As a box code, 1821 is used for 38 post office box locations.
Suburbs using 1821 as street code
| Suburb | Town | Province |
|---|---|---|
| Greyville | Lenasia | Gauteng |
| Greyville Ext | Lenasia | Gauteng |
| Greyville Ext 2 | Lenasia | Gauteng |
| Greyville Ext 4 | Lenasia | Gauteng |
Postal code 1821
Lenasia, Gauteng
1821 is a street and PO Box code in Gauteng, South Africa, mainly serving Lenasia. As a street code it covers 4 suburbs and is used for physical addresses and courier deliveries.