Historically, agriculture has been the backbone of Illescas’ economy, particularly the cultivation of wheat, olives, and grapes, which are typical products of Castille-La Mancha. Today, while agriculture remains important, Illescas has diversified its economy. Manufacturing, logistics, and commerce have become significant sectors, especially due to its proximity to Madrid, which allows businesses in Illescas to serve the capital’s expansive market.
The industrial park of Illescas is a major driver of economic activity, hosting national and international companies in sectors ranging from automotive manufacturing to electronics. The city is also becoming a logistical hub thanks to its location on key transportation routes connecting central Spain.
Local products, especially olive oil and wines from the region, remain important economic contributors. Many visitors enjoy buying these high-quality products as souvenirs or gifts.