CF81 postcode area guide — Caerphilly
House prices, crime, broadband speeds, mobile signal, schools and demographics for the CF81 postcode district in Caerphilly — every official dataset on one page.
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Where is CF81?
Broadband & internet speeds in CF81
Strong coverage
Superfast (30Mb+)
98%
Ultrafast (300Mb+)
46.5%
Gigabit-capable
46.5%
Below USO (10Mb)
0%
Broadband availability in the CF81 postcode district (Caerphilly) is Strong — superfast is near-universal and gigabit is rolling out. Across the 385 postcodes Ofcom measures in CF81, superfast broadband (30 Mbit/s or faster) reaches 98% of premises and gigabit-capable lines are available to 46.5%.
Around 0% of premises in CF81 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.
Sample postcodes in CF81
| Postcode | Superfast | Gigabit |
|---|---|---|
| CF81 8AA | 100% | 100% |
| CF81 8AB | 100% | 0% |
| CF81 8JA | 100% | 0% |
| CF81 8JB | 100% | 0% |
| CF81 8JD | 100% | 0% |
| CF81 8JE | 100% | 0% |
| CF81 8JF | 100% | 0% |
| CF81 8JG | 100% | 0% |
| CF81 8JH | 100% | 0% |
| CF81 8JJ | 100% | 7.7% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Caerphilly
Ofcom's coverage model for the wider Caerphilly district (84,902 premises):
4G indoors — all networks
94.3%
4G outdoors — all networks
99.9%
5G outdoors — all networks
6%
Voice indoors — all networks
96.8%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in CF81
Police recorded 32 incidents within about a mile of the centre of CF81 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Violence & sexual offences | 16 | 50.0% |
| Anti-social behaviour | 6 | 18.8% |
| Criminal damage & arson | 2 | 6.3% |
| Other theft | 2 | 6.3% |
| Other crime | 2 | 6.3% |
| Burglary | 1 | 3.1% |
| Drugs | 1 | 3.1% |
| Public order | 1 | 3.1% |
Raw counts favour busy town centres — a high street with shops and nightlife records more incidents than a residential cul-de-sac. Source: police.uk open data (point sample around the district centroid).
House prices in CF81
Based on 125 sales registered with HM Land Registry in the last 12 months, the median sold price in CF81 is £139,000, up 2.2% on the previous year (£136,000).
Detached
£327,500
11 sales
Semi-detached
£173,000
33 sales
Terraced
£125,000
75 sales
Latest recorded sales in CF81
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 28 May 2026 | £125,000 | Semi-detached | Glyn Derw | CF81 9GS |
| 18 May 2026 | £140,000 | Terraced | Henry Street | CF81 8UA |
| 11 May 2026 | £153,000 | Terraced | Mcdonnell Road | CF81 8UE |
| 6 May 2026 | £95,000 | Semi-detached | Bailey Street | CF81 9HX |
| 30 Apr 2026 | £95,000 | Terraced | Usk Road | CF81 8RJ |
| 20 Apr 2026 | £170,000 | Terraced | Gilfach Street | CF81 8LQ |
| 17 Apr 2026 | £182,000 | Terraced | Park Place | CF81 8LZ |
| 16 Apr 2026 | £130,000 | Terraced | Park Place | CF81 8LZ |
| 10 Apr 2026 | £102,000 | Terraced | Yew Street | CF81 9BE |
| 9 Apr 2026 | £92,500 | Terraced | Cross Street | CF81 8RX |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Caerphilly demographics
Census 2021 figures for the wider Caerphilly district (175,952 residents, 76,255 households):
| Age profile | |
|---|---|
| Under 15 | 18.5% |
| 15–29 | 22.1% |
| 30–44 | 18.7% |
| 45–64 | 20.7% |
| 65+ | 20.1% |
| Housing tenure | |
|---|---|
| Owner-occupied | 67.5% |
| Private rented | 13.4% |
| Social rented | 5.6% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around CF81
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Deri Primary School | Not applicable | — | — | CF81 9HZ |
| Fochriw Primary School | Not applicable | — | — | CF81 9LL |
| Gilfach Fargoed Primary School | Not applicable | — | — | CF81 8LB |
| Ysgol Gymraeg Gilfach Fargoed | Not applicable | — | — | CF81 8JG |
| Heolddu Comprehensive School | Not applicable | — | — | CF81 8XL |
| The Lewis School | Not applicable | — | — | CF81 8LJ |
| Park Primary School Bargoed | Not applicable | — | — | CF81 8PN |
| Aberbargoed Primary School | Not applicable | — | — | CF81 9DD |
Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.
Food hygiene ratings in CF81
138 rated food businesses operate in CF81. 73 hold the top rating of 5, 32 are rated 4, and 6 are rated 2 or below.
Among the 5-rated: @Cornerstone, Aberbargoed Fire Station, Aberbargoed Indian Takeaway, Aberbargoed Primary Canteen, Bargoed Bowls Club.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in CF81
From a sample of 248 Energy Performance Certificates across 11 CF81 postcodes, the most common rating is band D (average band D). 40% of sampled homes are rated C or better.
Band B
3%
Band C
36%
Band D
40%
Band E
17%
Band F
4%
Source: MHCLG Energy Performance of Buildings Data (England & Wales), sampled at postcode level and refreshed monthly. Individual certificates are on each postcode’s page.
Phone area codes for Caerphilly
Landlines around CF81 typically use:
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What's it like living in CF81?
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Moving to CF81? Sort your connectivity first
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Postcodes in CF81
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Frequently asked questions
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Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.