SY23
Postcode districtPostcode district covering Aberystwyth, in Ceredigion.
Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an SY23 postcode. How census figures are added up
Gigabit coverage by postcode district
Connected Nations (Ofcom) · January 2026
In SY23, 66.6% of homes and businesses could get gigabit-capable broadband in January 2026.
How SY23 compares
Each dot is a postcode district. The black line marks the middle one.
Is SY23 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SY23 at a rate of 92.4 per 1,000 people.
That compares with 66.4 per 1,000 people across SY.
In August 2026 alone, 215 cases of crime and anti-social behaviour were recorded in SY23.
In the 12 months to August 2026, the most common types were violence and sexual offences (1,038), anti-social behaviour (605) and other crime (441).
A year earlier, the recorded crime rate in SY23 was 88.8 per 1,000 people.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.
Deprivation in SY23, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so SY23 has no single figure. Of its 18 neighbourhoods with a rank:
- Decile 3: 1 neighbourhood
- Decile 4: 4 neighbourhoods
- Decile 5: 4 neighbourhoods
- Decile 6: 1 neighbourhood
- Decile 7: 1 neighbourhood
- Decile 8: 2 neighbourhoods
- Decile 9: 4 neighbourhoods
- Decile 10 (Wales’s least deprived 10%): 1 neighbourhood
Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.
Neighbourhoods in SY23
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Ceredigion 001E | 1,774 | 31.0 per 1,000 | 8 | 79.1% |
| Ceredigion 002A | 1,355 | 96.6 per 1,000 | 9 | 73.4% |
| Ceredigion 002B | 2,109 | 324.6 per 1,000 | 4 | 50.3% |
| Ceredigion 002D | 1,172 | 262.8 per 1,000 | 4 | 65.2% |
| Ceredigion 002G | 2,921 | 24.8 per 1,000 | 9 | 47.6% |
| Ceredigion 002H | 1,415 | 103.2 per 1,000 | 7 | 64.5% |
| Ceredigion 003A | 1,320 | 74.6 per 1,000 | 3 | 87.5% |
| Ceredigion 003B | 1,643 | 67.5 per 1,000 | 4 | 94.8% |
| Ceredigion 003C | 1,007 | 146.2 per 1,000 | 5 | 54.3% |
| Ceredigion 003E | 1,036 | 104.7 per 1,000 | 9 | 84.7% |
| Ceredigion 003F | 1,453 | 22.8 per 1,000 | 9 | 60.6% |
| Ceredigion 005C | 1,544 | 28.3 per 1,000 | 5 | 76.3% |
| Ceredigion 005D | 1,187 | 20.2 per 1,000 | 5 | 74.2% |
| Ceredigion 005E | 1,155 | 67.9 per 1,000 | 5 | 68.3% |
| Ceredigion 011A | 1,226 | 35.5 per 1,000 | 10 | 85.5% |
| Ceredigion 011B | 1,518 | 35.2 per 1,000 | 8 | 75.0% |
| Ceredigion 011C | 2,011 | 202.6 per 1,000 | 4 | 50.8% |
| Ceredigion 011D | 2,008 | 28.7 per 1,000 | 6 | 74.4% |
MPs for SY23
- Ben LakePlaid CymruMP for Ceredigion Preseli100% of SY23’s postcodes
- David ChadwickLiberal DemocratMP for Brecon, Radnor and Cwm Tawe0.1% of SY23’s postcodes
As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.
Middle areas in SY234
Postcode sectors in SY236
Council1
Towns in SY231
Postcode districts next to SY237
More in the SY postcode area2
SY23 in brief
SY23 is a postcode district covering Aberystwyth, in Ceredigion.
About 29,410 people lived in SY23 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £215,000 in 2025 across 304 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 92.4 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SY23 was £215,000 in 2025.
SY23 had 28,373 usual residents at the census.
In SY23, 66.6% of homes and businesses could get gigabit-capable broadband in January 2026.
In SY23, 2.3% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.