Total Crime Rate
46.4 per 1,000
All offences · May 2025 - Apr 2026Violent Crime Rate
34.1 per 1,000
May 2025 - Apr 2026Dinorwic Terrace area has the 17th lowest crime rate of 47 local areas in Arllechwedd , and the 154th lowest crime rate of 395 local areas in Gwynedd .
This postcode forms a relatively safe pocket compared with the surrounding streets. Neighbouring areas record much higher crime levels, even though this postcode itself remains comparatively low-crime.
The overall crime rate in the area around Dinorwic Terrace (LL55 3DN) in the last 12 months was 46.4 per 1,000 residents and was 38.4% lower than the Arllechwedd average (75.5 per 1,000 residents). In the last 12 months, this area’s most reported crimes were Violence and sexual offences with 10 offences recorded. The least common crime was Criminal damage and arson with 1 case , down -50.0% compared to 2025. The fastest-growing crime category was Violence and sexual offences ( 150.0% YoY). The sharpest decline was Criminal damage and arson ( -50.0% YoY).
Violent crimes totalled 11 (≈ 34.1 per 1,000 residents). Year-over-year these were rising ( 120.0% ). Over the last decade, overall crime has falling ( -76.9% comparing early vs recent averages) .
In the area around Dinorwic Terrace (LL55 3DN), the highest concentration of overall crime is near Pentre Helen, where police recorded 19 incidents. Violent and public-order offences occur most often near Maes Gwylfa (9 offences). Both locations lie within roughly 0.3 miles of this postcode area.
View Crime In Deiniolen| Month | Crime | Location* | Last Outcome |
|---|---|---|---|
| Apr 2026 | Violence and sexual offences | Maes Gwylfa | Under investigation |
| Apr 2026 | Other theft | Pentre Helen | Under investigation |
StreetScan crime figures are based on official UK open data:
Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright and database right.