52309 vs 52321 ZIP Codes
Monmouth, IA · Onslow, IA
| Metric | 52309 | 52321 |
|---|---|---|
| City | Monmouth | Onslow |
| County | Jackson | Jones |
| State | Iowa | Iowa |
| Time zone | Central Time | Central Time |
| Population | 397 | 404 |
Demographic figures come from U.S. Census Bureau / ACS data included in the source ZIP dataset; many ZIP codes have no demographic figures in that dataset.