CF31 5 postcode sector in the CF31 district

CF31 5 is a sector of the CF31 district: every postcode that starts CF31 5. It has 97 postcodes in use, one of them a large-user postcode. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the CF31 5 sector, and which are new since 2020

Map of every postcode in the CF31 5 sector, by new since 2020 Of the 97 postcodes in the CF31 5 sector that ONS places, 2 are new since 2020 and 95 were in use before 2020. Places named: Bryntirion, Laleston and Merthyr Mawr. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A48A473 CF31 5AA: before 2020CF31 5AB: before 2020CF31 5AD: before 2020CF31 5AE: before 2020CF31 5AF: before 2020CF31 5AG: before 2020CF31 5AH: before 2020CF31 5AJ: before 2020CF31 5AL: before 2020CF31 5AN: before 2020CF31 5AP: before 2020CF31 5AQ: before 2020CF31 5AR: before 2020CF31 5AS: before 2020CF31 5AT: before 2020CF31 5AU: before 2020CF31 5AW: before 2020CF31 5AY: before 2020CF31 5AZ: before 2020CF31 5BA: before 2020CF31 5BB: before 2020CF31 5BD: before 2020CF31 5BE: before 2020CF31 5BF: before 2020CF31 5BG: before 2020CF31 5BH: before 2020CF31 5BJ: before 2020CF31 5BL: before 2020CF31 5BN: before 2020CF31 5BP: before 2020CF31 5BQ: before 2020CF31 5BR: before 2020CF31 5BS: before 2020CF31 5BT: before 2020CF31 5BU: before 2020CF31 5BW: before 2020CF31 5BX: before 2020CF31 5BY: before 2020CF31 5BZ: before 2020CF31 5DA: before 2020CF31 5DB: before 2020CF31 5DD: before 2020CF31 5DE: before 2020CF31 5DF: before 2020CF31 5DG: before 2020CF31 5DH: before 2020CF31 5DJ: before 2020CF31 5DL: before 2020CF31 5DN: before 2020CF31 5DP: before 2020CF31 5DQ: before 2020CF31 5DR: before 2020CF31 5DS: before 2020CF31 5DT: before 2020CF31 5DU: before 2020CF31 5DW: before 2020CF31 5DX: before 2020CF31 5DY: before 2020CF31 5DZ: before 2020CF31 5EA: before 2020CF31 5EB: before 2020CF31 5ED: before 2020CF31 5EE: before 2020CF31 5EF: before 2020CF31 5EG: before 2020CF31 5EH: before 2020CF31 5EJ: before 2020CF31 5EL: before 2020CF31 5EN: before 2020CF31 5EP: before 2020CF31 5EQ: before 2020CF31 5ER: before 2020CF31 5ES: before 2020CF31 5EU: before 2020CF31 5EW: before 2020CF31 5EX: before 2020CF31 5EY: before 2020CF31 5EZ: before 2020CF31 5FA: before 2020CF31 5FB: before 2020CF31 5FD: before 2020CF31 5FE: before 2020CF31 5FF: before 2020CF31 5FG: before 2020CF31 5FH: before 2020CF31 5FJ: before 2020CF31 5FL: before 2020CF31 5FN: before 2020CF31 5FP: before 2020CF31 5FQ: before 2020CF31 5FR: before 2020CF31 5FS: before 2020CF31 5FW: before 2020CF31 5GA: before 2020CF31 5HA: before 2020CF31 5FT: new since 2020CF31 5FU: new since 2020 Bryntirion, Laleston and Merthyr Mawr Map of every postcode in the CF31 5 sector, by new since 2020 Of the 97 postcodes in the CF31 5 sector that ONS places, 2 are new since 2020 and 95 were in use before 2020. Places named: Bryntirion, Laleston and Merthyr Mawr. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A48 Bryntirion, Laleston and Merthyr Mawr
  • New since 2020: 2
  • In use before 2020: 95

Of the 97 postcodes in the CF31 5 sector that ONS places, 2 are new since 2020 and 95 were in use before 2020.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. No boundary is drawn. Names in italics are council wards: we hold no town or village names here.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The 2 newest postcodes

CF31 5FUJuly 2023CF31 5FTAugust 2021

What do homes sell for in CF31 5?

Homes in CF31 5 sold for a typical £299,995 in the 12 months to August 2026, across 79 sales, up 7.1% on the 12 months before, HM Land Registry's figures show.

£299,995 typical price, the 12 months to August 2026
£280,000 12 months to August 2025
▲ up 7.1% on the 12 months before
  • Detached £354,950 51 sales
  • Semi-detached £238,500 12 sales
  • Terraced £195,000 14 sales
  • Flat or maisonette 2 sales, too few to price

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value at the postcodes that start CF31 5. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in CF31 5

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

CF31 5AACF31 5ABCF31 5ADCF31 5AECF31 5AFCF31 5AGCF31 5AHCF31 5AJCF31 5ALCF31 5ANCF31 5APCF31 5AQCF31 5ARCF31 5ASCF31 5ATCF31 5AUCF31 5AWCF31 5AYCF31 5AZCF31 5BACF31 5BBCF31 5BDCF31 5BECF31 5BFCF31 5BGCF31 5BHCF31 5BJCF31 5BLCF31 5BNCF31 5BPCF31 5BQCF31 5BRCF31 5BSCF31 5BTCF31 5BUCF31 5BWCF31 5BXCF31 5BYCF31 5BZCF31 5DACF31 5DBCF31 5DDCF31 5DECF31 5DFCF31 5DGCF31 5DHCF31 5DJCF31 5DLCF31 5DNCF31 5DPCF31 5DQCF31 5DRCF31 5DSCF31 5DTCF31 5DUCF31 5DWCF31 5DXCF31 5DYCF31 5DZCF31 5EACF31 5EBCF31 5EDCF31 5EECF31 5EFCF31 5EGCF31 5EHCF31 5EJCF31 5ELCF31 5ENCF31 5EPCF31 5EQCF31 5ERCF31 5ESCF31 5EUCF31 5EWCF31 5EXCF31 5EYCF31 5EZCF31 5FACF31 5FBCF31 5FDCF31 5FECF31 5FFCF31 5FGCF31 5FHCF31 5FJCF31 5FLCF31 5FNCF31 5FPCF31 5FQCF31 5FRCF31 5FSCF31 5FTCF31 5FUCF31 5FWCF31 5GACF31 5HA

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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