Pilar is a city located in the Buenos Aires Province of Argentina. It serves as a significant urban center within the metropolitan area of Greater Buenos Aires, situated to the northwest of the capital city.
The city is characterized by its proximity to the rural landscapes of the Pampas and its role as a residential and commercial hub for the surrounding region. While it maintains a distinct identity from the capital, it is integrated into the regional infrastructure, providing housing and services for the metropolitan population.