Tunnelhill is a borough that is located in both Cambria and Blair Counties in Pennsylvania in the United States. The population was 409 at the 2000 census. It is part of the Altoona, PA Metropolitan Statistical Area. Tunnelhill is named after the many railroad tunnels of the Pennsylvania Railroad near here. Tunnelhill apartments for rent comparison page shows most up to date rent information on Tunnelhill apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.