51104 ZIP Code
Sioux City, Iowa
December 14, 2025
| ZIP Code: | 51104 |
| City/Town: | Sioux City |
| County: | Woodbury |
| State: | Iowa |
| ZIP Type: | Standard |
| Population: | 22,759 |
| Median Household Income: | $74,734 |
| Per Capita Income: | $41,313 |
| Total Housing Units: | 8,892 |
| Median Home Value: | $179,500 |
| Land Area: | 7.5 sq miles
19.4 sq km |
| Water Area: | 0.0 sq miles
0.0 sq km |
| Coordinates: | 42.5345, -96.4032 |
Population Information (51104 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total Population: | 22,759 | -- | -- |
| Male: | 11,643 | 51.2% | 49.6% |
| Female: | 11,116 | 48.8% | 50.4% |
| Median Age: | 34.8 yrs | -- | 38.5 yrs |
| Under 5 years: | 1,571 | 6.9% | 5.7% |
| 5 to 9 years: | 1,328 | 5.8% | 6.0% |
| 10 to 14 years: | 1,791 | 7.9% | 6.5% |
| 15 to 19 years: | 1,655 | 7.3% | 6.6% |
| 20 to 24 years: | 1,927 | 8.5% | 6.7% |
| 25 to 34 years: | 3,194 | 14.0% | 13.7% |
| 35 to 44 years: | 3,158 | 13.9% | 12.9% |
| 45 to 54 years: | 2,189 | 9.6% | 12.4% |
| 55 to 59 years: | 1,269 | 5.6% | 6.5% |
| 60 to 64 years: | 1,312 | 5.8% | 6.4% |
| 65 to 74 years: | 2,019 | 8.9% | 9.7% |
| 75 to 84 years: | 985 | 4.3% | 4.8% |
| 85 years and over: | 361 | 1.6% | 2.0% |
Housing Information (51104 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Median home value: | $179,500 | -- | $281,900 |
| Median rooms: | 5.9 | -- | 5.5 |
| Median rent: | $949 / mo. | -- | $1,268 / mo. |
| Total housing units: | 8,892 | -- | -- |
| Occupied housing units: | 8,361 | 94.0% | 38.0% |
| Vacant housing units: | 531 | 6.0% | 4.6% |
| Housing tenure: | -- | -- | -- |
| Owner-occupied: | 5,484 | 65.6% | 64.8% |
| Renter-occupied: | 2,877 | 34.4% | 35.2% |
Educational Attainment (51104 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Population 25 years and over: | 14,487 | -- | -- |
| Less than 9th grade: | 845 | 5.8% | 4.7% |
| 9th to 12th grade, no diploma: | 727 | 5.0% | 6.1% |
| High school graduate: | 3,900 | 26.9% | 26.4% |
| Some college, no degree: | 2,992 | 20.7% | 19.7% |
| Associate degree: | 1,572 | 10.9% | 8.7% |
| Bachelor's degree: | 3,026 | 20.9% | 20.9% |
| Graduate or professional degree: | 1,425 | 9.8% | 13.7% |
| Percent high school graduate or higher: | -- | 89.1% | 89.1% |
| Percent bachelor's degree or higher: | -- | 30.7% | 34.3% |
Income Information (51104 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median household income: | $74,734 / yr. | $75,149 / yr. |
| Mean household income: | $89,711 / yr. | $105,833 / yr. |
| Median family income: | $89,189 / yr. | $92,646 / yr. |
| Per capita income: | $41,313 / yr. | $41,261 / yr. |
Employment (51104 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| In labor force: | 12,604 | -- | 63.5% |
| Employed: | 11,997 | 95.5% | 96.4% |
| Unemployed: | 568 | 4.5% | 5.3% |
| Not in labor force: | 5,176 | -- | -- |
| Class of Worker: | -- | -- | -- |
| Private wage and salary: | 10,200 | 85.0% | 79.7% |
| Government workers: | 1,434 | 12.0% | 14.2% |
| Self-employed: | 363 | 3.0% | 5.9% |
| Unpaid family workers: | 0 | 0.0% | 0.1% |
Race & Ethnicity (51104 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Race (one race): | -- | -- | -- |
