St Helens with its single platform was the only intermediate stop on the branch line that connected Brading to the coast at Bembridge.
Opened in 1882, when the area was the Island's main port, it ran with ever-dwindling passengers until 1953. Pomeroy described the station thus:<blockquote> An imposing structure with tall chimneys and elegant dormers, particularly pleasing to the eye.</blockquote>. After closure the station building was converted to a private house.
From 1885 to 1888 St Helens was the Isle of Wight end of a Freight only Train ferry Service. This connected the Isle of Wight Rail Network with Mainland Great Britain's network at Langston railway station, using the Former Firth of Tay Train Ferry TF Carrier.
In 1931 the stationmaster, Thomas George Clayton Weeks was sentenced to 18 monthsâ imprisonment for theft and forgery of receipts. He had created fictitious wage sheets for casual workers at the Southern Railway quay and robbed the company of around ã3,000 () in four years. It was reported that he had been spending about ã5 () per week on drink, and made presents of joints of beef to various villagers, spending over ã400 () at one butchers shop in twelve months.