South Haven is a city in Sumner County, Kansas, United States.

[4] Unlike other paired towns in Kansas that are located adjacent to one another (e.g. Newton and North Newton or Hutchinson and South Hutchinson), South Haven is about 80 miles from Haven.

According to the United States Census Bureau, the city has a total area of 0.79 square miles (2.05 km2), all of it land.

There were 172 housing units at an average density of 217.7 per square mile (84.1/km2).

29.6% of all households were made up of individuals, and 12.7% had someone living alone who was 65 years of age or older.

36.8% of all households were made up of individuals, and 15.3% had someone living alone who was 65 years of age or older.

The community is served by South Haven USD 509 public school district.