Postal reference
ZIP 51040, Iowa
ZIP code 51040 is associated with Onawa in Iowa in the GeoNames postal reference.
Reference details
- State
- Iowa (IA)
- ZIP code
- 51040
- Associated localities
- Onawa
- County names in postal records
- Monona
- Approximate postal point
- 42.037, -96.1072
View point on map ↗
Postal information is adapted from GeoNames, CC BY 4.0. Locality associations and coordinates are approximate, not ZIP boundaries or a guarantee of current mail delivery.