The Michelle Connor actress, who joined the soap's cast in 2006, seemed to confirm rumours that she has signed a new long-term deal.
"I've been here six years now and my loyalties lie with the show. I love it," she told Soaplife. "I enjoy being part of such a great cast.
"I like that it's a tightly-run ship and it keeps me near my home, which is important."
Marsh admitted back in January that she was unsure about her Corrie future, with her contract due to come to an end in June 2012.
The 35-year-old also called for the swift return of on-screen lover Keith Duffy, who left his Weatherfield role of Ciaran McCarthy in the autumn of last year.
"I loved working with Keith Duffy who played him, and I felt that Ciaran and Michelle went really well together," she said. "I'm hoping Keith might be back at some point."
However Marsh outlined her desire for Michelle to find a new boyfriend in the near future, adding: "I think it's about time she had a new romance. It's been a while since Ciaran left."
Michelle's son Ryan was officially recast earlier this month and will appear on screen later this year.