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Crime

Crime in St Mellons

St Mellons had 411 crimes recorded over June to August 2026, about 103.3 per 1,000 residents a year. That ranks it 30th of 53 Cardiff areas, where 1st is the highest rate, and 5% below the middle Cardiff area. Crime was up 21% on the three months before.

CF3, Cardiff · within 0.6 miles of the middle of St Mellons

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103.3crimes per 1,000 a yearJune to August 2026
30 of 53Cardiff rank1st is the highest rate
+21%on the 3 months beforemore crime
violencemost common168 in 3 months

Month by month

105 Mar 122 Apr 113 May 129 Jun 124 Jul 158 Aug

Crimes recorded within 0.6 miles of the middle of St Mellons. Police figures arrive about two months late.

What kind of crime

CrimeIn 3 monthsShare
violence16841%
public order6315%
anti-social behaviour4812%
criminal damage389%
drugs195%
theft184%
burglary164%
other crime143%

St Mellons against Cardiff

TypeSt Mellons per 1,000Middle Cardiff areaChange
Violence42.234▲ 17%
Burglary43.1–
Vehicle crime35.7▲ 9%
Anti-social behaviour12.116▲ 20%
Theft and robbery58.1▼ 5%

Per 1,000 residents a year. Change compares the last three months with the three before.

Nearby areas

AreaPer 1,000 a yearChange
Llanrumney126.5▲ 14%
Old St Mellons124.8▲ 10%
Rumney121.8▲ 11%
Trowbridge118.9▲ 24%
St Mellons103.3▲ 21%
St Edeyrn's Village85.1▲ 28%
Marshfield19.3▲ 31%
See every Cardiff area ranked on the crime in Cardiff page. Figures come from police.uk; locations are moved slightly on purpose to protect victims.

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Questions people ask

Is St Mellons a safe area?

St Mellons had about 103.3 crimes per 1,000 residents a year over June to August 2026, ranking 30 of 53 Cardiff areas (1st is the highest rate). The most common crime was violence.

What is the most common crime in St Mellons?

Over June to August 2026, the most common was violence (168), followed by public order (63) and anti-social behaviour (48).