Sebastian is a city located in Florida. With a 2020 population of 26,757, it is the 94th largest city in Florida and the 1434th largest city in the United States. Sebastian is currently growing at a rate of 1.98% annually and its population has increased by 22.02% since the most recent census, which recorded a population of 21,929 in 2010. Spanning over 15 miles, Sebastian has a population density of 1,911 people per square mile.
The average household income in Sebastian is $64,692 with a poverty rate of 12.69%. The median rental costs in recent years comes to $1,057 per month, and the median house value is $175,900. The median age in Sebastian is 54.5 years, 54.3 years for males, and 55 years for females. For every 100 females there are 94.6 males.