Sunday email
Crime

Crime in Old St Mellons

Old St Mellons had 415 crimes recorded over June to August 2026, about 124.8 per 1,000 residents a year. That ranks it 23rd of 53 Cardiff areas, where 1st is the highest rate, and 14% above the middle Cardiff area. Crime was up 10% on the three months before.

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

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124.8crimes per 1,000 a yearJune to August 2026
23 of 53Cardiff rank1st is the highest rate
+10%on the 3 months beforemore crime
violencemost common144 in 3 months

Month by month

137 Mar 118 Apr 122 May 112 Jun 134 Jul 169 Aug

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

What kind of crime

CrimeIn 3 monthsShare
violence14435%
public order7117%
anti-social behaviour5012%
criminal damage4511%
shoplifting307%
theft215%
burglary133%
drugs113%

Old St Mellons against Cardiff

TypeOld St Mellons per 1,000Middle Cardiff areaChange
Violence43.334▼ 5%
Burglary3.93.1–
Vehicle crime2.75.7▼ 36%
Anti-social behaviour1516▲ 16%
Theft and robbery9.38.1▲ 24%

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%
Trowbridge118.9▲ 24%
St Mellons103.3▲ 21%
Pentwyn98.2▲ 57%
Pontprennau97.6▲ 50%
St Edeyrn's Village85.1▲ 28%
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 Old St Mellons a safe area?

Old St Mellons had about 124.8 crimes per 1,000 residents a year over June to August 2026, ranking 23 of 53 Cardiff areas (1st is the highest rate). The most common crime was violence.

What is the most common crime in Old St Mellons?

Over June to August 2026, the most common was violence (144), followed by public order (71) and anti-social behaviour (50).