ZIP 51105 · Sioux City
Who lives in ZIP code 51105 (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
People10,415
Median age29.6
Household income$51,786
Home value$96,007
Median rent$859/mo
Poverty21.6%
College degree+7.8%
Commute17 min
Place
- Metro area
- Sioux City, IA-NE-SD
- Wider region
- Sioux City-Le Mars, IA-NE-SD
- Time zone
- Central
- Density
- 676 / sq mi
- Housing units
- 3,596
County
Share of the ZIP's people in each county.
Age mix
6.3% are 65 or older; 65.8% are adults.
Household income
20.3% of households earn $100K+. Median per person: $31,899.
Education (adults 25+)
44.7% of degrees are in STEM fields.
Race
37.0% Hispanic or Latino (of any race).
Households & family
- Married
- 38.3%
- Never married
- 44.9%
- Divorced
- 14.1%
- Widowed
- 2.8%
- Family size
- 3.59
- Dual-income families
- 42.6%
Housing
- Own their home
- 48.2%
- Rent burden
- 24.2%
- Men / women
- 54% / 46%
Work
- In labor force
- 72.5%
- Unemployment
- 6.2%
- Self-employed
- 6.2%
- Farmers
- 0.0%
Community
- Charitable givers
- 4.1%
- Veterans
- 4.0%
- With a disability
- 13.8%
- No health insurance
- 12.1%
- Limited English
- 17.4%
Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.