ZIP 57440 · Frankfort
Who lives in ZIP code 57440 (Frankfort, SD): age, income, housing, education and work.
Source: uszips 2026 (ACS-based ZIP file)
2026 ZIP profile
Frankfort, SD · Spink County
uszips 2026
People466
Median age54.5
Household income$54,625
Home value$131,867
Median rent—
Poverty18.5%
College degree+26.5%
Commute24 min
Place
- Metro area
- Outside any metro
- Time zone
- Central
- Density
- 1 / sq mi
- Housing units
- 122
County
Share of the ZIP's people in each county.
Age mix
24.7% are 65 or older; 92.9% are adults.
Household income
32.0% of households earn $100K+. Median per person: $25,000.
Education (adults 25+)
36.1% of degrees are in STEM fields.
Race
0.4% Hispanic or Latino (of any race).
Households & family
- Married
- 44.7%
- Never married
- 35.7%
- Divorced
- 12.8%
- Widowed
- 6.7%
- Family size
- 3.31
- Dual-income families
- 68.5%
Housing
- Own their home
- 97.5%
- Rent burden
- —
- Men / women
- 53% / 47%
Work
- In labor force
- 54.7%
- Unemployment
- 7.9%
- Self-employed
- 25.0%
- Farmers
- 31.2%
Community
- Charitable givers
- 0.0%
- Veterans
- 15.5%
- With a disability
- 12.0%
- No health insurance
- 9.9%
- Limited English
- 1.6%
Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.