ZIP 57239 · Grenville
Who lives in ZIP code 57239 (Grenville, SD): age, income, housing, education and work.
Source: uszips 2026 (ACS-based ZIP file)
2026 ZIP profile
Grenville, SD · Day County
uszips 2026
People358
Median age63.2
Household income$106,389
Home value$411,600
Median rent—
Poverty5.3%
College degree+34.8%
Commute32 min
Place
- Metro area
- Outside any metro
- Time zone
- Central
- Density
- 3 / sq mi
- Housing units
- 186
County
Share of the ZIP's people in each county.
Age mix
46.4% are 65 or older; 94.7% are adults.
Household income
54.9% of households earn $100K+. Median per person: $45,543.
Education (adults 25+)
38.6% of degrees are in STEM fields.
Race
0.8% Hispanic or Latino (of any race).
Households & family
- Married
- 75.9%
- Never married
- 9.8%
- Divorced
- 7.5%
- Widowed
- 6.9%
- Family size
- 2.20
- Dual-income families
- 66.9%
Housing
- Own their home
- 88.7%
- Rent burden
- —
- Men / women
- 60% / 40%
Work
- In labor force
- 55.7%
- Unemployment
- 0.0%
- Self-employed
- 27.3%
- Farmers
- 0.0%
Community
- Charitable givers
- 0.0%
- Veterans
- 20.4%
- With a disability
- 29.1%
- No health insurance
- 4.2%
- Limited English
- 0.0%
Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.