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ZIP 51106 · Sioux City

Who lives in ZIP code 51106 (Sioux City, IA): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Sioux City, IA · Woodbury County

uszips 2026
People28,592
Median age36.4
Household income$78,434
Home value$198,104
Median rent$1,117/mo
Poverty13.6%
College degree+28.6%
Commute15 min

Place

Metro area
Sioux City, IA-NE-SD
Wider region
Sioux City-Le Mars, IA-NE-SD
Time zone
Central
Density
330 / sq mi
Housing units
11,249

County

Woodbury100%

Share of the ZIP's people in each county.

Age mix

Under 1014.1%
10–1914.4%
20s14.2%
30s11.3%
40s12.8%
50s11.6%
60s10.1%
70s7.1%
80+4.3%

16.5% are 65 or older; 75.7% are adults.

Household income

Under $25K17.3%
$25K–50K15.2%
$50K–75K14.4%
$75K–100K14.2%
$100K–150K21.2%
$150K+17.5%

38.7% of households earn $100K+. Median per person: $40,696.

Education (adults 25+)

Less than high school8.0%
High school31.5%
Some college31.9%
Bachelor's15.7%
Graduate12.9%

35.4% of degrees are in STEM fields.

Race

White78.2%
Black6.3%
Asian1.6%
Native American1.8%
Pacific Islander0.5%
Other2.7%
Two or more8.9%

10.2% Hispanic or Latino (of any race).

Households & family

Married
47.3%
Never married
36.6%
Divorced
10.5%
Widowed
5.6%
Family size
3.09
Dual-income families
51.0%

Housing

Own their home
70.2%
Rent burden
28.8%
Men / women
50% / 50%

Work

In labor force
64.8%
Unemployment
4.1%
Self-employed
9.7%
Farmers
0.6%

Community

Charitable givers
23.6%
Veterans
5.6%
With a disability
13.5%
No health insurance
5.1%
Limited English
3.6%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

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