Jacksonville is a city located in Onslow County North Carolina. With a 2020 population of 71,758, it is the 14th largest city in North Carolina and the 512th largest city in the United States . Jacksonville is currently declining at a rate of -0.47% annually but its population has increased by 2.30% since the most recent census, which recorded a population of 70,145 in 2010. Jacksonville reached it's highest population of in . Spanning over 56 miles, Jacksonville has a population density of 1,475 people per square mile.
The average household income in Jacksonville is $57,085 with a poverty rate of 13.04%. The median rental costs in recent years comes to $992 per month, and the median house value is $154,900. The median age in Jacksonville is 23.1 years, 22.3 years for males, and 26.9 years for females.