ZIP 57031 · Gayville
Who lives in ZIP code 57031 (Gayville, SD): age, income, housing, education and work.
Source: uszips 2026 (ACS-based ZIP file)
2026 ZIP profile
Gayville, SD · Yankton County
uszips 2026
People784
Median age42.6
Household income$64,794
Home value$140,478
Median rent$602/mo
Poverty5.4%
College degree+13.9%
Commute19 min
Place
- Metro area
- Yankton, SD (micro)
- Time zone
- Central
- Density
- 8 / sq mi
- Housing units
- 394
Spans 2 counties
Share of the ZIP's people in each county.
Age mix
14.9% are 65 or older; 78.4% are adults.
Household income
22.1% of households earn $100K+. Median per person: $48,514.
Education (adults 25+)
41.0% of degrees are in STEM fields.
Race
7.1% Hispanic or Latino (of any race).
Households & family
- Married
- 44.8%
- Never married
- 31.9%
- Divorced
- 16.0%
- Widowed
- 7.3%
- Family size
- 2.91
- Dual-income families
- 76.0%
Housing
- Own their home
- 88.1%
- Rent burden
- 19.8%
- Men / women
- 58% / 42%
Work
- In labor force
- 82.5%
- Unemployment
- 0.0%
- Self-employed
- 17.6%
- Farmers
- 8.8%
Community
- Charitable givers
- 5.9%
- Veterans
- 4.6%
- With a disability
- 8.8%
- No health insurance
- 3.4%
- Limited English
- 0.0%
Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.