Stock Island is a city located in Florida. Stock Island has a 2020 population of 4,404. Stock Island is currently declining at a rate of 0.00% annually and its population has increased by 12.38% since the most recent census, which recorded a population of 3,919 in 2010. Stock Island reached it's highest population of 4,404 in 2018.
The average household income in Stock Island is $65,240 with a poverty rate of 15.26%. The median rental costs in recent years comes to $1,363 per month, and the median house value is $295,000. The median age in Stock Island is 40.3 years, 40.2 years for males, and 40.5 years for females. For every 100 females there are 123.3 males.