ZIP Code 51040 Population
Onawa, Iowa
Population
3,531
Households
1,539
Median Age
44.0
Population Details
| Average Household Size | 2.29 persons |
|---|---|
| Data Source | US Census Bureau, 2012–2016 ACS 5-year estimates |
Frequently Asked Questions
ZIP code 51040 (Onawa, IA) has a population of 3,531 according to US Census Bureau, 2012–2016 ACS 5-year estimates.
There are 1,539 households in ZIP code 51040.