South Sioux City, NE population, income and ZIP codes

South Sioux City city is a mid-size town in Nebraska, with 13,871 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #14 of 593 ranked by population — larger than 97% of them. The median age here is 30.9 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in South Sioux City city earn a median of $68,397 a year, 12.9% below the national figure of $78,538 and within a couple of points of the $67,419 median for the 119 Nebraska cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 10.9% of residents here, below the 12.4% national rate.

The typical owner-occupied home in South Sioux City city is valued at $160,900, 47% below the national figure and within a couple of points of the $161,800 peer median, while median gross rent runs $1,083 a month, 23% below the national figure, or roughly $12,996 across a full year. A household on the local median income would put about 19% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 2.4×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 55.8% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.