Postcode overview
Postcode 6403 is used for GRASS VALLEY in Western Australia, Australia. Use this page to compare the postcode details, map position, nearby postcodes, related suburbs, and nearby public places matched from the postcode centre.
Postcode details
- Postcode
- 6403
- Suburbs / Localities
- GRASS VALLEY
- State / Region
- Western Australia
- Country
- Australia
- Type
- Delivery Area
- Coordinates
- -31.636653, 116.820351
Administrative areas
These fields describe the broader administrative area connected with postcode 6403.
- State / Territory
- Western Australia
- Local government area
- Northam
- LGA code
- 56730
- SA1 area
- Meenaar
- SA2 area
- Northam
- SA3 area
- Wheat Belt - South
- SA4 area
- Western Australia - Wheat Belt
- Federal electorate
- Pearce
- State electorate
- Central Wheatbelt (Agricultural)
- PHN region
- Country WA
Postcode classification
Use these listed reference fields for general postcode research. Postal charge zones are source dataset codes where available, not price quotes or delivery guarantees. For official delivery or address verification, check the relevant postal authority.
- Postcode type
- Delivery Area
- Delivery centre / mail centre
- NORTHAM POST SHOP
- Postal charge zone
- W2
- Data update note
- Updated 6-Feb-2020
- Remoteness classification
- Inner Regional Australia
- MMM classification
- MMM 5
- Locality records
- 1
- Nearby postcode links
- 8
- Latitude / Longitude
- -31.636653, 116.820351
- Coordinate precision
- Precise source coordinates
- Altitude
- 212.813339233398 m
Suburbs and localities in postcode 6403
6403 postcode location in map
Map tiles and attribution from OpenStreetMap contributors.
Nearby postcodes
Nearby local places
Nearby parks, BBQs and places to visit
Around GRASS VALLEY postcode 6403, this directory highlights 2 viewpoints, ranked by distance from the postcode centre.
These nearby places are matched by distance from the postcode centre and may not describe postal delivery areas.
Dataset generated Jul 19, 2026. Place data © OpenStreetMap contributors, available under the ODbL. OpenStreetMap coverage may be incomplete or vary by area.