Simpsonville is a city located in Greenville County South Carolina. With a 2020 population of 26,699, it is the 21st largest city in South Carolina and the 1444th largest city in the United States . Simpsonville is currently growing at a rate of 4.87% annually and its population has increased by 46.39% since the most recent census, which recorded a population of 18,238 in 2010. Simpsonville reached it's highest population of 26,699 in 2021. Spanning over 9 miles, Simpsonville has a population density of 2,893 people per square mile.
The average household income in Simpsonville is $83,266 with a poverty rate of 5.43%. The median rental costs in recent years comes to $1,059 per month, and the median house value is $173,400. The median age in Simpsonville is 37.8 years, 37 years for males, and 38.8 years for females.