2025 Buenos Aires provincial election

2025 Buenos Aires provincial elections

7 September 2025
  Majority party Minority party Third party
 
Party Fuerza Patria La Libertad Avanza Somos Buenos Aires
Popular vote 47.28% 33.71% 5.26%

General elections were held in Buenos Aires Province on 7 September 2025, to renew 46 seats in the Chamber of Deputies and 23 in the Senate. In addition, councilors and school counselors were elected in the municipalities of Buenos Aires.

It is the first time since the restoration of democracy in 1983 that the provincial elections in Buenos Aires were held on a date other than the national elections.

The Justicialist Party won 47% of the vote, followed by La Libertad Avanza of President Javier Milei at 34%.

The electoral victory of the left sparked widespread panic across financial markets, causing the peso to plunge by nearly 10% in a matter of hours. This sharp decline was fueled by concerns among investors about the potential downfall of President Javier Milei’s pro-market, business-friendly libertarian administration.