Compare

St Cattwg

Ward

West Caerphilly. About 7,335 people (mid-2024 estimate) in 12 square kilometres.

Open in map

Radon Affected Area by ward

Worked out by Open Index · 2022

Under 1%90% or more

About 100% of people in St Cattwg live in a 1 km square that the radon atlas marks as a radon Affected Area.

Population
7,494
3,705th most populated of 8,397
ONS Census 2021 · 2021
People in radon Affected Area squares
100%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
44.3%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
3.2%
UK 3.9%
ONS via Nomis · Aug 2026

How St Cattwg compares

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

St CattwgMiddle
Population31 wards, Caerphilly · 2021
Population: every ward in Caerphilly31 areas from 1,997 to 12,217. The middle area is 5,486. St Cattwg is 7,494.
7,4946th most populated
People in radon Affected Area squares31 wards, Caerphilly · 2022
People in radon Affected Area squares: every ward in Caerphilly31 areas from 0.0% to 100.0%. The middle area is 95.0%. St Cattwg is 100.0%.
100%joint most people in radon Affected Areas
Gigabit broadband coverage31 wards, Caerphilly · Jan 2026
Gigabit broadband coverage: every ward in Caerphilly31 areas from 42.6% to 98.8%. The middle area is 93.3%. St Cattwg is 44.3%.
44.3%2nd lowest
Claimant rate31 wards, Caerphilly · Aug 2026
Claimant rate: every ward in Caerphilly31 areas from 1.8% to 5.6%. The middle area is 3.5%. St Cattwg is 3.2%.
3.2%joint 11th lowest

Is St Cattwg safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in St Cattwg at a rate of 82.5 per 1,000 people.

That compares with 107.3 per 1,000 people across Caerphilly.

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

In August 2026 alone, 56 cases of crime and anti-social behaviour were recorded in St Cattwg.

In the 12 months to August 2026, the most common types were violence and sexual offences (259), other crime (104) and anti-social behaviour (94).

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 Caerphilly

These figures are published for the whole of Caerphilly, not for each ward, so they describe all of Caerphilly and not St Cattwg alone. See Caerphilly

Average house price
£197,542
Up 4.2% in a year
HM Land Registry · Jul 2026
Median full-time pay
£35,367
78th lowest paid of 348
ONS earnings survey · 2025
House price to pay
5.6×
Joint 65th most affordable of 348
Worked out by Open Index
Population estimate
176,078
Down 0.1% in a year
ONS population estimates · 2025
St Cattwg in brief

St Cattwg had 7,494 usual residents at the census.

About 100% of people in St Cattwg live in a 1 km square that the radon atlas marks as a radon Affected Area.

In St Cattwg, 44.3% of homes and businesses could get gigabit-capable broadband in January 2026.

In St Cattwg, 3.2% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.