ZILS is connected to the national and international railway network through electrified railway starting at the sea port. There are dedicated railway lines connecting some areas of the Industrial Zone to the national grid.

The train connection from ZILS to the Sines Port the network is 17.03 km long There are 11.60 km of railway within ZILS´s perimeter.

ZILS is served by Sines railway line (72 km) connecting Sines port to the south line (Lisbon - Algarve). Railway connections to Spain will be improved soon, reducing distances and travel time.