Notus is a city in Canyon County, Idaho, United States. The population was 458 at the 2000 census. It is part of the Boise City–Nampa, Idaho Metropolitan Statistical Area.
Notus is located at 43°43′34″N 116°48′7″W / 43.72611°N 116.80194°W / 43.72611; -116.80194 (43.726082, -116.801866).
According to the United States Census Bureau, the city has a total area of 0.4 square miles (1.0 km²), all of it land.