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Postcode district · Llanidloes

SY18 area guide

Who lives in SY18, what homes sell for, and how it compares on crime, schools and transport.

Council
Powys
Region
Wales
Population
10,363 (2024)
At a glance

What SY18 is like

The SY18 postcode district in Powys covers 225 live postcodes and is home to about 10,363 people across 6 census neighbourhoods. 69.3% of households own their home, 19.7% rent privately and 10.6% are in social housing. The biggest age group is 60–64, and 54.3% of adults are in work. On deprivation it sits close to the middle of the range for Wales. Higher-harm crime is around the national middle. Homes in SY18 sold for a median of £217,500 over the year to August 2026.

Scores

How SY18 compares

Each figure is set against Wales as a whole. Follow a score for the detail behind it.

AffluenceMore
6.5/ 10

Around the middle — decile 1 is the most deprived tenth of Wales, 10 the least.

CrimeMore
5/ 10

Around the middle — 21.4 higher-harm crimes per 1,000 people a year vs 31.1 nationally.

House pricesMore
£217,500

Median over 38 sales in SY18, +5.5% on the year before.

TransportMore
0.7/ 10

Poor — 0 stations within a mile, 4 bus stops within 800m.

SchoolsMore
5

5 schools in SY18. None has a published inspection grade.

Household incomeMore
£41,012

Average a year, before tax — higher than 14% of neighbourhoods in England and Wales.

What stands out

Worth knowing before you invest

Only flagged where this area is materially different from the national picture.

  1. 01
    A big private rental marketPositive

    19.7% of households rent privately, against 17% across Wales. Tenant demand is established here.

  2. 02
    Prices risingPositive

    The median sale price in SY18 is up 5.5% on the year before.

  3. 03
    An older population

    29.4% of residents are 65 or over, against 21.3% across Wales.

Questions

SY18 FAQs

01
Is SY18 a good place to live?

Deprivation, crime, schools and transport at a glance.

On the Welsh Index of Multiple Deprivation 2025 it averages decile 6.5 of 10, where 10 is the least deprived tenth of Wales. Higher-harm crime runs at 21.4 per 1,000 people a year, band 5 of 10 nationally. Transport connectivity scores 0.7 out of 10 (poor).
02
How much does a house cost in SY18?

The median sale price over the last year was £217,500.

Homes in SY18 sold for a median of £217,500 across 38 sales in the year to August 2026, +5.5% on the year before. Prices come from HM Land Registry's record of every residential sale.
03
Is SY18 safe?

How crime here compares with the rest of the country.

Higher-harm crime — violence, robbery, burglary, vehicle crime and weapons offences — runs at 21.4 offences per 1,000 people a year around SY18, well below the 31.1 average across England and Wales, band 5 of 10.
04
Who lives in SY18?

Age, home ownership and housing from the census.

The biggest age group is 60–64, at 9.1% of residents. 69.3% of households own their home. The most common home is detached (52.8%).
05
Which council covers SY18?

SY18 is in Powys.

SY18 is in Powys, in Wales. Council tax, planning applications and bin collections are handled there.
06
How well connected is SY18?

Connectivity scores 0.7 out of 10.

There are 4 bus stops within 800m and 0 stations and tram stops within a mile, scoring 0.7 out of 10 (poor).

Sources: Census 2021 (ONS); ONS mid-year population estimates; police recorded crime; the English, Welsh and Scottish indices of deprivation; ONS small area income estimates; ONS private rents; DfE, Welsh and Scottish school registers and Ofsted; DfT NaPTAN; ORR estimates of station usage; HM Land Registry Price Paid Data. Contains public sector information licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right.

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