SY18
Postcode districtPostcode district covering Llanidloes, in Powys.
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 SY18 postcode. How census figures are added up
Gigabit coverage by postcode district
Connected Nations (Ofcom) · January 2026
In SY18, 76.7% of homes and businesses could get gigabit-capable broadband in January 2026.
How SY18 compares
Each dot is a postcode district. The black line marks the middle one.
Is SY18 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SY18 at a rate of 50.5 per 1,000 people.
That compares with 66.4 per 1,000 people across SY.
In August 2026 alone, 16 cases of crime and anti-social behaviour were recorded in SY18.
In the 12 months to August 2026, the most common types were violence and sexual offences (116), anti-social behaviour (40) and other crime (34).
A year earlier, the recorded crime rate in SY18 was 48.1 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 SY18, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so SY18 has no single figure. Of its 3 neighbourhoods with a rank:
- Decile 6: 1 neighbourhood
- Decile 8: 2 neighbourhoods
Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.
Neighbourhoods in SY18
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Powys 010A | 2,323 | 35.2 per 1,000 | 6 | 45.5% |
| Powys 010C | 1,335 | 36.9 per 1,000 | 8 | 93.0% |
| Powys 010D | 1,449 | 80.5 per 1,000 | 8 | 92.4% |
MPs for SY18
- Steve WitherdenLabourMP for Montgomeryshire and Glyndŵr98% of SY18’s postcodes
- David ChadwickLiberal DemocratMP for Brecon, Radnor and Cwm Tawe1.8% of SY18’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 SY181
Postcode sectors in SY181
Council1
Postcode districts next to SY187
More in the SY postcode area2
SY18 in brief
SY18 is a postcode district covering Llanidloes, in Powys.
About 4,612 people lived in SY18 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £200,000 in 2025 across 59 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 50.5 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SY18 was £200,000 in 2025.
SY18 had 4,529 usual residents at the census.
In SY18, 76.7% of homes and businesses could get gigabit-capable broadband in January 2026.
In SY18, 1.8% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.