St. Peter (Romansh: Son Peder) is a village in the district of Plessur in the canton of Graubünden, Switzerland.

The church and the village section of Laeschgas belonged to Pfäfers Abbey.

Of the rest of the land, 4.2% is settled (buildings or roads) and the remainder (4.7%) is non-productive (rivers, glaciers or mountains).

[3] The village is located in the Schanfigg sub-district of the Plessur district in the northern slope of the mid-Schanfigg at an elevation of 1,160 m (3,810 ft).

[4] The age distribution, as of 2004[update], in St. Peter is; 7 children or 4.5% of the population are between 0 and 9 years old and 16 teenagers or 10.4% are between 10 and 19.

[5] In the 2007 federal election the most popular party was the SVP which received 67.9% of the vote.