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ZIP 57038 · Jefferson

Who lives in ZIP code 57038 (Jefferson, SD): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Jefferson, SD · Union County

uszips 2026
People1,796
Median age43.2
Household income$106,250
Home value$306,491
Median rent$913/mo
Poverty3.2%
College degree+40.1%
Commute21 min

Place

Metro area
Sioux City, IA-NE-SD
Wider region
Sioux City-Le Mars, IA-NE-SD
Time zone
Central
Density
14 / sq mi
Housing units
736

County

Union100%

Share of the ZIP's people in each county.

Age mix

Under 1013.2%
10–1915.9%
20s3.8%
30s10.7%
40s24.1%
50s12.0%
60s14.2%
70s4.6%
80+1.4%

11.9% are 65 or older; 72.0% are adults.

Household income

Under $25K6.8%
$25K–50K13.5%
$50K–75K18.9%
$75K–100K9.6%
$100K–150K11.3%
$150K+39.9%

51.2% of households earn $100K+. Median per person: $58,681.

Education (adults 25+)

Less than high school6.2%
High school25.1%
Some college28.6%
Bachelor's22.9%
Graduate17.2%

58.5% of degrees are in STEM fields.

Race

White94.4%
Black0.0%
Asian0.0%
Native American1.9%
Pacific Islander0.0%
Other1.1%
Two or more2.7%

4.1% Hispanic or Latino (of any race).

Households & family

Married
67.3%
Never married
15.3%
Divorced
15.5%
Widowed
1.9%
Family size
2.66
Dual-income families
63.1%

Housing

Own their home
91.7%
Rent burden
26.5%
Men / women
49% / 51%

Work

In labor force
76.9%
Unemployment
5.3%
Self-employed
13.4%
Farmers
7.3%

Community

Charitable givers
28.0%
Veterans
4.7%
With a disability
15.1%
No health insurance
3.3%
Limited English
0.0%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

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