Korea Post

Korea Post’s barcode encodes a postal code for automated mail sorting. Unlike most postal barcodes, its bars are all the same height and width. The digits are encoded by where the bars sit.

Decode one

Scan or paste a barcode and see every part of it.

Make one

Generate a valid barcode from fields.

Where you’ll see it

Mail in South Korea.

The barcode carries a six-digit postal code. South Korea moved to five-digit postal codes in 2015, so you’re most likely to see it on older mail and preprinted stock.

Anatomy

Part	What it is
Postal code	6 digits. A hyphen between the third and fourth digits is printed but not encoded.
Check digit	1 digit

Check digit

The check digit uses a modified mod-10 calculation.

POSTNET: another postal barcode that encodes digits with bars of one width, using height instead of position.

Scanning it in your app

ScanField("Postal code", text: $postalCode)
    .barcodeTypes(.postal)

Specification

Seagull Scientific barcode guide: a secondary description. Korea Post’s own specification hasn’t been checked.

Reference

Retail (GTIN)

Logistics and industrial

2D

Postal

Documents

Decode one

Make one

Where you’ll see it

Anatomy

Check digit

Scanning it in your app

Specification

Decode one

Make one

​Where you’ll see it

​Anatomy

​Check digit

​Variants and related types

​Scanning it in your app

​Specification

Where you’ll see it

Anatomy

Check digit

Variants and related types

Scanning it in your app

Specification