Crime Rates at Arnold Avenue, Llanrumney, Cardiff, CF3 5PP

Arnold Avenue area has the 6th lowest crime rate of 61 local areas in Llanrumney , and the 200th lowest crime rate of 1,013 local areas in Cardiff .

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 Arnold Avenue (CF3 5PP) in the last 12 months was 22.9 per 1,000 residents and was 79.2% lower than the Llanrumney average (109.9 per 1,000 residents). In the last 12 months, this area’s most reported crimes were Violence and sexual offences with 6 offences recorded. The least common crime was Criminal damage and arson with 1 case , unchanged from 2025. The fastest-growing crime category was Violence and sexual offences ( 20.0% YoY). Other major crime categories were broadly unchanged compared to 2025.

Violent crimes totalled 6 (≈ 19.6 per 1,000 residents). Year-over-year these were rising ( 20.0% ). Over the last decade, overall crime has falling ( -86.3% comparing early vs recent averages) .

In the area around Arnold Avenue (CF3 5PP), the main crime hotspot is near Hazlitt Close. Police recorded 31 crimes here, including 28 violent or public-order offences. All these locations are within roughly 0.3 miles.