St Just in Roseland parish covers 2,650 acres (1,072 hectares) on the western side of the Roseland Peninsula, south of Truro, Cornwall.   

The whole parish is designated an Area of Outstanding Natural Beauty. It is a lansdcape of rolling farmland, bounded on the west by the waters of the Carrick Roads. The South West Coastal Path runs on this western side and following this path you see the village of St Just in Roseland on the ridgeline above St Just Pool, a Site of Special Scientific Interest. Here on the water's edge sits the 12th century St Just in Roseland Church. Grade I listed, this beautiful church is surrounded by subtropical planting described by Sir John Betjeman as "to many people the most beautiful churchyard on earth". The Coastal Path continues to St Mawes and Henry VIII's imposing coastal fortress, the Grade I listed St Mawes Castle.

St Mawes is the main settlement (pop. 870, number of dwellings 670, 35% full time residences), the second is the village of St Just in Roseland (pop. 330, dwellings 210, full time 65%). These with the hamlets of Trethewell and Commerrans and the outlying farms make up the parish. A high proportion of residents are retired, St Mawes primary school is well respected and the parish council is actively encouraging further development of affordable housing to keep a full mix of ages and families in the parish.