51106 ZIP Code
Sioux City, Iowa
December 13, 2025
| ZIP Code: | 51106 |
| City/Town: | Sioux City |
| County: | Woodbury |
| State: | Iowa |
| ZIP Type: | Standard |
| Population: | 27,652 |
| Median Household Income: | $74,750 |
| Per Capita Income: | $37,758 |
| Total Housing Units: | 11,536 |
| Median Home Value: | $175,200 |
| Land Area: | 33.5 sq miles
86.7 sq km |
| Water Area: | 0.4 sq miles
1.1 sq km |
| Coordinates: | 42.4632, -96.3129 |
Population Information (51106 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total Population: | 27,652 | -- | -- |
| Male: | 13,644 | 49.3% | 49.6% |
| Female: | 14,008 | 50.7% | 50.4% |
| Median Age: | 37.5 yrs | -- | 38.5 yrs |
| Under 5 years: | 1,727 | 6.2% | 5.7% |
| 5 to 9 years: | 1,925 | 7.0% | 6.0% |
| 10 to 14 years: | 1,440 | 5.2% | 6.5% |
| 15 to 19 years: | 2,304 | 8.3% | 6.6% |
| 20 to 24 years: | 2,370 | 8.6% | 6.7% |
| 25 to 34 years: | 3,181 | 11.5% | 13.7% |
| 35 to 44 years: | 3,098 | 11.2% | 12.9% |
| 45 to 54 years: | 3,444 | 12.5% | 12.4% |
| 55 to 59 years: | 1,865 | 6.7% | 6.5% |
| 60 to 64 years: | 1,516 | 5.5% | 6.4% |
| 65 to 74 years: | 2,575 | 9.3% | 9.7% |
| 75 to 84 years: | 1,666 | 6.0% | 4.8% |
| 85 years and over: | 541 | 2.0% | 2.0% |
Housing Information (51106 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Median home value: | $175,200 | -- | $281,900 |
| Median rooms: | 6.1 | -- | 5.5 |
| Median rent: | $967 / mo. | -- | $1,268 / mo. |
| Total housing units: | 11,536 | -- | -- |
| Occupied housing units: | 10,990 | 95.3% | 38.0% |
| Vacant housing units: | 546 | 4.7% | 4.6% |
| Housing tenure: | -- | -- | -- |
| Owner-occupied: | 7,977 | 72.6% | 64.8% |
| Renter-occupied: | 3,013 | 27.4% | 35.2% |
Educational Attainment (51106 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Population 25 years and over: | 17,886 | -- | -- |
| Less than 9th grade: | 438 | 2.4% | 4.7% |
| 9th to 12th grade, no diploma: | 719 | 4.0% | 6.1% |
| High school graduate: | 5,831 | 32.6% | 26.4% |
| Some college, no degree: | 3,261 | 18.2% | 19.7% |
| Associate degree: | 2,344 | 13.1% | 8.7% |
| Bachelor's degree: | 2,978 | 16.6% | 20.9% |
| Graduate or professional degree: | 2,315 | 12.9% | 13.7% |
| Percent high school graduate or higher: | -- | 93.5% | 89.1% |
| Percent bachelor's degree or higher: | -- | 29.6% | 34.3% |
Income Information (51106 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median household income: | $74,750 / yr. | $75,149 / yr. |
| Mean household income: | $93,234 / yr. | $105,833 / yr. |
| Median family income: | $102,525 / yr. | $92,646 / yr. |
| Per capita income: | $37,758 / yr. | $41,261 / yr. |
Employment (51106 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| In labor force: | 14,913 | -- | 63.5% |
| Employed: | 14,193 | 95.2% | 96.4% |
| Unemployed: | 717 | 4.8% | 5.3% |
| Not in labor force: | 7,366 | -- | -- |
| Class of Worker: | -- | -- | -- |
| Private wage and salary: | 11,859 | 83.6% | 79.7% |
| Government workers: | 1,856 | 13.1% | 14.2% |
| Self-employed: | 472 | 3.3% | 5.9% |
| Unpaid family workers: | 6 | 0.0% | 0.1% |
