Side-by-side crime statistics from official UK Police data.
CF11 · Cardiff
766
crimes in March 2026
Above national average
CF46 · Merthyr Tydfil
33
crimes in March 2026
Below national average
Treharris has less crime — 33 vs 766 incidents in March 2026.
Grangetown recorded substantially more crime than Treharris in March 2026 — 766 incidents compared to 33, a 23.2x difference. The crime profiles diverge meaningfully: Grangetown sees higher rates of Shoplifting (101) and Anti-social behaviour (83), while Treharris has more Criminal damage & arson (5) and Other theft (4). Grangetown sits above the national average for recorded crime while Treharris is below — a significant gap for anyone weighing up the two.
Full reports cover 24 months of trends, ward breakdowns, outcome rates, and a detailed safety score — from £4.99.
Based on March 2026 Police data, Treharris recorded fewer crimes than Grangetown — 33 vs 766 incidents. That is 96% fewer crimes. Treharris is also below the national average for crime.
The main difference lies in crime type. In March 2026, Grangetown saw higher rates of Shoplifting and Anti-social behaviour while Treharris had more Criminal damage & arson and Other theft. Overall, Treharris recorded fewer total crimes (33 vs 766).