Compare

Penarth

Town

Town in Vale of Glamorgan and Cardiff, Wales.

Penarth is an ONS built-up area: the land built up as one town, whatever council it is in. Figures for Penarth add up the census output areas (or, for claimants, the neighbourhoods) that sit mostly inside it, so they are close to, but not exactly, the town’s own.

Open in map

Radon Affected Area by town

Worked out by Open Index · 2022

Under 1%90% or more

About 54% of people in Penarth live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£300,000
Joint 411th most expensive of 1,092
Worked out by Open Index
Population
28,391
389th most populated of 1,209
ONS Census 2021 · 2021
People in radon Affected Area squares
54%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
89.4%
UK 87.8%
Ofcom · Jan 2026

How Penarth compares

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

PenarthMiddle
Median sale price76 towns, Wales · 2025
Median sale price: every town in Wales76 areas from £120,000 to £344,000. The middle area is £194,375. Penarth is £300,000.
£300,000joint 4th most expensive
Population76 towns, Wales · 2021
Population: every town in Wales76 areas from 7,546 to 348,511. The middle area is 13,457. Penarth is 28,391.
28,39117th most populated
People in radon Affected Area squares76 towns, Wales · 2022
People in radon Affected Area squares: every town in Wales76 areas from 2.0% to 100.0%. The middle area is 100.0%. Penarth is 54.0%.
54%joint 11th fewest people in radon Affected Areas
Gigabit broadband coverage76 towns, Wales · Jan 2026
Gigabit broadband coverage: every town in Wales76 areas from 55.2% to 99.0%. The middle area is 93.5%. Penarth is 89.4%.
89.4%joint 19th lowest

Is Penarth safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Penarth at a rate of 59.3 per 1,000 people.

That compares with 96.7 per 1,000 people across Wales.

In August 2026 alone, 158 cases of crime and anti-social behaviour were recorded in Penarth.

In the 12 months to August 2026, the most common types were violence and sexual offences (592), other crime (364) and shoplifting (192).

A year earlier, the recorded crime rate in Penarth was 58.2 per 1,000 people.

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.

Deprivation in Penarth, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so Penarth has no single figure. Of its 19 neighbourhoods with a rank:
  • Decile 5: 1 neighbourhood
  • Decile 7: 3 neighbourhoods
  • Decile 8: 2 neighbourhoods
  • Decile 9: 6 neighbourhoods
  • Decile 10 (Wales’s least deprived 10%): 7 neighbourhoods

Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.

Neighbourhoods in Penarth

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Cardiff 048F1,118No figure9100.0%
Cardiff 048G1,11447.8 per 1,000787.0%
Vale of Glamorgan 004A1,17531.5 per 1,0001099.6%
Vale of Glamorgan 004B1,385104.7 per 1,000795.5%
Vale of Glamorgan 004C1,40751.0 per 1,000898.8%
Vale of Glamorgan 004D1,28418.0 per 1,00010100.0%
Vale of Glamorgan 004E2,090136.3 per 1,000991.5%
Vale of Glamorgan 004F1,65632.2 per 1,000799.2%
Vale of Glamorgan 005A1,93034.0 per 1,0001087.1%
Vale of Glamorgan 005B1,47167.4 per 1,0001091.4%
Vale of Glamorgan 005C1,462135.2 per 1,000989.3%
Vale of Glamorgan 005D1,426131.1 per 1,000993.7%
Vale of Glamorgan 005F1,26620.4 per 1,0001097.9%
Vale of Glamorgan 005G1,55358.4 per 1,000885.7%
Vale of Glamorgan 005H1,06651.0 per 1,000992.9%
Vale of Glamorgan 008A1,57230.1 per 1,0001047.9%
Vale of Glamorgan 008B2,14817.9 per 1,0001094.2%
Vale of Glamorgan 008C1,74374.0 per 1,000569.6%
Vale of Glamorgan 008F1,11159.5 per 1,000972.0%

Your MP

As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

Councils Penarth sits in2

Postcode districts covering Penarth2

Middle areas in Penarth3

Towns near Penarth6

Penarth in brief

Penarth is a town in Vale of Glamorgan and Cardiff, Wales.

About 28,739 people lived in Penarth in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £300,000 in 2025 across 493 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 59.3 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in Penarth was £300,000 in 2025.

Penarth had 28,391 usual residents at the census.

About 54% of people in Penarth live in a 1 km square that the radon atlas marks as a radon Affected Area.

In Penarth, 89.4% of homes and businesses could get gigabit-capable broadband in January 2026.