
electoral system:
proportional representation
scope of elections:
partial renewal
term in office:
6 years
most recent election date:
10/22/2023
parties elected and seats per party:
  • Union for the Homeland (UP) (9);
  • Freedom Advances (LLA) (6);
  • Together for Change (JxC/Juntos) (2);
  • Front for the Renewal of Social Concord – Federal Innovation (2);
  • Federal Renewal (2);
  • For Santa Cruz (2);
  • Other (1)
percentage of women in chamber:
45.8%
expected date of next election:
October 2025

Bolivia

chamber name:
Chamber of Senators (Cámara de Senadores)
number of seats:
36 (all directly elected)
electoral system:
proportional representation
scope of elections:
full renewal
term in office:
5 years
most recent election date:
8/17/2025
parties elected and seats per party:
  • Christian Democratic Party (PDC) (16);
  • LIBRE (12);
  • Unity (7);
  • Other (1)
percentage of women in chamber:
58.3%
expected date of next election:
August 2030

Brazil

chamber name:
Federal Senate (Senado Federal)
number of seats:
81 (all directly elected)
electoral system:
plurality/majority
scope of elections:
partial renewal
term in office:
8 years
most recent election date:
10/2/2022
parties elected and seats per party:
  • Liberal Party (PL) (8);
  • Brazil Union (União) (5);
  • Workers' Party (PT) (4);
  • Progressive Party (PP) (3);
  • Social Democratic Party (PSD) (2);
  • Republicans (Republicanos) (2);
  • Other (3)
percentage of women in chamber:
19.8%
expected date of next election:
October 2026

Chile

chamber name:
Senate (Senado)
number of seats:
50 (all directly elected)
electoral system:
proportional representation
scope of elections:
partial renewal
term in office:
8 years
most recent election date:
11/21/2021
parties elected and seats per party:
  • Chile Podemos (Empowering Chile", CP +) (12);
  • New Social Pact (NPS) (8);
  • Approving Dignity (AD) (4);
  • Independents (2);
  • Other (1)
percentage of women in chamber:
32%
expected date of next election:
November 2025

Colombia

chamber name:
Senate (Senado de la República)
number of seats:
108 (all directly elected)
electoral system:
proportional representation
scope of elections:
full renewal
term in office:
4 years
most recent election date:
3/13/2022
parties elected and seats per party:
  • Historic Pact (20);
  • Conservative Party (CP) (15);
  • Liberal Party (PL) (14);
  • Green Alliance - Hope Centre coalition (13);
  • Democratic Centre (CD) (13);
  • Radical Change (CR) (11);
  • Union Party for the People “Partido de la U” (10);
  • Other (4)
percentage of women in chamber:
31.4%
expected date of next election:
March 2026

Paraguay

chamber name:
Senate (Cámara de Senadores)
number of seats:
45 (all directly elected)
electoral system:
proportional representation
scope of elections:
full renewal
term in office:
5 years
most recent election date:
4/30/2023
parties elected and seats per party:
  • National Republican Association/Colorado Party (ANR) (23);
  • Authentic Radical Liberal Party (PLRA) - Alliances (12);
  • National Crusade Party (CN) (5);
  • Other (5)
percentage of women in chamber:
22.2%
expected date of next election:
April 2028

Uruguay

chamber name:
Senate (Cámara de Senadores)
number of seats:
31 (all directly elected)
electoral system:
proportional representation
scope of elections:
full renewal
term in office:
5 years
most recent election date:
10/27/2024
parties elected and seats per party:
  • Broad Front (FA) (16);
  • National Party (PN) (9);
  • Colorado Party (PC) (5)
percentage of women in chamber:
32.3%
expected date of next election:
October 2029

Southeast Asia

4 entries

Cambodia

chamber name:
Senate
number of seats:
62 (60 indirectly elected; 2 appointed)
scope of elections:
full renewal
term in office:
6 years
most recent election date:
2/25/2024
percentage of women in chamber:
19.4%
expected date of next election:
February 2030

Malaysia

chamber name:
Senate (Dewan Negara)
number of seats:
70 (26 indirectly elected; 44 appointed)
percentage of women in chamber:
16.1%

Philippines

chamber name:
Senate (Senado)
number of seats:
24 (all directly elected)
electoral system:
plurality/majority
scope of elections:
partial renewal
term in office:
6 years
most recent election date:
5/12/2025
parties elected and seats per party:
  • Nationalist People's Coalition (NPC) (2);
  • Nacionalista Party (NP) (3);
  • Partido Demokratiko Pilipino-Laban (PDP-Laban) (2);
  • Lakas- CMD party (1);
  • Katipunan ng Nagkakaisang Pilipino (KANP) (1);
  • Liberal Party (1);
  • Independents (2)
percentage of women in chamber:
20.8%
expected date of next election:
May 2028

Thailand

chamber name:
Senate (Wuthisapha)
number of seats:
200 (all indirectly elected)
scope of elections:
full renewal
term in office:
5 years
most recent election date:
6/9/2024 to 6/26/2024
percentage of women in chamber:
22.5%
expected date of next election:
June 2029

note: Senate members are indirectly elected from 20 eligible groups of professions, including agriculture, artists or athletes, business owners, education, employees or workers, independent professionals, industrialists, law and justice, mass communication, public health, science and technology, tourism-related professions, women, and elderly, disabled, or ethnic groups

Cite this page

Central Intelligence Agency. The World Factbook 2025, “Legislative branch - upper chamber”, all entries. Archived by The Factbook, thefactbook.org/fields/legislative-branch-upper-chamber.

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