| White: | 16,835 | 74.0% | 61.6% |
| Black or African American: | 1,134 | 5.0% | 12.4% |
| American Indian/Alaska Native: | 425 | 1.9% | 1.1% |
| Asian: | 889 | 3.9% | 6.0% |
| Native Hawaiian/Pacific Islander: | 93 | 0.4% | 0.2% |
| Some other race: | 605 | 2.7% | 8.4% |
| Two or more races: | 2,778 | 12.2% | 10.2% |
| Hispanic or Latino (any race): | 2,497 | 11.0% | 18.7% |
| Mexican: | 4,670 | 20.5% | 11.2% |
| Puerto Rican: | 3,783 | 16.6% | 1.8% |
| Cuban: | 45 | 0.2% | 0.7% |
| Other Hispanic or Latino: | 3 | 0.0% | 5.0% |
| Not Hispanic or Latino: | 839 | 3.7% | 81.1% |
Income Distribution (51104 zip code)
| Household Income | Households | Percent% | US AvgUS |
|---|---|---|---|
| Less than $10,000: | 487 | 5.8% | 4.9% |
| $10,000 to $14,999: | 84 | 1.0% | 3.8% |
| $15,000 to $24,999: | 528 | 6.3% | 7.0% |
| $25,000 to $34,999: | 676 | 8.1% | 7.4% |
| $35,000 to $49,999: | 1,112 | 13.3% | 10.7% |
| $50,000 to $74,999: | 1,302 | 15.6% | 16.1% |
| $75,000 to $99,999: | 1,233 | 14.7% | 12.8% |
| $100,000 to $149,999: | 1,496 | 17.9% | 17.1% |
| $150,000 to $199,999: | 1,018 | 12.2% | 8.8% |
| $200,000 or more: | 425 | 5.1% | 11.4% |
Commute to Work (51104 zip code)
| Commute Method | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Drove alone: | 9,907 | 82.6% | 67.8% |
| Carpooled: | 1,321 | 11.0% | 8.7% |
| Public transportation: | 84 | 0.7% | 4.2% |
| Walked: | 70 | 0.6% | 2.5% |
| Other means: | 71 | 0.6% | 0.9% |
| Worked from home: | 460 | 3.8% | 13.8% |
| Mean travel time to work: | 17.4 min | -- | 26.7 min |
Industry (51104 zip code)
| Industry Sector | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Agriculture, forestry, fishing, mining: | 213 | 1.8% | 1.6% |
| Construction: | 954 | 8.0% | 6.9% |
| Manufacturing: | 1,784 | 14.9% | 10.0% |
| Wholesale trade: | 282 | 2.4% | 2.4% |
| Retail trade: | 1,479 | 12.3% | 11.0% |
| Transportation, warehousing, utilities: | 694 | 5.8% | 5.8% |
| Information: | 154 | 1.3% | 1.9% |
| Finance, insurance, real estate: | 535 | 4.5% | 6.7% |
| Professional, scientific, management: | 689 | 5.7% | 12.1% |
| Education, health care, social services: | 2,966 | 24.7% | 23.3% |
| Arts, entertainment, food services: | 1,126 | 9.4% | 9.0% |
| Other services: | 697 | 5.8% | 4.7% |
| Public administration: | 424 | 3.5% | 4.7% |
Poverty Status (51104 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Poverty Rate: | -- | 9.3% | 8.8% |
| All people below poverty level: | -- | -- | -- |
| Under 18 years: | -- | -- | 16.3% |
| 18 to 64 years: | -- | -- | 11.0% |
| 65 years and over: | -- | -- | 10.3% |
Health Insurance (51104 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| With health insurance: | 21,023 | 92.4% | 91.3% |
| Private health insurance: | 15,123 | 66.4% | 67.6% |
| Public health coverage: | 8,399 | 36.9% | 35.9% |
| Without health insurance: | 1,482 | 6.5% | 8.7% |
Benefits & Assistance (51104 zip code)
| Households with: | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Earnings: | 6,778 | 81.1% | 77.4% |
| Social Security income: | 2,301 | 27.5% | 31.0% |
| Retirement income: | 1,736 | 20.8% | 21.8% |
| Supplemental Security Income (SSI): | 434 | 5.2% | 4.5% |
