13,353
Population
5,937
Households
310
Postcodes
3
Sectors
About CF42
The CF42 postcode district covers Treorchy, Cwmparc, Ynyswen, Treherbert, Blaencwm, Blaenrhondda in Rhondda Cynon Taf. It falls under the Treorchy post town. The area has a population of approximately 13,353.