2025 Buenos Aires provincial election
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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.[1] In addition, councilors and school counselors were elected in the municipalities of Buenos Aires.
14.90pp) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
7 September 2025
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46 of the 92 seats in the Chamber of Deputies 23 of the 46 seats in the Senate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Registered | 14,376,592 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Turnout | 61.04% ( 14.90pp) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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%.[2]
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.[3]
Election schedule
| Date[4] | Event |
|---|---|
| July 9, 2025 | Deadline for submitting electoral alliances. |
| July 19, 2025 | Deadline for the submission of candidates for provincial deputies and senators. |
| August 8, 2025 | Presentation of party ballots. |
| September 5, 2025 | End of the election campaign period, broadcasting of campaign ads, and publication of polls and election surveys. |
| September 7, 2025 | Holding of provincial elections. |
Positions to Choose From
| Electoral Section |
Chamber of Deputies | Senate | ||
|---|---|---|---|---|
| Deputies | To be Renewed | Senators | To be Renewed | |
| 1 | 15 | — | 8 | 8 |
| 2 | 11 | 11 | 5 | — |
| 3 | 18 | 18 | 9 | — |
| 4 | 14 | — | 7 | 7 |
| 5 | 11 | — | 5 | 5 |
| 6 | 11 | 11 | 6 | — |
| 7 | 6 | — | 3 | 3 |
| 8 - Capital | 6 | 6 | 3 | — |
| Total | 92 | 46 | 46 | 23 |
Results
Chamber of Deputies
 | ||||
|---|---|---|---|---|
| Party | Votes | % | Seats | |
| Fuerza Patria | 2,065,415 | 49.65 | 21 | |
| La Libertad Avanza | 1,272,584 | 30.59 | 18 | |
| Somos Buenos Aires | 238,708 | 5.74 | 5 | |
| Workers' Left Front | 211,035 | 5.07 | 2 | |
| Nuevos Aires | 98,534 | 2.37 | – | |
| Unión y Libertad | 60,057 | 1.44 | – | |
| Potencia | 50,565 | 1.22 | – | |
| Libertarian Party | 33,735 | 0.81 | – | |
| Unión Liberal | 24,649 | 0.59 | – | |
| Workers' Party | 24,034 | 0.58 | – | |
| Movimiento Avanzada Socialista | 21,001 | 0.50 | – | |
| Valores Republicanos | 16,746 | 0.40 | – | |
| Patriot Front | 15,715 | 0.38 | – | |
| Construyendo Porvenir | 12,356 | 0.30 | – | |
| Tiempo de Todos | 10,658 | 0.26 | – | |
| Es Con Vos, Es Con Nosotros | 3,874 | 0.09 | – | |
| Total | 4,159,666 | 100.00 | 46 | |
| Valid votes | 4,159,666 | 95.01 | ||
| Invalid/blank votes | 218,614 | 4.99 | ||
| Total votes | 4,378,280 | 100.00 | ||
| Registered voters/turnout | 7,075,220 | 61.88 | ||
| Source: [5] | ||||
Senate
 | ||||
|---|---|---|---|---|
| Party | Votes | % | Seats | |
| Fuerza Patria | 1,796,073 | 44.95 | 13 | |
| La Libertad Avanza | 1,482,513 | 37.11 | 8 | |
| Somos Buenos Aires | 280,012 | 7.01 | 2 | |
| Workers' Left Front | 144,761 | 3.62 | – | |
| Potencia | 60,177 | 1.51 | – | |
| Unión y Libertad | 50,808 | 1.27 | – | |
| Unión Liberal | 29,841 | 0.75 | – | |
| Libertarian Party | 24,956 | 0.62 | – | |
| Workers' Party | 21,561 | 0.54 | – | |
| Es Con Vos, Es Con Nosotros | 20,152 | 0.50 | – | |
| Partido Valores Republicanos | 18,093 | 0.45 | – | |
| Movimiento Avanzada Socialista | 17,604 | 0.44 | – | |
| Construyendo Porvenir | 16,819 | 0.42 | – | |
| Patriot Front | 14,927 | 0.37 | – | |
| Tiempo de Todos | 11,651 | 0.29 | – | |
| Nuevos Aires | 5,428 | 0.14 | – | |
| Total | 3,995,376 | 100.00 | 23 | |
| Valid votes | 3,995,376 | 90.88 | ||
| Invalid/blank votes | 401,132 | 9.12 | ||
| Total votes | 4,396,508 | 100.00 | ||
| Registered voters/turnout | 7,301,372 | 60.21 | ||
| Source: [5] | ||||