| Cash public assistance income: | 105 | 1.3% | 1.8% |
| SNAP (food stamps) benefits: | 825 | 9.9% | 11.4% |
Housing Types (51104 zip code)
| Structure Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| 1-unit, detached: | 6,409 | 72.1% | 61.4% |
| 1-unit, attached: | 298 | 3.4% | 6.1% |
| 2 units: | 171 | 1.9% | 3.4% |
| 3 or 4 units: | 205 | 2.3% | 4.3% |
| 5 to 9 units: | 296 | 3.3% | 4.6% |
| 10 to 19 units: | 359 | 4.0% | 4.3% |
| 20 or more units: | 1,067 | 12.0% | 9.9% |
| Mobile home: | 67 | 0.8% | 5.8% |
| Boat, RV, van, etc.: | 20 | 0.2% | 0.1% |
Year Structure Built (51104 zip code)
| Year Built | Units | Percent% | US AvgUS |
|---|---|---|---|
| Built 2020 or later: | 30 | 0.3% | 0.6% |
| Built 2010 to 2019: | 187 | 2.1% | 8.2% |
| Built 2000 to 2009: | 137 | 1.5% | 13.5% |
| Built 1990 to 1999: | 871 | 9.8% | 13.2% |
| Built 1980 to 1989: | 614 | 6.9% | 13.2% |
| Built 1970 to 1979: | 1,381 | 15.5% | 14.6% |
| Built 1960 to 1969: | 927 | 10.4% | 10.2% |
| Built 1950 to 1959: | 1,632 | 18.4% | 9.9% |
| Built 1940 to 1949: | 760 | 8.5% | 4.6% |
| Built 1939 or earlier: | 2,353 | 26.5% | 12.0% |
Bedrooms (51104 zip code)
| Number of Bedrooms | Units | Percent% | US AvgUS |
|---|---|---|---|
| No bedroom (studio): | 122 | 1.4% | 2.4% |
| 1 bedroom: | 1,256 | 14.1% | 3.0% |
| 2 bedrooms: | 2,502 | 28.1% | 9.1% |
| 3 bedrooms: | 3,239 | 36.4% | 15.9% |
| 4 bedrooms: | 1,548 | 17.4% | 18.8% |
| 5 or more bedrooms: | 225 | 2.5% | 17.6% |
Heating Fuel (51104 zip code)
| Fuel Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| Utility gas: | 5,302 | 63.4% | 47.1% |
| Bottled, tank, or LP gas: | 133 | 1.6% | 4.9% |
| Electricity: | 2,834 | 33.9% | 40.2% |
| Fuel oil, kerosene, etc.: | 0 | 0.0% | 4.2% |
| Coal or coke: | 0 | 0.0% | 0.1% |
| Wood: | 0 | 0.0% | 1.5% |
| Solar energy: | 0 | 0.0% | 0.1% |
| Other fuel: | 14 | 0.2% | 0.5% |
| No fuel used: | 78 | 0.9% | 0.2% |
Vehicles Available (51104 zip code)
| Vehicles | Households | Percent% | US AvgUS |
|---|---|---|---|
| No vehicle available: | 404 | 4.8% | 8.3% |
| 1 vehicle available: | 2,690 | 32.2% | 32.6% |
| 2 vehicles available: | 2,929 | 35.0% | 37.0% |
| 3 or more vehicles available: | 2,338 | 28.0% | 22.1% |
Home Value Distribution (51104 zip code)
| Value Range | Owner Units | Percent% | US AvgUS |
|---|---|---|---|
| Less than $50,000: | 128 | 2.3% | 5.7% |
| $50,000 to $99,999: | 441 | 8.0% | 7.8% |
| $100,000 to $149,999: | 1,416 | 25.8% | 9.2% |
| $150,000 to $199,999: | 1,347 | 24.6% | 10.8% |
| $200,000 to $299,999: | 1,534 | 28.0% | 19.9% |
| $300,000 to $499,999: | 536 | 9.8% | 24.1% |
| $500,000 to $999,999: | 65 | 1.2% | 17.0% |
| $1,000,000 or more: | 17 | 0.3% | 5.6% |
Housing Costs (51104 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median owner costs (with mortgage): | $1,415 / mo. | $1,828 / mo. |
| Median owner costs (no mortgage): | $571 / mo. | $584 / mo. |
| Median gross rent: | $949 / mo. | $1,268 / mo. |
| Average household size (owner-occupied): | 2.88 | 2.53 |
| Average household size (renter-occupied): | 2.19 | 2.38 |
Households (51104 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total households: | 8,361 | -- | -- |
