Lemmon Map
Lemmon is a city in Perkins County, South Dakota, United States. The population was 1,227 at the 2010 census.
Lemmon is located at 45°56?22?N 102°9?36?W / 45.93944°N 102.16°W / 45.93944; -102.16 (45.939375, -102.160128).
According to the United States Census Bureau, the city has a total area of 1.0 square miles (2.6 km²), all of it land.