Plasnewydd
WardNorth east Cardiff. About 20,068 people in 1.6 square kilometres.
Radon Affected Area by ward
Worked out by Open Index · 2022
About 25% of people in Plasnewydd live in a 1 km square that the radon atlas marks as a radon Affected Area.
How Plasnewydd compares
Each dot is a ward. The black line marks the middle one.
Is Plasnewydd safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Plasnewydd at a rate of 117.0 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, 236 cases of crime and anti-social behaviour were recorded in Plasnewydd.
In the 12 months to August 2026, the most common types were violence and sexual offences (697), other crime (472) and shoplifting (282).
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 ward, so they describe all of Cardiff and not Plasnewydd alone. See Cardiff
Plasnewydd in brief
Plasnewydd had 18,270 usual residents at the census.
About 25% of people in Plasnewydd live in a 1 km square that the radon atlas marks as a radon Affected Area.
In Plasnewydd, 97.4% of homes and businesses could get gigabit-capable broadband in January 2026.
In Plasnewydd, 4.1% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.