Fort Mill is a city located in York County South Carolina. With a 2020 population of 27,288, it is the 20th largest city in South Carolina and the 1408th largest city in the United States . Fort Mill is currently growing at a rate of 10.09% annually and its population has increased by 152.41% since the most recent census, which recorded a population of 10,811 in 2010. Fort Mill reached it's highest population of in . Spanning over 20 miles, Fort Mill has a population density of 1,400 people per square mile.
The average household income in Fort Mill is $107,559 with a poverty rate of 6.45%. The median rental costs in recent years comes to $1,073 per month, and the median house value is $289,200. The median age in Fort Mill is 35.4 years, 35.3 years for males, and 35.5 years for females.