Race & Ethnicity (51106 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Race (one race): | -- | -- | -- |
| White: | 23,517 | 85.0% | 61.6% |
| Black or African American: | 1,374 | 5.0% | 12.4% |
| American Indian/Alaska Native: | 147 | 0.5% | 1.1% |
| Asian: | 310 | 1.1% | 6.0% |
| Native Hawaiian/Pacific Islander: | 137 | 0.5% | 0.2% |
| Some other race: | 589 | 2.1% | 8.4% |
| Two or more races: | 1,578 | 5.7% | 10.2% |
| Hispanic or Latino (any race): | 1,344 | 4.9% | 18.7% |
| Mexican: | 2,448 | 8.9% | 11.2% |
| Puerto Rican: | 1,928 | 7.0% | 1.8% |
| Cuban: | 208 | 0.8% | 0.7% |
| Other Hispanic or Latino: | 0 | 0.0% | 5.0% |
| Not Hispanic or Latino: | 312 | 1.1% | 81.1% |
Income Distribution (51106 zip code)
| Household Income | Households | Percent% | US AvgUS |
|---|---|---|---|
| Less than $10,000: | 462 | 4.2% | 4.9% |
| $10,000 to $14,999: | 429 | 3.9% | 3.8% |
| $15,000 to $24,999: | 955 | 8.7% | 7.0% |
| $25,000 to $34,999: | 922 | 8.4% | 7.4% |
| $35,000 to $49,999: | 1,048 | 9.5% | 10.7% |
| $50,000 to $74,999: | 1,688 | 15.4% | 16.1% |
| $75,000 to $99,999: | 1,236 | 11.2% | 12.8% |
| $100,000 to $149,999: | 2,542 | 23.1% | 17.1% |
| $150,000 to $199,999: | 927 | 8.4% | 8.8% |
| $200,000 or more: | 781 | 7.1% | 11.4% |
Commute to Work (51106 zip code)
| Commute Method | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Drove alone: | 12,162 | 85.7% | 67.8% |
| Carpooled: | 842 | 5.9% | 8.7% |
| Public transportation: | 51 | 0.4% | 4.2% |
| Walked: | 319 | 2.2% | 2.5% |
| Other means: | 27 | 0.2% | 0.9% |
| Worked from home: | 611 | 4.3% | 13.8% |
| Mean travel time to work: | 15.9 min | -- | 26.7 min |
Industry (51106 zip code)
| Industry Sector | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Agriculture, forestry, fishing, mining: | 46 | 0.3% | 1.6% |
| Construction: | 750 | 5.3% | 6.9% |
| Manufacturing: | 2,258 | 15.9% | 10.0% |
| Wholesale trade: | 352 | 2.5% | 2.4% |
| Retail trade: | 2,154 | 15.2% | 11.0% |
| Transportation, warehousing, utilities: | 609 | 4.3% | 5.8% |
| Information: | 166 | 1.2% | 1.9% |
| Finance, insurance, real estate: | 767 | 5.4% | 6.7% |
| Professional, scientific, management: | 745 | 5.2% | 12.1% |
| Education, health care, social services: | 3,609 | 25.4% | 23.3% |
| Arts, entertainment, food services: | 1,157 | 8.2% | 9.0% |
| Other services: | 753 | 5.3% | 4.7% |
| Public administration: | 827 | 5.8% | 4.7% |
Poverty Status (51106 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Poverty Rate: | -- | 13.4% | 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 (51106 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| With health insurance: | 26,440 | 95.6% | 91.3% |
| Private health insurance: | 19,714 | 71.3% | 67.6% |
| Public health coverage: | 10,109 | 36.6% | 35.9% |
| Without health insurance: | 1,012 | 3.7% | 8.7% |
Benefits & Assistance (51106 zip code)
| Households with: | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Earnings: | 8,201 | 74.6% | 77.4% |
| Social Security income: | 3,766 | 34.3% | 31.0% |
| Retirement income: | 2,192 | 19.9% | 21.8% |
| Supplemental Security Income (SSI): | 270 | 2.5% | 4.5% |
