St. Augustine is a city located in Florida. With a 2020 population of 17,217, it is the 131st largest city in Florida and the 2108th largest city in the United States . St. Augustine is currently growing at a rate of 5.52% annually and its population has increased by 32.69% since the most recent census, which recorded a population of 12,975 in 2010. St. Augustine reached it's highest population of 17,217 in 2021. Spanning over 13 miles, St. Augustine has a population density of 1,822 people per square mile.
The average household income in St. Augustine is $78,115 with a poverty rate of 20.58%. The median rental costs in recent years comes to $1,052 per month, and the median house value is $271,000. The median age in St. Augustine is 45 years, 40.9 years for males, and 46.1 years for females.