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Whitchurch and Tongwynlais

Ward

North Cardiff. About 16,187 people (mid-2024 estimate) in 8.7 square kilometres.

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Radon Affected Area by ward

Worked out by Open Index · 2022

Under 1%90% or more

About 64% of people in Whitchurch and Tongwynlais live in a 1 km square that the radon atlas marks as a radon Affected Area.

Population
15,807
Joint 630th most populated of 8,397
ONS Census 2021 · 2021
People in radon Affected Area squares
64%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
96.4%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
2.3%
UK 3.9%
ONS via Nomis · Aug 2026

How Whitchurch and Tongwynlais compares

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

Whitchurch and TongwynlaisMiddle
Population28 wards, Cardiff · 2021
Population: every ward in Cardiff28 areas from 7,094 to 21,823. The middle area is 11,920. Whitchurch and Tongwynlais is 15,807.
15,8077th most populated
People in radon Affected Area squares28 wards, Cardiff · 2022
People in radon Affected Area squares: every ward in Cardiff28 areas from 0.0% to 100.0%. The middle area is 82.0%. Whitchurch and Tongwynlais is 64.0%.
64%11th fewest people in radon Affected Areas
Gigabit broadband coverage28 wards, Cardiff · Jan 2026
Gigabit broadband coverage: every ward in Cardiff28 areas from 80.7% to 99.6%. The middle area is 96.3%. Whitchurch and Tongwynlais is 96.4%.
96.4%13th highest
Claimant rate28 wards, Cardiff · Aug 2026
Claimant rate: every ward in Cardiff28 areas from 1.2% to 6.9%. The middle area is 3.6%. Whitchurch and Tongwynlais is 2.3%.
2.3%10th lowest

Is Whitchurch and Tongwynlais safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Whitchurch and Tongwynlais at a rate of 72.3 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, 113 cases of crime and anti-social behaviour were recorded in Whitchurch and Tongwynlais.

In the 12 months to August 2026, the most common types were violence and sexual offences (377), other crime (224) and anti-social behaviour (176).

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 Whitchurch and Tongwynlais 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
Whitchurch and Tongwynlais in brief

Whitchurch and Tongwynlais had 15,807 usual residents at the census.

About 64% of people in Whitchurch and Tongwynlais live in a 1 km square that the radon atlas marks as a radon Affected Area.

In Whitchurch and Tongwynlais, 96.4% of homes and businesses could get gigabit-capable broadband in January 2026.

In Whitchurch and Tongwynlais, 2.3% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.