Jacksonville is a city located in Calhoun County Alabama. With a 2020 population of 12,376, it is the 56th largest city in Alabama and the 2660th largest city in the United States . Jacksonville is currently declining at a rate of -0.67% annually and its population has decreased by -1.37% since the most recent census, which recorded a population of 12,548 in 2010. Jacksonville reached it's highest population of 13,185 in 2010. Spanning over 11 miles, Jacksonville has a population density of 1,134 people per square mile.
The average household income in Jacksonville is $57,286 with a poverty rate of 27.44%. The median rental costs in recent years comes to $644 per month, and the median house value is $147,900. The median age in Jacksonville is 28.1 years, 28.1 years for males, and 28.2 years for females.