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Rumney

Ward

North east Cardiff. About 9,378 people (mid-2024 estimate) in 4.0 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 Rumney live in a 1 km square that the radon atlas marks as a radon Affected Area.

Population
8,789
Joint 3,012th 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
97.5%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
4.0%
UK 3.9%
ONS via Nomis · Aug 2026

How Rumney compares

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

RumneyMiddle
Population28 wards, Cardiff · 2021
Population: every ward in Cardiff28 areas from 7,094 to 21,823. The middle area is 11,920. Rumney is 8,789.
8,7894th least 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%. Rumney is 100.0%.
100%joint most 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%. Rumney is 97.5%.
97.5%6th 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%. Rumney is 4.0%.
4.0%14th highest

Is Rumney safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Rumney at a rate of 68.0 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, 83 cases of crime and anti-social behaviour were recorded in Rumney.

In the 12 months to August 2026, the most common types were violence and sexual offences (241), other crime (119) and vehicle crime (87).

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 Rumney alone. See Cardiff

Average house price
£272,252
Up 2.7% in a year
HM Land Registry · Jul 2026
Median full-time pay
£36,946
121st lowest paid of 348
ONS earnings survey · 2025
House price to pay
7.4×
Joint 167th least affordable of 348
Worked out by Open Index
Population estimate
381,516
Down 0.1% in a year
ONS population estimates · 2025
Rumney in brief

Rumney had 8,789 usual residents at the census.

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

In Rumney, 97.5% of homes and businesses could get gigabit-capable broadband in January 2026.

In Rumney, 4.0% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.