| Married-couple households: | 3,918 | 46.9% | 47.5% |
| Cohabiting couple households: | 1,590 | 19.0% | 7.0% |
| Male householder, no spouse: | 1,453 | 17.4% | 5.4% |
| Female householder, no spouse: | 2,203 | 26.3% | 12.7% |
| Householder living alone: | 2,951 | 35.3% | 28.6% |
| 65 years and over living alone: | 2,175 | 26.0% | 11.8% |
| Average household size: | 2.64 | -- | 2.53 |
| Average family size: | 3.17 | -- | -- |
Marital Status (51104 zip code)
| Population 15 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 9,335 | -- | -- |
| Never married: | 3,944 | 42.2% | 37.0% |
| Now married: | 4,386 | 47.0% | 49.5% |
| Separated: | 100 | 1.1% | 1.5% |
| Widowed: | 796 | 8.5% | 2.6% |
| Divorced: | 2,839 | 30.4% | 9.3% |
School Enrollment (51104 zip code)
| Population 3 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Enrolled in school: | 5,550 | -- | -- |
| Nursery school, preschool: | 343 | 6.2% | 5.8% |
| Kindergarten: | 214 | 3.9% | 5.0% |
| Elementary school (grades 1-8): | 2,518 | 45.4% | 40.5% |
| High school (grades 9-12): | 1,299 | 23.4% | 21.4% |
| College or graduate school: | 1,176 | 21.2% | 27.3% |
Veterans & Disability (51104 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Civilian population 18 years and over: | 16,974 | -- | -- |
| Veterans: | 939 | 5.5% | 6.3% |
| Civilian noninstitutionalized population: | 22,505 | -- | -- |
| With a disability: | 2,134 | 9.5% | 13.4% |
| Under 18 with disability: | 126 | 5.9% | 5.8% |
| 18 to 64 with disability: | 1,219 | 57.1% | 10.4% |
| 65 and over with disability: | 789 | 37.0% | 33.4% |
Mobility (Residence 1 Year Ago) (51104 zip code)
| Population 1 year and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Same house: | 20,332 | 89.3% | 86.9% |
| Different house: | 2,173 | 9.5% | 13.1% |
| Same county: | 826 | 38.0% | 7.0% |
| Different county: | 1,169 | 53.8% | 3.2% |
| Different state: | 767 | 35.3% | 2.5% |
| Abroad: | 178 | 8.2% | 0.4% |
Place of Birth (51104 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Native born: | 20,255 | 89.0% | 86.2% |
| Foreign born: | 93 | 0.4% | 13.9% |
| Naturalized citizen: | 2,504 | 2692.5% | 52.7% |
| Not a citizen: | 2,504 | 2692.5% | 47.3% |
| Foreign-born by region: | -- | -- | -- |
| Europe: | 2,504 | 2692.5% | 10.5% |
| Asia: | 124 | 133.3% | 31.3% |
| Africa: | 458 | 492.5% | 5.5% |
| Oceania: | 0 | 0.0% | 0.5% |
| Latin America: | 1,345 | 1446.2% | 50.0% |
| Northern America: | 10 | 10.8% | 2.2% |
Language Spoken at Home (51104 zip code)
| Population 5 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 21,188 | -- | -- |
| English only: | 17,039 | 80.4% | 78.3% |
| Language other than English: | 4,149 | 19.6% | 21.5% |
| By language: | -- | -- | -- |
| Spanish: | 2,842 | 13.4% | 13.3% |
| Other Indo-European languages: | 299 | 1.4% | 3.5% |
| Asian/Pacific Island languages: | 714 | 3.4% | 3.5% |
| Other languages: | 294 | 1.4% | 1.0% |
Computers & Internet (51104 zip code)
| Households | Percent% | US AvgUS | |
|---|---|---|---|
| Households with a computer: | 8,361 | 100.0% | 93.1% |
| Households with broadband internet: | 7,892 | 94.4% | 89.4% |
Sioux City, IA51104