South Sioux City is a city located in Dakota County Nebraska. With a 2020 population of 12,849, it is the 14th largest city in Nebraska and the 2583rd largest city in the United States . South Sioux City is currently growing at a rate of 0.16% annually but its population has decreased by -3.77% since the most recent census, which recorded a population of 13,353 in 2010. South Sioux City reached it's highest population of 13,389 in 2010. Spanning over 7 miles, South Sioux City has a population density of 2,004 people per square mile.
The average household income in South Sioux City is $64,930 with a poverty rate of 17.26%. The median rental costs in recent years comes to $815 per month, and the median house value is $116,200. The median age in South Sioux City is 31.9 years, 31.6 years for males, and 32.9 years for females.