City · Nebraska
South Sioux City, Nebraska
South Sioux City, city, in Dakota County, Nebraska. South Sioux City had 14,158 residents on July 1, 2025 by the Census Bureau's estimate, up 0.8% since 2020; the 2020 Census counted 14,043 and the ACS 2020-2024 5-year estimates put it at 13,907 (±22). GEOID 3146030.
Residents, July 2025 estimate
14,158
Census Bureau estimate (no margin published)
2020 Census count: 14,043 · ACS 2020-2024: 13,907 ±22
Median household income
$68,223
±$7,028 (90% margin)
Nebraska: $76,475
Median home value
$174,700
±$13,085 (90% margin)
Nebraska: $238,600
Median gross rent
$1,127
±$84 (90% margin)
Nebraska: $1,072
Where is South Sioux City and what county is it in?
South Sioux City is a city in Dakota County, Nebraska. It covers 6.7 square miles of land, 2,089 residents per square mile in 2020.
South Sioux City is in the Sioux City, IA-NE-SD metropolitan statistical area, which takes in 3 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in South Sioux City, and is it growing?
The Census Bureau estimates that 14,158 people lived in South Sioux City on July 1, 2025, up 0.8% since 2020, slower than Nebraska (+2.9%). The 2020 Census counted 14,043 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 13,907 (±22).
| Measure | South Sioux City | Dakota County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 13,907 ±22 | 21,354 | +1,011 |
| Households | 4,766 ±172 | 7,459 | no clear change |
| Average household size | 2.90 ±0.10 | 2.84 | +0.20 |
| Housing units | 4,961 ±170 | 7,808 | no clear change |
South Sioux City's population since 2000
From 11,925 in 2000 to 14,158 in 2025: up 18.7%. The 2000, 2010 and 2020 figures are census counts, each for South Sioux City as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in South Sioux City?
The median resident of South Sioux City is 30.5 years old; 32.5% are under 18 and 11.0% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 52.8%, then non-Hispanic white residents at 26.6%. 34.2% of residents were born outside the United States.
| Measure | South Sioux City | Dakota County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 30.5 ±1.1 | 32.5 | no clear change |
| Under 18 years | 32.5% ±1.2 pts | 29.5% | – |
| 65 years and over | 11.0% ±1.4 pts | 12.8% | – |
| Male | 49.4% ±1.3 pts | 49.6% | – |
| Hispanic or Latino (any race) | 52.8% ±2.0 pts | 41.6% | +4.7 pts |
| White alone, not Hispanic | 26.6% ±2.0 pts | 42.3% | −10.4 pts |
| Black or African American alone, not Hispanic | 13.3% ±0.8 pts | 8.7% | +5.7 pts |
| Asian alone, not Hispanic | 3.4% ±0.8 pts | 3.0% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 2.1% ±0.6 pts | 2.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.2 pts | 0.0% | – |
| Two or more races, not Hispanic | 1.8% ±1.0 pts | 2.3% | – |
| Some other race alone, not Hispanic | 0.1% ±0.2 pts | 0.1% | – |
| Born outside the United States | 34.2% ±3.6 pts | 25.6% | no clear change |
| Speak a language other than English at home (age 5+) | 52.9% ±4.9 pts | 40.6% | – |
| Civilian veterans (age 18+) | 2.8% ±1.0 pts | 4.2% | – |
| With a disability | 10.4% ±2.4 pts | 12.5% | – |
| No health insurance coverage | 8.8% ±2.8 pts | 8.1% | −6.4 pts |
| High school graduate or higher (age 25+) | 74.7% ±4.2 pts | 78.7% | – |
| Bachelor's degree or higher (age 25+) | 15.5% ±3.7 pts | 14.6% | +4.9 pts |
| Graduate or professional degree (age 25+) | 3.3% ±1.8 pts | 3.3% | – |
| Lived in the same house a year earlier | 87.2% ±3.4 pts | 87.6% | – |
| Moved from another state in the past year | 4.5% ±2.7 pts | 4.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in South Sioux City earn?
Half of South Sioux City's 4,766 households earn less than $68,223 a year (±$7,028), against $70,329 in Dakota County and $76,475 in Nebraska. In 2015-2019 it was $67,449 in 2024 dollars; the margins of error cannot tell the two periods apart. 12.2% of residents live below the poverty line.
| Measure | South Sioux City | Dakota County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $68,223 ±$7,028 | $70,329 | no clear change |
| Mean household income | $84,973 ±$10,475 | $91,843 | – |
| Per capita income | $28,929 ±$3,490 | $32,253 | no clear change |
| People below the poverty line | 12.2% ±3.8 pts | 11.5% | no clear change |
| Children under 18 below the poverty line | 14.2% ±5.8 pts | 15.2% | no clear change |
| Households receiving SNAP | 10.7% ±3.9 pts | 10.0% | – |
| Households with a computer | 97.0% ±1.4 pts | 96.0% | – |
| Households with a broadband subscription | 88.3% ±3.9 pts | 85.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in South Sioux City?
