- Aruja is a city located in the state of Sao Paulo, Brazil. It is part of the metropolitan region of Sao Paulo and has a population of approximately 90,000 people. Aruja is known for its agricultural production, particularly fruits and vegetables, and is also a popular destination for ecotourism due to its natural parks and scenic landscapes. The city has a rich history, with several historical sites and cultural attractions to explore. Aruja is also known for its traditional festivals and events, including the Festa de Sao Benedito, which celebrates the city's Afro-Brazilian heritage.