Runcorn is an industrial town and cargo port within the borough of Halton in the ceremonial county of Cheshire, England. In 2010, its population was estimated to be 61,000. The town is on the southern bank of the River Mersey where the estuary narrows to form Runcorn Gap. Directly to the north across the Mersey is the town of Widnes. Upstream and 8 miles (12.9 km) to the northeast is the town of Warrington and downstream 16 miles (26 km) to the west is the city of Liverpool.
Runcorn railway station is on a branch of the West Coast Main Line. It provides frequent services to London (Euston), Liverpool and Birmingham. The A533 road passes through the town from the south, crossing the Runcorn Gap over the Silver Jubilee Bridge, the lowest bridge crossing of the River Mersey. The Manchester Ship Canal runs between the town and the River Mersey and the Bridgewater Canal passes through and ends in the town at its junction with the Manchester Ship Canal.