ZIP 50138 · Knoxville
Who lives in ZIP code 50138 (Knoxville, IA): age, income, housing, education and work.
Source: uszips 2026 (ACS-based ZIP file)
2026 ZIP profile
Knoxville, IA · Marion County
uszips 2026
People11,117
Median age42.9
Household income$74,693
Home value$195,459
Median rent$815/mo
Poverty10.5%
College degree+28.0%
Commute24 min
Place
- Metro area
- Pella, IA (micro)
- Wider region
- Des Moines-West Des Moines-Ames, IA
- Time zone
- Central
- Density
- 26 / sq mi
- Housing units
- 4,663
County
Share of the ZIP's people in each county.
Age mix
22.1% are 65 or older; 80.3% are adults.
Household income
37.4% of households earn $100K+. Median per person: $41,010.
Education (adults 25+)
46.5% of degrees are in STEM fields.
Race
1.8% Hispanic or Latino (of any race).
Households & family
- Married
- 58.0%
- Never married
- 22.1%
- Divorced
- 14.5%
- Widowed
- 5.3%
- Family size
- 2.82
- Dual-income families
- 58.2%
Housing
- Own their home
- 80.9%
- Rent burden
- 22.6%
- Men / women
- 47% / 53%
Work
- In labor force
- 63.7%
- Unemployment
- 3.7%
- Self-employed
- 9.3%
- Farmers
- 4.9%
Community
- Charitable givers
- 18.7%
- Veterans
- 5.9%
- With a disability
- 17.1%
- No health insurance
- 2.7%
- Limited English
- 0.0%
Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.