| Cash public assistance income: | 290 | 2.6% | 1.8% |
| SNAP (food stamps) benefits: | 909 | 8.3% | 11.4% |
Housing Types (51106 zip code)
| Structure Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| 1-unit, detached: | 8,720 | 75.6% | 61.4% |
| 1-unit, attached: | 422 | 3.7% | 6.1% |
| 2 units: | 272 | 2.4% | 3.4% |
| 3 or 4 units: | 226 | 2.0% | 4.3% |
| 5 to 9 units: | 372 | 3.2% | 4.6% |
| 10 to 19 units: | 406 | 3.5% | 4.3% |
| 20 or more units: | 732 | 6.3% | 9.9% |
| Mobile home: | 386 | 3.3% | 5.8% |
| Boat, RV, van, etc.: | 0 | 0.0% | 0.1% |
Year Structure Built (51106 zip code)
| Year Built | Units | Percent% | US AvgUS |
|---|---|---|---|
| Built 2020 or later: | 59 | 0.5% | 0.6% |
| Built 2010 to 2019: | 686 | 5.9% | 8.2% |
| Built 2000 to 2009: | 544 | 4.7% | 13.5% |
| Built 1990 to 1999: | 846 | 7.3% | 13.2% |
| Built 1980 to 1989: | 711 | 6.2% | 13.2% |
| Built 1970 to 1979: | 1,852 | 16.1% | 14.6% |
| Built 1960 to 1969: | 1,412 | 12.2% | 10.2% |
| Built 1950 to 1959: | 1,836 | 15.9% | 9.9% |
| Built 1940 to 1949: | 1,111 | 9.6% | 4.6% |
| Built 1939 or earlier: | 2,479 | 21.5% | 12.0% |
Bedrooms (51106 zip code)
| Number of Bedrooms | Units | Percent% | US AvgUS |
|---|---|---|---|
| No bedroom (studio): | 92 | 0.8% | 2.4% |
| 1 bedroom: | 790 | 6.8% | 3.0% |
| 2 bedrooms: | 3,496 | 30.3% | 9.1% |
| 3 bedrooms: | 4,728 | 41.0% | 15.9% |
| 4 bedrooms: | 1,632 | 14.1% | 18.8% |
| 5 or more bedrooms: | 798 | 6.9% | 17.6% |
Heating Fuel (51106 zip code)
| Fuel Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| Utility gas: | 7,422 | 67.5% | 47.1% |
| Bottled, tank, or LP gas: | 307 | 2.8% | 4.9% |
| Electricity: | 3,201 | 29.1% | 40.2% |
| Fuel oil, kerosene, etc.: | 33 | 0.3% | 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: | 15 | 0.1% | 0.5% |
| No fuel used: | 12 | 0.1% | 0.2% |
Vehicles Available (51106 zip code)
| Vehicles | Households | Percent% | US AvgUS |
|---|---|---|---|
| No vehicle available: | 452 | 4.1% | 8.3% |
| 1 vehicle available: | 3,682 | 33.5% | 32.6% |
| 2 vehicles available: | 4,248 | 38.7% | 37.0% |
| 3 or more vehicles available: | 2,608 | 23.7% | 22.1% |
Home Value Distribution (51106 zip code)
| Value Range | Owner Units | Percent% | US AvgUS |
|---|---|---|---|
| Less than $50,000: | 196 | 2.5% | 5.7% |
| $50,000 to $99,999: | 755 | 9.5% | 7.8% |
| $100,000 to $149,999: | 1,847 | 23.2% | 9.2% |
| $150,000 to $199,999: | 2,246 | 28.2% | 10.8% |
| $200,000 to $299,999: | 1,918 | 24.0% | 19.9% |
| $300,000 to $499,999: | 617 | 7.7% | 24.1% |
| $500,000 to $999,999: | 398 | 5.0% | 17.0% |
| $1,000,000 or more: | 0 | 0.0% | 5.6% |
Housing Costs (51106 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median owner costs (with mortgage): | $1,441 / mo. | $1,828 / mo. |
| Median owner costs (no mortgage): | $543 / mo. | $584 / mo. |
| Median gross rent: | $967 / mo. | $1,268 / mo. |
| Average household size (owner-occupied): | 2.47 | 2.53 |
| Average household size (renter-occupied): | 2.21 | 2.38 |
Households (51106 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total households: | 10,990 | -- | -- |
