South Haven is a city located in Kansas. With a 2020 population of 345, it is the 339th largest city in Kansas and the 14803rd largest city in the United States. South Haven is currently declining at a rate of -0.29% annually and its population has decreased by -4.96% since the most recent census, which recorded a population of 363 in 2010. South Haven reached it's highest population of 364 in 2010. Spanning over 1 miles, South Haven has a population density of 345 people per square mile.
The average household income in South Haven is $53,330 with a poverty rate of 15.79%. The median rental costs in recent years comes to $544 per month, and the median house value is $56,300. The median age in South Haven is 37 years, 38 years for males, and 36.7 years for females. For every 100 females there are 76.3 males.