Australia ยท Postcode
Postcode 3400 is St Helens Plains in Victoria, Australia, covering 7 places.
| Postcode | 3400 |
| Place | St Helens Plains |
| Region | Victoria |
| District | Horsham |
| Country | Australia (AU) |
| Coordinates | -36.8, 142.3833 (map) |
| Place | Region | District |
|---|---|---|
| St Helens Plains | Victoria | Horsham |
| Brimpaen | Victoria | Horsham |
| Wonwondah South | Victoria | Horsham |
| Horsham West | Victoria | Horsham |
| Horsham | Victoria | Horsham |
| Wonwondah East | Victoria | Horsham |
| Wartook | Victoria | Horsham |
The postcode 3400 routes mail to St Helens Plains in the Victoria region of Australia. It serves 7 localities in total, which is common where one delivery area covers several villages or districts. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.