Halfway House, Gauteng
Carlswald Postal Code
Street code
PO Box code
Carlswald, Halfway House, Gauteng
Carlswald is listed under Halfway House in Gauteng. Its street code is 1684 and its box code is 1685. That is not the same as the Halfway House town code (1685), so use the Carlswald code on anything going to an address here. Landlines here use the 011 dialling code.
Suburbs sharing a code with Carlswald
| Suburb | Street code | Box code |
|---|---|---|
| Allandale | 1685 | 1685 |
| Austinview Ext 1 | 1685 | 1685 |
| Blue Hills | 1685 | 1685 |
| Crowthorne | 1685 | 1684 |
| Glen Austin | 1685 | 1685 |
| Glen Austin Ext 1 | 1685 | 1685 |
| Glen Austin Ext 2 | 1685 | 1685 |
| Glen Austin Ext 3 | 1685 | 1685 |
| Halfway Gardens | 1686 | 1685 |
| Halfway Gardens Ext 1 | 1686 | 1685 |
| Halfway Gardens Ext 12 | 1686 | 1685 |
| Halfway Gardens Ext 128 | 1685 | 1685 |
How to write an address in Carlswald
South Africa uses two kinds of postal code. A street code goes on anything delivered to a physical address, including courier parcels and online orders. A box code goes on post sent to a PO Box or Private Bag at the post office. Using the wrong one can send your post to the wrong sorting office.
Street address
Recipient name12 Example Street
Carlswald
Halfway House
1684
PO Box
Recipient namePO Box 123
Carlswald
1685
Post office in Halfway House
No branch here is listed as active by the South African Post Office. 2 branches are closed or not trading.Status as published in SAPO's branch list of 2026/04; phone before you go.
| Branch | Status | Phone |
|---|---|---|
| Halfway House | Inactive - Not Trading. Nearest alternative: Olifantsfontein (0113161340) | 0118050044 |
| Randjesfontein | Inactive - Not Trading. Nearest alternative: Sunninghill West (0118030697) | 0113140463 |
Full list: every post office branch and its status.
Frequently asked questions
What is the postal code for Carlswald?
Carlswald in Halfway House has street code 1684 and box code 1685, according to the South African Post Office.
Which code do I use for a delivery to Carlswald?
Use the street code 1684 for anything delivered to a house or business in Carlswald, including courier and online orders. The box code 1685 is only for PO Box and Private Bag addresses.
Which town and province is Carlswald in?
Carlswald is listed under Halfway House, Gauteng.
Which other suburbs share Carlswald's postal code?
Allandale, Austinview Ext 1, Blue Hills, Crowthorne, Glen Austin, Glen Austin Ext 1, Glen Austin Ext 2 and Glen Austin Ext 3 share a code with Carlswald.
60 suburbs
All postal codes in Halfway House
Postal codes come from the South African Post Office's domestic postal code list, and post office branch status from SAPO's branch list (updated 2026-04-24). Provinces and distances are worked out from GeoNames place data. Spotted a wrong code? Tell us.