Lisvane and Thornhill
WardNorth Cardiff. About 11,437 people (mid-2024 estimate) in 9.4 square kilometres.
Radon Affected Area by ward
Worked out by Open Index · 2022
About 100% of people in Lisvane and Thornhill live in a 1 km square that the radon atlas marks as a radon Affected Area.
How Lisvane and Thornhill compares
Each dot is a ward. The black line marks the middle one.
Is Lisvane and Thornhill safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Lisvane and Thornhill at a rate of 26.1 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, 26 cases of crime and anti-social behaviour were recorded in Lisvane and Thornhill.
In the 12 months to August 2026, the most common types were violence and sexual offences (100), other crime (63) and anti-social behaviour (43).
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 Lisvane and Thornhill alone. See Cardiff
Lisvane and Thornhill in brief
Lisvane and Thornhill had 10,472 usual residents at the census.
About 100% of people in Lisvane and Thornhill live in a 1 km square that the radon atlas marks as a radon Affected Area.
In Lisvane and Thornhill, 96.7% of homes and businesses could get gigabit-capable broadband in January 2026.
In Lisvane and Thornhill, 1.6% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.