James Island is a city located in South Carolina. With a 2020 population of 12,153, it is the 38th largest city in South Carolina and the 2693rd largest city in the United States. James Island is currently growing at a rate of 0.18% annually and its population has increased by since the most recent census, which recorded a population of in 2010. James Island reached it's highest population of 12,153 in 2021. Spanning over 5 miles, James Island has a population density of 2,563 people per square mile.
The average household income in James Island is $98,432 with a poverty rate of 5.42%. The median rental costs in recent years comes to $1,374 per month, and the median house value is $300,600. The median age in James Island is 44.1 years, 43.3 years for males, and 44.9 years for females. For every 100 females there are 99.5 males.