Onslow, IA zip code
Onslow, Iowa uses one zip code: 52321. Most of it is in Jones County. Together these zip codes are home to about 395 people.
Zip codes
1
Population
395
All zips combined
Largest zip
52321
395 residents
Zip codes in Onslow
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 52321 | 395 | $77,708 |