Lennox is a city in Lincoln County, South Dakota, United States. Located 20 milles south west from largest South Dakota city, Sioux Falls. The population was 2,111 at the 2010 census.
The city has the name of Ben Lennox, private secretary to the general manager to the Milwaukee Railroad.
Lennox is located at 43°21′14″N 96°53′44″W (43.353769, -96.895489).
According to the United States Census Bureau, the city has a total area of 1.31 square miles (3.39 km2), all of it land.
Lennox has been assigned the ZIP code 57039 and the FIPS place code 36380.
There are 4 July festivities each year, including the firecracker road race in the morning and a parade afterward.
As of the census of 2010, there were 2,111 people, 842 households, and 542 families living in the city. The population density was 1,611.5 inhabitants per square mile (622.2/km2). There were 914 housing units at an average density of 697.7 per square mile (269.4/km2). The racial makeup of the city was 98.2% White, 0.1% African American, 0.6% Native American, 0.4% Asian, and 0.6% from two or more races. Hispanic or Latino of any race were 1.1% of the population.