South English is a city in Keokuk County, Iowa, United States. The population was 212 at the 2010 census. It is named for the English River.
South English is located at 41°27′8″N 92°5′23″W (41.452199, -92.089649).
According to the United States Census Bureau, the city has a total area of 0.30 square miles (0.78 km2), all of it land.
As of the census of 2010, there were 212 people, 88 households, and 58 families living in the city. The population density was 706.7 inhabitants per square mile (272.9/km2). There were 101 housing units at an average density of 336.7 per square mile (130.0/km2). The racial makeup of the city was 99.1% White and 0.9% from two or more races. Hispanic or Latino of any race were 1.9% of the population.
There were 88 households of which 30.7% had children under the age of 18 living with them, 47.7% were married couples living together, 10.2% had a female householder with no husband present, 8.0% had a male householder with no wife present, and 34.1% were non-families. 29.5% of all households were made up of individuals and 12.5% had someone living alone who was 65 years of age or older.