South Sioux City, Nebraska

South Sioux City population, 2020 to 2024

South Sioux City lost 119 residents from July 2020 to July 2024, a change of -0.8%. In the latest year it moved by +2. Among 32 Nebraska places of 5,000 or more, that growth ranks 25th; the median place changed by +0.4%. The median place of 5,000+ in Nebraska has 10,206 people, so South Sioux City is 1.4 times that size.

South Sioux City covers 6.72 square miles of land and 0.34 of water, for 2,070 people per square mile of land. The median Nebraska place of 5,000+ has 1,829, so South Sioux City is denser than the typical town.

What county South Sioux City is in

All of South Sioux City's residents live in Dakota County, which had 21,335 residents in 2024. South Sioux City holds 65.2% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in South Sioux City

1 ZIP Code Tabulation Area (ZCTA) overlaps South Sioux City by at least 10% of the ZCTA's or the city's land: 68776. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where South Sioux City is

The Census internal point of South Sioux City is at 42.462100, -96.413000. Lincoln, the capital, is 115.2 miles S in a straight line. The nearest larger place is Sioux City, IA (86,875 people), 2.6 miles away. The nearest city of 100,000 or more is Sioux Falls, SD, 76.2 miles away.

Daylight in South Sioux City

At 42.46° N, South Sioux City gets about 15 h 18 min of daylight around the June solstice and 9 h 04 min around the December solstice, a swing of 6 h 14 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near South Sioux City

The eight nearest incorporated places of 1,000+ in Nebraska, measured between internal points. The closest is Dakota City, 3.1 miles away, with 2,047 people.