Buenos Aires Province is the only province in Argentina that is divided into localidades .
The current capital of the province is the city of La Plata , founded in 1882.The province is the only within the whole Argentina to be divided into partidos ( the rest have departamentos ) , and borders the provinces of Entre Ríos to the northeast ; Santa Fe to the north ; Córdoba to the northwest , La Pampa to the west ; and Río Negro to south and west ; and the Autonomous City of Buenos Aires to the northeast .
Buenos Aires Province