^ abStations in Middlesbrough, Redcar and Cleveland, and Stockton-on-Tees are considered part of North East England, while stations in the unitary areas of York and North Yorkshire are considered part of Yorkshire and the Humber.
^Stations in North Lincolnshire and North East Lincolnshire are considered part of Yorkshire and the Humber, while all other stations are considered part of the East Midlands.
This template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible.
To change this template's initial visibility, the |state=parameter may be used:
{{Railway stations served by Northern Trains|state=collapsed}} will show the template collapsed, i.e. hidden apart from its title bar.
{{Railway stations served by Northern Trains|state=expanded}} will show the template expanded, i.e. fully visible.
