South Holland is located in Illinois. South Holland, Illinois has a population of 21,524. South Holland is less family-centric than the surrounding county with 17.34% of the households containing married families with children. The county average for households married with children is 29.73%.
The median household income in South Holland, Illinois is $72,345. The median household income for the surrounding county is $72,121 compared to the national median of $69,021. The median age of people living in South Holland is 41.4 years.
The average high temperature in July is 84.2 degrees, with an average low temperature in January of 18.2 degrees. The average rainfall is approximately 38.5 inches per year, with 31.4 inches of snow per year.