Postal Code Finder
Registry / Australia / Postal code prefixes / 54 / 5421 /

Postal code 5421 in Franklyn, Australia

Postal code 5421 is mapped to 2 locality records in Australia with administrative hierarchy and coordinates.

Verified data profile for Postal code 5421

Based on 2 records, 1 postal code values and 2 mapped localities. Coordinate coverage is 100.0%.

2
Records
1
Postal identifiers
100.0%
Geocoded
5421
Example code
Postal code Locality Administrative path Coordinates
5421 Franklyn South Australia / Goyder -33.1352, 139.0737
5421 Terowie South Australia / Goyder -33.1667, 138.9

Related postal lookups

Australia
Country
Postal code prefixes
Postal code prefixes
Prefix 54
Postal code range · 42 records
5417
Nearby postal code · 23 records
5418
Nearby postal code · 2 records
5419
Nearby postal code · 7 records
5420
Nearby postal code · 2 records
5422
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5431
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Postal code validation data

Use this page to validate one postal code or locality against real parent areas, nearby records and downloadable source rows. The canonical route for this record set is /postal-codes/australia/code/5421.

Records
2
Database rows represented by this canonical route.
Postal identifiers
1
Distinct postal code values available for this page.
Localities
2
Mapped place names or administrative entries.
Coordinate coverage
100.0%
Rows with latitude and longitude available.
Example
5421
Sample code from Franklyn.
Code Place Hierarchy Coordinates
5421 Franklyn South Australia / Goyder -33.1352, 139.0737
5421 Terowie South Australia / Goyder -33.1667, 138.9
Download postal data
CSV, JSON and XLSX exports for research, validation and data products.
Use the API
Query postal codes by country, place name, region or code prefix.
Implementation notes
Field definitions, canonical paths and practical lookup guidance.

Useful related pages

Australia
Country
Postal code prefixes
Postal code prefixes
Prefix 54
Postal code range · 42 records
5417
Nearby postal code · 23 records
5418
Nearby postal code · 2 records
5419
Nearby postal code · 7 records
5420
Nearby postal code · 2 records
5422
Nearby postal code · 14 records
5431
Nearby postal code · 19 records

Data questions

How should I validate 5421?

Validate the postal identifier together with country, locality and administrative hierarchy fields, not as a standalone global pattern.

What context is available for this record?

The page includes the parent country, related prefix or nearby codes, coordinates when available and source rows for download/API workflows.

Postal code range

This code belongs to the 54 prefix range for Australia.

View all 54 postal codes

How to validate postal code 5421

Treat 5421 as a text value, not a number. Postal identifiers can contain leading zeroes, spaces or letters in other countries, so applications should validate the country and original string together. For this page, the code is valid when it appears with one of the mapped localities below and the administrative path belongs to Australia.

Australia lookup
Open the country-level hierarchy and dataset exports.
Browse all prefixes
Compare this code with neighboring country ranges.
Prefix 54
View related codes in the same prefix range.

Mapped localities

Franklyn
South Australia / Goyder
-33.1352, 139.0737
Terowie
South Australia / Goyder
-33.1667, 138.9

Common lookup mistakes

A postal code can map to more than one locality record, and the same locality name can appear in different administrative areas. Always compare the country, postal code, place name and region together before treating a match as final.

Coordinates on this page are useful for map previews and approximate area checks. They should be read as locality or postal-area centroids, not as exact delivery addresses. For bulk validation, download the country dataset and keep this canonical URL as the human-readable reference for the code.

Nearby postal code lookups

These neighboring identifiers help compare adjacent code ranges inside Australia. Each link opens a canonical postal-code page with its mapped places and administrative context.

5417
Balah
5418
Collinsville
5419
Canowie
5420
Canowie Belt
5422
Cavenagh
5431
Amyton
5432
Baratta
5433
Bruce