Cardiff postcode areas
The CF postcode area covers Cardiff and surrounding South Wales. As the Welsh capital, it combines a busy commercial centre with extensive bilingual addressing needs.
Why accurate Cardiff addresses matter
- Faster checkout and forms for Cardiff customers
- PAF-verified addresses cut failed deliveries
- Cleaner data for fulfilment, CRM and analytics
- Correct formatting for multi-occupancy buildings
Local context
Cardiff Bay's regeneration created entirely new postcode districts over the past two decades.
Add Cardiff address lookup to your site
Use the address autocomplete API or the full Postcode Lookup API to let visitors find their Cardiff address in seconds. Browse every region on the postcode areas page.
Frequently asked questions
How do I find an address in Cardiff by postcode?
Enter a Cardiff postcode into AutoPostcode and select the exact address from the list. Results are sourced from Royal Mail PAF, so they're complete and correctly formatted.
Which postcode areas cover Cardiff?
Cardiff is covered by the CF postcode area, spanning roughly 32,000+ postcodes and around 500,000 delivery points.
Is the Cardiff address data accurate?
Yes — addresses come from Royal Mail PAF, the authoritative UK address file, which is refreshed regularly to reflect new and changed addresses.
Ready to get started?
Add Royal Mail PAF-verified UK address lookup to your site in minutes — start free, no card required.