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ZIP 51040 · Onawa

Who lives in ZIP code 51040 (Onawa, IA): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Onawa, IA · Monona County

uszips 2026
People3,500
Median age37.6
Household income$71,179
Home value$143,817
Median rent$947/mo
Poverty14.2%
College degree+19.9%
Commute18 min

Place

Metro area
Outside any metro
Time zone
Central
Density
10 / sq mi
Housing units
1,555

County

Monona100%

Share of the ZIP's people in each county.

Age mix

Under 1013.8%
10–1912.9%
20s12.5%
30s14.9%
40s8.1%
50s9.2%
60s12.1%
70s8.9%
80+7.5%

22.1% are 65 or older; 76.2% are adults.

Household income

Under $25K16.7%
$25K–50K21.0%
$50K–75K15.3%
$75K–100K18.5%
$100K–150K19.2%
$150K+9.4%

28.6% of households earn $100K+. Median per person: $37,529.

Education (adults 25+)

Less than high school7.9%
High school36.6%
Some college35.6%
Bachelor's14.3%
Graduate5.6%

52.4% of degrees are in STEM fields.

Race

White93.5%
Black0.4%
Asian0.0%
Native American0.2%
Pacific Islander0.0%
Other0.0%
Two or more5.9%

1.4% Hispanic or Latino (of any race).

Households & family

Married
51.2%
Never married
29.8%
Divorced
8.5%
Widowed
10.4%
Family size
2.71
Dual-income families
59.1%

Housing

Own their home
75.3%
Rent burden
30.9%
Men / women
48% / 52%

Work

In labor force
62.2%
Unemployment
1.2%
Self-employed
13.3%
Farmers
5.7%

Community

Charitable givers
13.9%
Veterans
8.8%
With a disability
16.1%
No health insurance
4.6%
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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