St Erth railway station is a Grade II listed station situated at Rose-an-Grouse in Cornwall, United Kingdom. It serves the nearby village of St Erth, which is about 0.75 miles away, and is the junction for the St Ives Bay Line to St Ives. On an average weekday St Erth sees up to 69 trains, 26 trains to St Ives, 22 towards Penzance and 21 towards Plymouth. This makes it the busiest station in Cornwall in terms of services and one of, if not the busiest rural stations in the UK.