While Pallejá is primarily a residential town, its economy has been shaped by both agriculture and light manufacturing. Historically, the fertile lands along the Llobregat River supported a thriving agricultural sector, which remains important today, with local products such as olives, fruits, and vegetables still cultivated in the area. The town has also embraced industrial development in recent years, with small-scale manufacturing and services becoming key contributors to the local economy.
Tourism is gradually becoming more significant, particularly as the town positions itself as a destination for cultural events and rural tourism. Visitors are drawn to the area’s tranquil environment and the opportunity to experience authentic Catalonian culture, away from the busier tourist spots in nearby Barcelona.