Lowest-crime areas in Merthyr Tydfil
Of Merthyr Tydfil's 7 neighbourhoods, Treharris & Trelewis recorded the lowest crime rate, 57 crimes per 1,000 residents a year, and Gelli-deg & Town the highest, 312 crimes per 1,000 residents. 5 of 7 are below the England and Wales rate of 97 crimes per 1,000 residents. Figures cover October 2025 to September 2026.
Merthyr Tydfil neighbourhoods by crime rate
| # | Neighbourhood | Crimes per 1,000 | Compared with England and Wales | Most common |
|---|---|---|---|---|
| 1 | Treharris & Trelewisaround CF46 5AQ | 57 | Moderate | Violence and sexual offences |
| 2 | Cefncoedycymer, Heolgerrig & Parkaround CF48 1LG | 64 | Moderate | Violence and sexual offences |
| 3 | Pentre-bach & Mountain Harearound CF47 0TF | 66 | Moderate | Violence and sexual offences |
| 4 | Merthyr Vale, Troed-y-rhiw & Bedlinogaround CF48 4QA | 87 | Moderate | Violence and sexual offences |
| 5 | Dowlaisaround CF48 3AU | 94 | High | Violence and sexual offences |
| 6 | Gurnos, Trefechan & Pontsticillaround CF47 9SD | 127 | Very high | Violence and sexual offences |
| 7 | Gelli-deg & Townaround CF48 1DR | 312 | Very high | Violence and sexual offences |
Source: data.police.uk, October 2025 to September 2026, and ONS population estimates. Rates are per 1,000 residents, so town and city centres, with many visitors and few residents, rank high.
Questions
Which area of Merthyr Tydfil has the lowest crime rate?
Treharris & Trelewis had the lowest recorded crime rate in Merthyr Tydfil from October 2025 to September 2026: 57 crimes per 1,000 residents a year, against 97 crimes per 1,000 residents across England and Wales.
Which area of Merthyr Tydfil has the highest crime rate?
Gelli-deg & Town had the highest recorded crime rate in Merthyr Tydfil from October 2025 to September 2026: 312 crimes per 1,000 residents a year. Busy centres often rank high because rates are per resident, not per visitor.
How is the crime rate worked out?
Crimes reported to police and published on data.police.uk over the last 12 months, divided by each neighbourhood's population from ONS estimates. Neighbourhoods are the ONS areas of about 7,000 people that the House of Commons Library has named.