SY23 postcode area guide — Ceredigion
House prices, crime, broadband speeds, mobile signal, schools and demographics for the SY23 postcode district in Ceredigion — every official dataset on one page.
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Where is SY23?
Broadband & internet speeds in SY23
Strong coverage
Superfast (30Mb+)
84.9%
Ultrafast (300Mb+)
58.6%
Gigabit-capable
58.6%
Below USO (10Mb)
2.7%
Broadband availability in the SY23 postcode district (Ceredigion) is Strong — superfast is near-universal and gigabit is rolling out. Across the 969 postcodes Ofcom measures in SY23, superfast broadband (30 Mbit/s or faster) reaches 84.9% of premises and gigabit-capable lines are available to 58.6%.
Around 2.7% of premises in SY23 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 SY23
| Postcode | Superfast | Gigabit |
|---|---|---|
| SY23 1AA | 100% | 0% |
| SY23 1AB | 100% | 100% |
| SY23 1AS | 100% | 2.2% |
| SY23 1AT | 100% | 100% |
| SY23 1BA | 100% | 100% |
| SY23 1BB | 100% | 100% |
| SY23 1BD | 100% | 100% |
| SY23 1BE | 100% | 100% |
| SY23 1BG | 100% | 100% |
| SY23 1BH | 100% | 100% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Ceredigion
Ofcom's coverage model for the wider Ceredigion district (39,509 premises):
4G indoors — all networks
72.2%
4G outdoors — all networks
92.1%
5G outdoors — all networks
—
Voice indoors — all networks
76.7%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in SY23
Police recorded 1 incidents within about a mile of the centre of SY23 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Public order | 1 | 100.0% |
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 SY23
Based on 258 sales registered with HM Land Registry in the last 12 months, the median sold price in SY23 is £225,000, up 2.3% on the previous year (£220,000).
Detached
£300,000
80 sales
Semi-detached
£215,000
67 sales
Terraced
£195,000
64 sales
Flat / maisonette
£176,000
32 sales
Latest recorded sales in SY23
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 22 May 2026 | £175,000 | Terraced | SY23 4UE | |
| 22 May 2026 | £260,000 | Semi-detached | SY23 3PF | |
| 21 May 2026 | £78,000 | Terraced | Brynrheidol Estate | SY23 3SP |
| 21 May 2026 | £425,000 | Detached | SY23 5ND | |
| 18 May 2026 | £242,500 | Terraced | Ger Y Cwm | SY23 3FA |
| 15 May 2026 | £249,995 | Terraced | Union Street | SY23 1NX |
| 15 May 2026 | £128,250 | Terraced | Brynrheidol Estate | SY23 3SP |
| 14 May 2026 | £216,000 | Flat | Y Lanfa | SY23 1AS |
| 13 May 2026 | £362,500 | Terraced | Caradoc Road | SY23 1ES |
| 12 May 2026 | £515,000 | Detached | Cae Bach Y Rhiw | SY23 4QS |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
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Who lives here? Ceredigion demographics
Census 2021 figures for the wider Ceredigion district (71,474 residents, 30,891 households):
| Age profile | |
|---|---|
| Under 15 | 14.1% |
| 15–29 | 24.6% |
| 30–44 | 14.2% |
| 45–64 | 21.3% |
| 65+ | 25.7% |
| Housing tenure | |
|---|---|
| Owner-occupied | 68.6% |
| Private rented | 20.7% |
| Social rented | 8.1% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around SY23
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Ysgol Penllwyn | Not applicable | — | — | SY23 3LP |
| Ysgol Gyfun Penweddig | Not applicable | — | — | SY23 3QN |
| Ysgol Penglais | Not applicable | — | — | SY23 3AW |
| Ysgol Padarn Sant | Not applicable | — | — | SY23 1EZ |
| Ysgol Gynradd Wirfoddol Myfenydd | Not applicable | — | — | SY23 5AT |
| Ysgol Penrhyncoch | Not applicable | — | — | SY23 3EH |
| Ysgol Plascrug | Not applicable | — | — | SY23 1HL |
| Ysgol Syr John Rhys | Not applicable | — | — | SY23 3JX |
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 SY23
327 rated food businesses operate in SY23. 207 hold the top rating of 5, 54 are rated 4, and 8 are rated 2 or below.
Among the 5-rated: @Aberista, Aber Bay Holiday Park, AberSU Community Fridge, AberSushi, Aberystwyth Arts Centre.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in SY23
From a sample of 101 Energy Performance Certificates across 10 SY23 postcodes, the most common rating is band D (average band E). 22% of sampled homes are rated C or better.
Band B
2%
Band C
20%
Band D
32%
Band E
27%
Band F
11%
Band G
9%
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 Ceredigion
Landlines around SY23 typically use:
Had a call from an unknown number? Use our free UK phone number checker to see who called.
What's it like living in SY23?
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Moving to SY23? Sort your connectivity first
We arrange broadband, full-fibre, leased lines, VoIP and business mobiles across Ceredigion — free, no-obligation quote.
Postcodes in SY23
Neighbouring districts
All Shrewsbury (SY) postcode districts ›
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.