At Stake in this Election: 

• 24 out of 72 seats in the Argentinian Senate 

Government Structure:  

• Chief of State: President Javier Gerardo MILEI (since 10 December 2023) 

• Head of Government: President Javier Gerardo MILEI (since 10 December 2023) 

• Assembly: bicameral National Congress (Congreso de la nación), comprised of the 257-seat Chamber of Deputies (Cámara de Diputados) and the 72-seat Senate (Senado). 

Electoral System: 

• The President is jointly and directly elected with the Vice President by majority vote in two rounds if needed. The President serves a 4-year term, renewable once. The President must receive 45% of the vote to win the first round. 

• Members of the Chamber of Deputies are directly elected via proportional representation to serve 4 year terms. There are no term limits. 

• Members of the Senate are directly elected via proportional representation to serve 6-year terms. There are no term limits. 

Last Election: 

The last Senate election was held on October 22, 2023. Union for the Homeland won 9 seats; Freedom Advances won 6 seats. All other parties won 2 seats or fewer. Voter turnout was 78%.  

Information for Voters: 

Elecciones 2025 (in Spanish) 

Key Deadlines:  

• Candidate filing deadline: 7 August 2025 

• Voter registration deadline: 19 April 2025 

Main Parties in this Election: 

• Homeland Force / Fuerza Patria (FP)* 

• • Leader:  Multiple leaders 

• • Seats won in the last election: 9 seats out of 72 

• Freedom Advances / La Libertad Avanza (LLA) 

• • Leader: Javier MILEI  

• • Seats won in the last election: 6 seats out of 72 

*Note: this party was formerly called Union for the Homeland (Unión por la Patria).   

Population and Registered Voters: 

• Population: 45,696,159 (2024 estimate) 

• Registered Voters: 16,486,275 (2023 estimate) 

Gender Data: 

• Female Population: 23,015,446 (2024 estimate) 

• CEDAW Status: Signed 17 July 1980, Ratified 15 July 1985 

• Gender Quota: Yes, legislated and voluntary quotas are in place for both houses that aim to have 50% of legislators be women. 

• Female Candidates in this election: Yes 

• Number of Female Legislators (pre-election): 109 out of 257 seats (42.4%) in the Chamber of Deputies and 33 out of 72 seats (45.8%) in the Senate  

• Human Development Index (HDI) Position: 0.865 (Very High) (2023 estimate) 

• Social Institutions and Gender Index (SIGI) Categorization: 17.7 (2025 estimate)  

Disability Data: 

• CRPD Status: Signed 30 March 2007, Ratified 2 September 2008 

• Projected population with a disability: 7,311,385 (2024 estimate) 

IFES Resources: 

• ElectionJudgements: Yes, 1 judgement