NP12 postcode district: Blackwood and around, Caerphilly
NP12 is a postcode district in Wales, with 904 postcodes in use in 6 sectors. It has postcodes in Blackwood, Pontllanfraith, Oakdale and 2 more places. Its council is Caerphilly.
- Postcodes in use
- 904
- Sectors
- 6
- Council
- Caerphilly
- Places
- 5 places
Source: ONS Postcode Directory, August 2026, loaded 20 October 2026.
Every postcode in NP12, by gigabit broadband
- No home or business can get gigabit: 80
- Some can get gigabit: 94
- Every home and business can get gigabit: 721
- Ofcom gives no figure: 9
- Outline: where 5 or more postcodes without gigabit lie together
Of the 904 postcodes in NP12 that ONS places, 80 have no home or business that can get gigabit, 94 have some that can, 721 can all get it and 9 have no Ofcom figure.
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. A dashed outline shows where 5 or more lie within 160 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.
The middle of its postcodes: latitude 51.6691, longitude -3.1980. Open this area on OpenStreetMap
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.
Postcodes without gigabit
80 postcodes here have no gigabit. These are the 12 first in postcode order.
Where the postcodes without gigabit lie together
What broadband can you get in NP12?
Ofcom reports on 895 of the 904 postcodes in NP12. At 721 of them every home and business can get gigabit broadband, and at 1 some cannot get decent broadband (10 Mbit/s).
Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.
Check one address on Ofcom's checkerSource: Ofcom Connected Nations, Connected Nations, Spring 2026, data for January 2026.
What do homes sell for in NP12?
Homes in NP12 sold for a typical £210,000 in the 12 months to September 2026, across 313 sales, HM Land Registry's figures show. The 12 months before gave £210,000 from 495 sales: not a change larger than chance would explain, given which homes happened to sell.
- Detached £328,750 84 sales
- Semi-detached £205,000 136 sales
- Terraced £169,500 93 sales
Each bar is that kind's typical price, against the most expensive kind here.
Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.
Source: HM Land Registry Price Paid Data, files dated 28 October 2026.
Postcodes in NP12
Pick a sector, then a postcode. A sector is the district plus the next digit.
Places in NP12
Towns and villages with postcodes in NP12, and how many each has here.
Who covers NP12
How many of the district's postcodes in use fall under each council, constituency and police force area.
Councils
- Caerphilly904
Constituencies
- Newport West and Islwyn533
- Caerphilly365
- Blaenau Gwent and Rhymney6
Police force areas
- Gwent904
Next to NP12
"Next to" is by number: the districts before and after NP12 in the NP area.
Check a postcode
Where the facts on this page come from
- Office for National Statistics: ONS Postcode Directory
- Ofcom Connected Nations
- HM Land Registry Price Paid Data
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.
Licence: Open Government Licence v3.0.
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