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SY22

Postcode district

Postcode district covering Llanfyllin, Llansantffraid-ym-Mechain and Llanymynech, 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 SY22 postcode. How census figures are added up

Open in map

Radon Affected Area by postcode district

Worked out by Open Index · 2022

Under 1%90% or more

About 100% of people in SY22 live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£258,750
Joint 822nd cheapest of 2,235
Worked out by Open Index
Population
9,149
676th least populated of 2,756
ONS Census 2021 · 2021
People in radon Affected Area squares
100%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
56.1%
UK 87.8%
Ofcom · Jan 2026

How SY22 compares

Each dot is a postcode district. The black line marks the middle one.

SY22Middle
Median sale price25 postcode districts, SY · 2025
Median sale price: every postcode district in SY25 areas from £180,000 to £395,000. The middle area is £259,125. SY22 is £258,750.
£258,75012th cheapest
Population25 postcode districts, SY · 2021
Population: every postcode district in SY25 areas from 1,157 to 35,085. The middle area is 11,060. SY22 is 9,149.
9,14912th least populated
People in radon Affected Area squares25 postcode districts, SY · 2022
People in radon Affected Area squares: every postcode district in SY25 areas from 7.0% to 100.0%. The middle area is 100.0%. SY22 is 100.0%.
100%joint most people in radon Affected Areas
Gigabit broadband coverage25 postcode districts, SY · Jan 2026
Gigabit broadband coverage: every postcode district in SY25 areas from 30.4% to 95.8%. The middle area is 69.4%. SY22 is 56.1%.
56.1%joint 6th lowest

Is SY22 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SY22 at a rate of 98.9 per 1,000 people.

That compares with 66.4 per 1,000 people across the SY postcode area.

In August 2026 alone, 49 cases of crime and anti-social behaviour were recorded in SY22.

In the 12 months to August 2026, the most common types were anti-social behaviour (585), violence and sexual offences (221) and other crime (64).

A year earlier, the recorded crime rate in SY22 was 43.0 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 SY22, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so SY22 has no single figure. Of its 5 neighbourhoods with a rank:
  • Decile 5: 1 neighbourhood
  • Decile 6: 1 neighbourhood
  • Decile 7: 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 SY22

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Powys 001A1,58564.0 per 1,000519.7%
Powys 001D1,98859.7 per 1,000743.1%
Powys 001E2,399241.2 per 1,000624.6%
Powys 002B2,14913.0 per 1,000869.9%
Powys 002C1,85446.5 per 1,000892.0%

MPs for SY22

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 SY222

Postcode sectors in SY222

Council1

Postcode districts next to SY223

More in the SY postcode area2

SY22 in brief

SY22 is a postcode district covering Llanfyllin, Llansantffraid-ym-Mechain and Llanymynech, in Powys.

About 9,465 people lived in SY22 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £258,750 in 2025 across 124 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 98.9 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in SY22 was £258,750 in 2025.

SY22 had 9,149 usual residents at the census.

About 100% of people in SY22 live in a 1 km square that the radon atlas marks as a radon Affected Area.

In SY22, 56.1% of homes and businesses could get gigabit-capable broadband in January 2026.