# SY17

Postcode district covering Caersws, Llandinam and Carno, in Powys.

SY17 is a postcode district covering Caersws, Llandinam and Carno, in Powys. Median sale price £237,500 in 2025. Recorded crime 45.6 per 1,000 people.

Postcode district. Code SY17. In: [Postcodes](https://openindex.co.uk/postcode) › [SY](https://openindex.co.uk/postcode/sy)

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 SY17 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £237,500** (2025). The median price paid for a home in SY17 was £237,500 in 2025. Joint 665th cheapest of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026. https://openindex.co.uk/postcode/sy17#f-house-sales-median-price
- **Population: 3,494** (2021). SY17 had 3,494 usual residents at the census (ONS Census 2021). 367th least populated of 2,756. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/postcode/sy17#f-population
- **People in radon Affected Area squares: 100%** (2022). About 100% of people in SY17 live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022. https://openindex.co.uk/postcode/sy17#f-radon-affected-share
- **Gigabit broadband coverage: 56.6%** (January 2026). In SY17, 56.6% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026. https://openindex.co.uk/postcode/sy17#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=SY17) (Worked out by Open Index · 2022): About 100% of people in SY17 live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Sales per year by postcode district](https://openindex.co.uk/map/house-sales-per-year?place=SY17) (Worked out by Open Index · 2025): 46 homes were sold in SY17 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=SY17) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for SY17.
- [Population by postcode district](https://openindex.co.uk/map/population?place=SY17) (Census 2021, England and Wales): SY17 had 3,494 usual residents at the census.

## How SY17 compares

Each postcode district against every other postcode district the measure covers.

| Measure | SY17 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £237,500 | 10th cheapest | 25 postcode districts, SY · 2025 |
| Population | 3,494 | 3rd least populated | 25 postcode districts, SY · 2021 |
| People in radon Affected Area squares | 100% | joint most people in radon Affected Areas | 25 postcode districts, SY · 2022 |
| Gigabit broadband coverage | 56.6% | 8th lowest | 25 postcode districts, SY · Jan 2026 |

## Is SY17 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SY17 at a rate of 45.6 per 1,000 people.
That compares with 66.4 per 1,000 people across the SY postcode area.
In August 2026 alone, 10 cases of crime and anti-social behaviour were recorded in SY17.
In the 12 months to August 2026, the most common types were violence and sexual offences (57), anti-social behaviour (55) and other crime (23).
A year earlier, the recorded crime rate in SY17 was 45.9 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 SY17, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so SY17 has no single figure. Of its 2 neighbourhoods with a rank:
- Decile 6: 2 neighbourhoods

Source: Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.

## Neighbourhoods in SY17

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Powys 006A](https://openindex.co.uk/powys/neighbourhood/w01000433) | 2,272 | 62.4 per 1,000 | 6 | 57.9% |
| [Powys 010B](https://openindex.co.uk/powys/neighbourhood/w01000453) | 1,382 | 18.9 per 1,000 | 6 | 74.5% |

## Your MP

- [Montgomeryshire and Glyndŵr](https://openindex.co.uk/constituency/montgomeryshire-and-glyndwr): Steve Witherden (Labour), MP since July 2024.

As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Postcode sectors in SY17

[SY17 5 (178 postcodes)](https://openindex.co.uk/postcode/sy17-5)

## Council

[Powys](https://openindex.co.uk/powys)

## Postcode districts next to SY17

[SY16](https://openindex.co.uk/postcode/sy16), [SY18](https://openindex.co.uk/postcode/sy18), [SY19](https://openindex.co.uk/postcode/sy19), [SY21](https://openindex.co.uk/postcode/sy21)

## Nearest rail stations

[Caersws (4.8 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-3.4325,52.5161)

## More in the SY postcode area

[All SY postcode districts](https://openindex.co.uk/postcode/sy), [Every UK postcode area](https://openindex.co.uk/postcode)

## SY17 in brief

SY17 is a postcode district covering Caersws, Llandinam and Carno, in Powys.
About 3,549 people lived in SY17 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £237,500 in 2025 across 46 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 45.6 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SY17 was £237,500 in 2025.
SY17 had 3,494 usual residents at the census.
About 100% of people in SY17 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In SY17, 56.6% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: SY17
- Postcode area: [SY](https://openindex.co.uk/postcode/sy)
- Constituency: [Montgomeryshire and Glyndwr †](https://openindex.co.uk/constituency/montgomeryshire-and-glyndwr)
- Council: [Powys †](https://openindex.co.uk/powys)
- Area: 150 km²
- People, mid-2024: 3,549*
- Neighbourhoods: 2
- Output areas: 11

* People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact.
† Best fit: the constituency, council and nation this postcode district mostly lies in. Its edges do not follow theirs.

## Next door

[SY19](https://openindex.co.uk/postcode/sy19), [SY16](https://openindex.co.uk/postcode/sy16), [SY18](https://openindex.co.uk/postcode/sy18), [SY21](https://openindex.co.uk/postcode/sy21)

## Latest updates for SY17

- August 2026 house prices published: HM Land Registry and partners · Oct 2026.
- September 2026 rent published: ONS private rents · Oct 2026.
- Dental practices updated: NHS England · Oct 2026.
- Schools updated: Ofsted · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/SY17

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/sy17, or to one figure with its anchor, https://openindex.co.uk/postcode/sy17#f-house-sales-median-price.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.9. The HTML page: https://openindex.co.uk/postcode/sy17