Cyfarthfa
WardWest Merthyr Tydfil. About 7,398 people in 7.1 square kilometres.
Radon Affected Area by ward
Worked out by Open Index · 2022
About 56% of people in Cyfarthfa live in a 1 km square that the radon atlas marks as a radon Affected Area.
How Cyfarthfa compares
Each dot is a ward. The black line marks the middle one.
Is Cyfarthfa safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Cyfarthfa at a rate of 128.8 per 1,000 people.
That compares with 110.6 per 1,000 people across Merthyr Tydfil.
Across Wales as a whole, the recorded crime rate was 96.7 per 1,000 people.
In August 2026 alone, 90 cases of crime and anti-social behaviour were recorded in Cyfarthfa.
In the 12 months to August 2026, the most common types were violence and sexual offences (350), other crime (169) and anti-social behaviour (164).
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 Merthyr Tydfil
These figures are published for the whole of Merthyr Tydfil, not for each ward, so they describe all of Merthyr Tydfil and not Cyfarthfa alone. See Merthyr Tydfil
Cyfarthfa in brief
Cyfarthfa had 7,268 usual residents at the census.
About 56% of people in Cyfarthfa live in a 1 km square that the radon atlas marks as a radon Affected Area.
In Cyfarthfa, 93.0% of homes and businesses could get gigabit-capable broadband in January 2026.
In Cyfarthfa, 2.7% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.