Hilton Head Island is a city located in Beaufort County South Carolina. With a 2020 population of 39,907, it is the 9th largest city in South Carolina and the 987th largest city in the United States . Hilton Head Island is currently growing at a rate of 0.06% annually and its population has increased by 7.57% since the most recent census, which recorded a population of 37,099 in 2010. Hilton Head Island reached it's highest population of 40,177 in 2017. Spanning over 69 miles, Hilton Head Island has a population density of 965 people per square mile.
The average household income in Hilton Head Island is $125,731 with a poverty rate of 9.66%. The median rental costs in recent years comes to $1,271 per month, and the median house value is $483,600. The median age in Hilton Head Island is 58 years, 57.5 years for males, and 58.4 years for females.