| Married-couple households: | 5,215 | 47.5% | 47.5% |
| Cohabiting couple households: | 2,100 | 19.1% | 7.0% |
| Male householder, no spouse: | 1,962 | 17.9% | 5.4% |
| Female householder, no spouse: | 3,041 | 27.7% | 12.7% |
| Householder living alone: | 3,167 | 28.8% | 28.6% |
| 65 years and over living alone: | 3,757 | 34.2% | 11.8% |
| Average household size: | 2.39 | -- | 2.53 |
| Average family size: | 2.99 | -- | -- |
Marital Status (51106 zip code)
| Population 15 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 10,984 | -- | -- |
| Never married: | 4,332 | 39.4% | 37.0% |
| Now married: | 5,457 | 49.7% | 49.5% |
| Separated: | 241 | 2.2% | 1.5% |
| Widowed: | 787 | 7.2% | 2.6% |
| Divorced: | 3,671 | 33.4% | 9.3% |
School Enrollment (51106 zip code)
| Population 3 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Enrolled in school: | 7,659 | -- | -- |
| Nursery school, preschool: | 354 | 4.6% | 5.8% |
| Kindergarten: | 447 | 5.8% | 5.0% |
| Elementary school (grades 1-8): | 2,510 | 32.8% | 40.5% |
| High school (grades 9-12): | 1,303 | 17.0% | 21.4% |
| College or graduate school: | 3,045 | 39.8% | 27.3% |
Veterans & Disability (51106 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Civilian population 18 years and over: | 21,596 | -- | -- |
| Veterans: | 1,647 | 7.6% | 6.3% |
| Civilian noninstitutionalized population: | 27,452 | -- | -- |
| With a disability: | 3,499 | 12.7% | 13.4% |
| Under 18 with disability: | 353 | 10.1% | 5.8% |
| 18 to 64 with disability: | 1,446 | 41.3% | 10.4% |
| 65 and over with disability: | 1,700 | 48.6% | 33.4% |
Mobility (Residence 1 Year Ago) (51106 zip code)
| Population 1 year and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Same house: | 25,015 | 90.5% | 86.9% |
| Different house: | 2,441 | 8.8% | 13.1% |
| Same county: | 1,164 | 47.7% | 7.0% |
| Different county: | 1,227 | 50.3% | 3.2% |
| Different state: | 931 | 38.1% | 2.5% |
| Abroad: | 50 | 2.0% | 0.4% |
Place of Birth (51106 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Native born: | 26,184 | 94.7% | 86.2% |
| Foreign born: | 177 | 0.6% | 13.9% |
| Naturalized citizen: | 1,468 | 829.4% | 52.7% |
| Not a citizen: | 1,468 | 829.4% | 47.3% |
| Foreign-born by region: | -- | -- | -- |
| Europe: | 1,468 | 829.4% | 10.5% |
| Asia: | 122 | 68.9% | 31.3% |
| Africa: | 308 | 174.0% | 5.5% |
| Oceania: | 120 | 67.8% | 0.5% |
| Latin America: | 670 | 378.5% | 50.0% |
| Northern America: | 38 | 21.5% | 2.2% |
Language Spoken at Home (51106 zip code)
| Population 5 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 25,925 | -- | -- |
| English only: | 23,086 | 89.0% | 78.3% |
| Language other than English: | 2,839 | 11.0% | 21.5% |
| By language: | -- | -- | -- |
| Spanish: | 1,883 | 7.3% | 13.3% |
| Other Indo-European languages: | 463 | 1.8% | 3.5% |
| Asian/Pacific Island languages: | 384 | 1.5% | 3.5% |
| Other languages: | 109 | 0.4% | 1.0% |
Computers & Internet (51106 zip code)
| Households | Percent% | US AvgUS | |
|---|---|---|---|
| Households with a computer: | 10,990 | 100.0% | 93.1% |
| Households with broadband internet: | 10,118 | 92.1% | 89.4% |
Sioux City, IA51106