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SY23

UK postcode district

Updated September 2026

District overview

Postcode units
1,284
Current units
985
Coordinate coverage
99%
Electoral wards
17

Coverage context

Countries represented
Wales
English regions represented
W99999999
Local authority codes
2
Terminated postcode units
299

Postcode sectors in SY23

Choose a sector to browse its complete postcode-unit directory.

6 sectors

Property

Across this district

View property report
11,236 recorded sales at this postcode
Address Date Price
4, Penbrynrodyn, Llanbadarn Fawr, Aberystwyth, SY23 3SU 29 July 2026 £145,000
4, Y Gerddi, Blaenplwyf, Aberystwyth, SY23 4DR 24 July 2026 £225,000
Brynawel, Trefechan, Aberystwyth, SY23 1BE 21 July 2026 £185,000

Schools

Across this district

View schools report
Open schools
17
Primary
0
Secondary
0

Recorded crime

Across this district

View crime report
Published events
2,250
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 1,021
  • Public order 195
  • Anti social behaviour 186
  • Criminal damage and arson 186
  • Drugs 165

Census 2021

Population and age profile

SY23 usual residents
28,422
Age-profile population
28,369

Age bands in SY23

Postcode district
Age 0 to 14
12.2%

3,455 residents

Age 15 to 24
25.7%

7,294 residents

Age 25 to 44
19.8%

5,624 residents

Age 45 to 64
22.4%

6,349 residents

Age 65 and over
19.9%

5,647 residents

How to read these estimates
The standard postcode headcounts and the commissioned age table are separate ONS outputs. Small counts are disclosure-controlled, and totals can differ slightly between tables. Coverage is England and Wales only.

Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.

Fixed broadband coverage

The median Ofcom availability percentage across 956 current postcode units in this district. Each postcode is weighted equally, not by premises.

Superfast, 30 Mbit/s+
100%
Ultrafast, 100 Mbit/s+
100%
Ultrafast, 300 Mbit/s+
100%
Gigabit-capable
100%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
100%
Decent broadband available from fixed wireless
0%

688 postcode units had 100% superfast coverage, 491 had 100% gigabit-capable coverage, and 73 had at least some premises without decent fixed or fixed-wireless access.

Coverage is a modelled postcode-level snapshot, not a speed test or a guarantee for a named property. Check availability with providers before making a decision. Ofcom does not publish postcode-level full-fibre coverage in this release for commercial-confidentiality reasons.

Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

NHS ODS

GP practices

4

in this district

  • LLANILAR HEALTH CENTRE

    LLANILAR, ABERYSTWYTH, SY23 4PA

    ODS code W92056

  • MEDDYGFA PADARN SURGERY

    PENGLAIS ROAD, ABERYSTWYTH, SY23 3DU

    ODS code W92024

  • MEDDYGFA'R LLAN

    CHURCH SURGERY, PORTLAND STREET, ABERYSTWYTH, SY23 2DX

    ODS code W92014

  • YSTWYTH MEDICAL GROUP

    PARC Y LLYN RETAIL PARK, LLANBADARN FAWR, ABERYSTWYTH, SY23 3TL

    ODS code W92025

Organisation records, not service availability
These are records marked active in NHS England's Organisation Data Service for England and Wales. Branch surgeries, pharmacies, dentists and hospitals are not included. They do not confirm patient registration, services, opening hours, appointments or care quality. Distances are straight-line from the postcode point.

Source acquired on 2026-09-03. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Evidence in context

A factual reading of the data in this report's scope. It is not a location score or a recommendation.

Property market

Recorded sales

The five-year median is £225,000 from 1,932 recorded sales in SY23. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for Ceredigion is £237,176 in June 2026, up 1.6% year on year.

Schools

Published establishments

17 open schools are in scope, including 0 primary and 0 secondary schools.

Counts describe active establishment records. They do not assess admissions, catchments or quality.

Recorded crime

Published police records

2,250 published events cover 12 months, averaging 187.5 events per published month. The largest recorded category is Violence and sexual offences with 1,021 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.