Legislature of Buenos Aires Province Legislatura de la Provincia de Buenos Aires
Type
Type	Bicameral
Houses	Senate Chamber of Deputies
Leadership
Senate President[a]	Verónica Magario (FDT) since 10 December 2019
1st Senate Vice President	Luis Vivona (FDT) since 10 December 2019
Chamber President	Federico Otermín (FDT) since 10 December 2019
Structure
Seats	138 46 senators 96 deputies
Senate political groups	FDT (23)   Juntos (23)
Chamber of Deputies political groups	FDT (42)   Juntos (41)   AL (3)   CF (2)   FIT (2)   17N (1)   FE (1)
Elections
Last Senate election	14 November 2021 (23 seats)
Last Chamber of Deputies election	14 November 2021 (46 seats)
Meeting place
Legislative Palace La Plata, Buenos Aires Province

The Legislature of Buenos Aires Province (Spanish: Legislatura de la Provincia de Buenos Aires) is the legislature of Buenos Aires, one of the twenty three provinces that make up Argentina. It is a bicameral body, comprising the Chamber of Deputies (made up of 92 representatives), and the Senate (with 46 representatives).^[1][2]

It is one of eight bicameral legislatures in the country.^[3][4] Members of both houses are elected by proportional representation for four-year terms in eight multi-member constituencies which span the entirety of the province's territory. As in the National Chamber of Deputies and most other provincial legislatures, elections to both houses of the legislature are held every two years, so that half of its members are up in each election.

Both houses of the Legislature convene in the Legislative Palace of Buenos Aires, in the provincial capital of La Plata. The building, a city landmark, was designed by Hannover architects Gustav Heine and Georg Hagemann in 1883 and completed in 1888.^[5]

Members of both houses of the Legislature are elected in eight multi-member districts known as "Electoral Sections" (Spanish: secciones electorales) that cover the entirety of the province's territory. The electoral sections are split along the lines of the 135 partidos of Buenos Aires Province; the 8th section (commonly known as the "Capital Electoral Section") corresponds to La Plata Partido only. The electoral sections are governed by electoral law 25,548.^[6]

Electoral Section	Partidos	Deputies	Senators	Map
First	See list Campana Escobar General Las Heras General Rodríguez General San Martín Hurlingham Ituzaingó José C. Paz Luján Malvinas Argentinas Marcos Paz Mercedes Merlo Moreno Morón Navarro Pilar San Fernando San Isidro San Miguel Suipacha Tigre Tres de Febrero Vicente López	15	8
Second	See list Arrecifes Baradero Capitán Sarmiento Carmen de Areco Colón Exaltación de la Cruz Pergamino Ramallo Rojas Salto San Andrés de Giles San Antonio de Areco San Nicolás San Pedro Zárate	11	5
Third	See list Almirante Brown Avellaneda Berazategui Berisso Brandsen Cañuelas Ensenada Esteban Echeverría Ezeiza Florencio Varela La Matanza Lanús Lobos Lomas de Zamora Magdalena Presidente Perón Punta Indio Quilmes San Vicente	18	9
Fourth	See list Alberti Bragado Carlos Casares Carlos Tejedor Chacabuco Chivilcoy Florentino Ameghino General Arenales General Pinto General Viamonte General Villegas Hipólito Yrigoyen Junín Leandro N. Alem Lincoln Nueve de Julio Pehuajó Rivadavia Trenque Lauquen	14	7
Fifth	See list Ayacucho Balcarce Castelli Chascomús Dolores General Alvarado General Belgrano General Guido General Lavalle General Madariaga General Paz General Pueyrredón La Costa Las Flores Lezama Lobería Maipú Mar Chiquita Monte Necochea Pila Pinamar Rauch San Cayetano Tandil Tordillo Villa Gesell	11	5
Sixth	See list Adolfo Alsina Adolfo Gonzales Chaves Bahía Blanca Benito Juárez Coronel Dorrego Coronel Pringles Coronel Rosales Coronel Suárez Daireaux Guaminí General Lamadrid Laprida Monte Hermoso Patagones Pellegrini Puan Saavedra Salliqueló Tres Arroyos Tres Lomas Tornquist Villarino	11	6
Seventh	See list Azul Bolívar General Alvear Olavarría Roque Pérez Saladillo Tapalqué Veinticinco de Mayo	6	3
Capital	La Plata	6	3

• List of provincial legislatures in Argentina
• Parliament of Argentina