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ZIP Code 51040
Onawa, IA, Monona County
Population
3,500
Land area
129.5sq mi
People per sq mi
27
City
Onawa
ZIP 51040 and nearby ZIP codes
ZIP 51040 at a glance
- ZIP 51040 (Onawa) is 53% less dense than Iowa as a whole.
- The median household income is $71,179, 5% below the Iowa median of $75,059.
- A typical owner-occupied home is valued at $151,600 (27% below Iowa) and median rent is $947 a month.
Local data for ZIP 51040
Counts from official public data
Housing and community stats
ZIP 51040, American Community Survey 2020-2024
Median household income
$71,179
Poverty rate
14.2%
Median home value
$151,600
Prices +11.3% in a year
Median rent
$947/mo
Homeownership
75.3%
Bachelor's or higher
19.9%
Median age
37.6
Average commute
18.3 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
115
ZIP Business Patterns 2023
Employees
1,156
$50.7M annual payroll
PPP loans
$9.4M
238 loans
Campaign donations
$4,574
18% D, 33% R, 2026 cycle
Environment and hazard risk
ZIP 51040, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: drought
Storm events since 1996
423
Countywide, mostly hail
Flood insurance policies
29
0.6% of homes, county
July high / Jan low
86° / 9°F
29.9 inches of rain a year
Health statistics
Share of adults in ZIP 51040, CDC PLACES estimates
Obesity
43.4%
U.S. 33.3% +10.1 pts
Diabetes
13.9%
U.S. 12.1% +1.8 pts
Smoking
17.7%
U.S. 12.8% +4.9 pts
Uninsured (18-64)
7.7%
U.S. 11.1% -3.4 pts
Frequently asked questions
- What city is ZIP code 51040?
- ZIP code 51040 is in Onawa, IA (Monona County).
- What county is ZIP code 51040 in?
- ZIP code 51040 is mostly in Monona County, Iowa.
- How many people live in ZIP code 51040?
- About 3,500 people live in the 51040 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.