South Barrington is a city located in Illinois. With a 2020 population of 5,020, it is the 328th largest city in Illinois and the 4757th largest city in the United States . South Barrington is currently growing at a rate of 0.24% annually and its population has increased by 9.97% since the most recent census, which recorded a population of 4,565 in 2010. South Barrington reached it's highest population of 5,020 in 2021. Spanning over 8 miles, South Barrington has a population density of 676 people per square mile.
The average household income in South Barrington is $184,393 with a poverty rate of 3.96%. The median rental costs in recent years comes to - per month, and the median house value is $802,200. The median age in South Barrington is 48.3 years, 46.9 years for males, and 50 years for females.