Skip to main content
ZipCityLookup
ZIP CodeStandard

51040

Onawa, IA

ZIP Code 51040 in Onawa, IA has a population of 3,537 and a median household income of $71,179. Explore Census demographics, housing, and a map.

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
3,537
People
Median age
37.6
Housing
Total households
1,555
Income
Median household income
$71,179
Housing
Total housing units
1,731
Employment
Employment rate
61.5%
Education
Bachelor’s degree or higher
19.9%
Healthcare
Insured population
95.4%
ZIP details
Local time 01:05:32(CT)
LocationOnawa, IA
CountyMonona
Area code
712
TimezoneCentral Time (CT)
Coordinates42.0325397, -96.068714
Land area129.5 sq miles(335,431,310 m²)

Map of ZIP Code 51040 — Onawa, IA

Map of ZIP Code 51040 — Onawa, IA

Nearby ZIP codes

ZIP codes near 51040.

510105152351063680205155851545

Data Sources & Citations

The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:

  • United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
  • United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS