Australia
- St Peter Island, island ofSouth Australia
Canada
- St. Peter, rural community in division No. 15 (Saskatchewan)
- St. Peter, unincorporated area in Richmond County (Nova Scotia)
Germany
- St. Peter, municipality of Baden-Württemberg
United States of America
- St. Peter, locality in Fayette County (Illinois)
- St. Peter, unincorporated area in Graham County (Kansas)
- St. Peter, city in Nicollet County (Minnesota)
- St. Peter, non-incorporated area in the county of Fond du Lac (Wisconsin)