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Pwll-mawr & St Mellons East

Middle area

North east Cardiff. 8,307 people (mid-2024 estimate) in 7.7 square kilometres.

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Radon Affected Area by middle area

Worked out by Open Index · 2022

Under 1%90% or more

About 78% of people in Pwll-mawr & St Mellons East live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£235,500
Joint 2,362nd cheapest of 7,259
Worked out by Open Index
Population
7,784
3,914th most populated of 9,448
ONS Census 2021 · 2021
People in radon Affected Area squares
78%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
91.1%
UK 87.8%
Ofcom · Jan 2026

Recorded crime in Pwll-mawr & St Mellons East

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Pwll-mawr & St Mellons East at a rate of 66.1 per 1,000 people.

That compares with 112.2 per 1,000 people across Cardiff.

Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.

Recorded by police, 12 months to August 2026
Kind of crimeRecorded
Violence and sexual offences186
Other crime133
Anti-social behaviour76
Criminal damage and arson60
Shoplifting42
Vehicle crime22
Burglary14
Drug offences13
Robbery3
Theft from the person0

Source: police.uk, 12 months to August 2026

How Pwll-mawr & St Mellons East compares

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

Pwll-mawr & St Mellons EastMiddle
Median sale price48 middle areas, Cardiff · 2025
Median sale price: every middle area in Cardiff48 areas from £160,000 to £557,500. The middle area is £269,000. Pwll-mawr & St Mellons East is £235,500.
£235,500joint 16th cheapest
Population48 middle areas, Cardiff · 2021
Population: every middle area in Cardiff48 areas from 5,697 to 12,253. The middle area is 7,156. Pwll-mawr & St Mellons East is 7,784.
7,78417th most populated
People in radon Affected Area squares48 middle areas, Cardiff · 2022
People in radon Affected Area squares: every middle area in Cardiff48 areas from 0.0% to 100.0%. The middle area is 78.5%. Pwll-mawr & St Mellons East is 78.0%.
78%24th fewest people in radon Affected Areas
Gigabit broadband coverage48 middle areas, Cardiff · Jan 2026
Gigabit broadband coverage: every middle area in Cardiff48 areas from 77.2% to 100.0%. The middle area is 97.0%. Pwll-mawr & St Mellons East is 91.1%.
91.1%6th lowest

Is Pwll-mawr & St Mellons East safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Pwll-mawr & St Mellons East at a rate of 66.1 per 1,000 people.

That compares with 112.2 per 1,000 people across Cardiff.

Across Wales as a whole, the recorded crime rate was 96.7 per 1,000 people.

In August 2026 alone, 54 cases of crime and anti-social behaviour were recorded in Pwll-mawr & St Mellons East.

In the 12 months to August 2026, the most common types were violence and sexual offences (186), other crime (133) and anti-social behaviour (76).

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.

Figures for the whole of Cardiff

These figures are published for the whole of Cardiff, not for each middle area, so they describe all of Cardiff and not Pwll-mawr & St Mellons East alone. See Cardiff

Average house price
£272,443
Up 2.1% in a year
HM Land Registry · Aug 2026
Median full-time pay
£36,946
121st lowest paid of 348
ONS earnings survey · 2025
House price to pay
7.4×
Joint 168th least affordable of 348
Worked out by Open Index
Population estimate
381,516
Down 0.1% in a year
ONS population estimates · 2025
Pwll-mawr & St Mellons East in brief

The median price paid for a home in Pwll-mawr & St Mellons East was £235,500 in 2025.

Pwll-mawr & St Mellons East had 7,784 usual residents at the census.

About 78% of people in Pwll-mawr & St Mellons East live in a 1 km square that the radon atlas marks as a radon Affected Area.

In Pwll-mawr & St Mellons East, 91.1% of homes and businesses could get gigabit-capable broadband in January 2026.