Owners occupy 55.9% of South Sioux City's occupied homes and renters 44.1%. The median owner-occupied home is valued at $174,700 by its owner (±$13,085). The median renter pays $1,127 a month including utilities, and 40.0% of renters pay 35% or more of their income on rent.
| Measure | South Sioux City | Dakota County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $174,700 ±$13,085 | $185,700 | +$31,693 |
| Median gross rent | $1,127 ±$84 | $1,069 | +$124 |
| Renters paying 35% or more of income on rent | 40.0% ±9.8 pts | 37.9% | +16.4 pts |
| Median monthly owner costs, with a mortgage | $1,668 ±$112 | $1,706 | – |
| Owner-occupied homes | 55.9% ±4.7 pts | 63.9% | no clear change |
| Renter-occupied homes | 44.1% ±4.7 pts | 36.1% | – |
| Housing units | 4,961 ±170 | 7,808 | no clear change |
| Homeowner vacancy rate | 0.0% ±0.9 pts | 0.2% | – |
| Rental vacancy rate | 1.1% ±2.0 pts | 2.1% | – |
| Single-family detached homes | 62.3% ±4.8 pts | 69.2% | – |
| Mobile homes | 3.8% ±1.8 pts | 6.3% | – |
| Built 2020 or later | 3.4% ±2.6 pts | 2.6% | – |
| Built 2010 to 2019 | 4.6% ±2.0 pts | 5.4% | – |
| Built 1939 or earlier | 15.3% ±4.5 pts | 16.2% | – |
| Households with no vehicle | 5.6% ±2.5 pts | 4.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is South Sioux City building?
Builders took permits for 41 new housing units in South Sioux City in 2025 (31 in single-family houses), 2.9 per 1,000 residents against 5.3 across Nebraska.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in South Sioux City work and get to work?
72.9% of South Sioux City's workers drive alone and 4.7% work from home. The average trip to work takes 12.2 minutes. The unemployment rate in 2020-2024 averaged 5.0%.
| Measure | South Sioux City | Dakota County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 73.4% ±3.3 pts | 71.5% | – |
| Unemployment rate | 5.0% ±2.1 pts | 4.8% | no clear change |
| Drove alone to work | 72.9% ±4.7 pts | 75.3% | – |
| Carpooled | 16.1% ±4.0 pts | 15.0% | – |
| Public transportation | 0.8% ±0.8 pts | 0.5% | – |
| Walked | 0.9% ±0.9 pts | 1.0% | – |
| Worked from home | 4.7% ±1.9 pts | 4.9% | no clear change |
| Mean travel time to work | 12.2 min ±0.9 | 13.9 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in South Sioux City?
3 census tracts lie mostly in South Sioux City, and 1 more reaches into it (2020 census blocks). Their median household incomes run from $51,603 (Tract 101.01) to $90,693 (Tract 102).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 102Dakota County | 6,893 | $90,693 |
| Tract 101.01Dakota County | 3,734 | $51,603 |
| Tract 101.02Dakota County | 3,217 | $57,292 |
| Tract 103Dakota County | 4,364 | $83,523 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in South Sioux City) · Census block assignment files
How does South Sioux City compare with other places in Nebraska?
By the Census Bureau's July 2025 estimates, South Sioux City is the 2,504th-most populous of the 19,476 U.S. incorporated places that have one and the 14th-most populous of 528 in Nebraska.
South Sioux City ranks 76th of 136 places in Nebraska with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 14th | 528 |
| Growth 2020-2025 (PEP) | 50th | 132 |
| Residents per square mile | 24th | 136 |
| Median household income | 76th | 136 |
| Per capita income | 120th | 136 |
| Median home value | 66th | 135 |
| Median gross rent | 19th | 129 |
| Poverty rate | 43rd | 109 |
| Bachelor's degree or higher | 124th | 135 |
| Median age | 129th | 136 |
| Owner-occupied share | 127th | 135 |
| Work from home | 67th | 84 |
| Travel time to work | 126th | 135 |
South Sioux City's figures with every place in Nebraska (CSV)
Every place in Nebraska, sortable · Compare South Sioux City with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for South Sioux City?
7 of the 57 figures for South Sioux City on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for South Sioux City are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in South Sioux City.