By 1840 the agriculture of the area had changed from animal to arable farming and the 1861 National Census the population stood at 1,222. Due to this increase in population the railway came to Maghull in 1849, with a station on the Liverpool, Ormskirk and Preston Railway as well as the construction of the town's first police station which was set up by Lancashire County Council in 1870 and the town got a second station in 1884, Sefton and Maghull, on the newly built Cheshire Lines Committee Southport & Cheshire Lines Extension Railway to Southport, the line was an extension of the North Liverpool Extension Line. A large section of embankment has been destroyed to make space for Switch Island. In 1933 Northway (A59 road) was built, initially as a tree-lined single carriageway but dualled in the early 1960s, which bisects Maghull, taking travellers from Liverpool to Ormskirk off 'Liverpool Road'. The arrival of Northway triggered an increased rate of expansion in Maghull.