Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle
Middle areaNorth west Gwynedd. 7,762 people (mid-2024 estimate) in 119 square kilometres.
Radon Affected Area by middle area
Worked out by Open Index · 2022
About 96% of people in Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle live in a 1 km square that the radon atlas marks as a radon Affected Area.
Recorded crime in Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle at a rate of 58.2 per 1,000 people.
That compares with 88.8 per 1,000 people across Gwynedd.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
| Kind of crime | Recorded |
|---|---|
| Violence and sexual offences | 201 |
| Anti-social behaviour | 112 |
| Other crime | 64 |
| Criminal damage and arson | 48 |
| Burglary | 9 |
| Shoplifting | 7 |
| Drug offences | 5 |
| Vehicle crime | 5 |
| Robbery | 1 |
| Theft from the person | 0 |
Source: police.uk, 12 months to August 2026
How Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle compares
Each dot is a middle area. The black line marks the middle one.
Is Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle at a rate of 58.2 per 1,000 people.
That compares with 88.8 per 1,000 people across Gwynedd.
Across Wales as a whole, the recorded crime rate was 96.7 per 1,000 people.
In August 2026 alone, 55 cases of crime and anti-social behaviour were recorded in Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle.
In the 12 months to August 2026, the most common types were violence and sexual offences (201), anti-social behaviour (112) and other crime (64).
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 Gwynedd
These figures are published for the whole of Gwynedd, not for each middle area, so they describe all of Gwynedd and not Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle alone. See Gwynedd
Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle in brief
The median price paid for a home in Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle was £155,000 in 2025.
Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle had 7,576 usual residents at the census.
About 96% of people in Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle live in a 1 km square that the radon atlas marks as a radon Affected Area.
In Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle, 91.3% of homes and businesses could get gigabit-capable broadband in January 2026.