Crime in Treharris: statistics, rates and trends
354 crimes were recorded in Treharris in the 12 months to August 2026, 57.0 per 1,000 residents. That is lower than the England and Wales rate of 96.7, and down 7% on the year before.
Table of Contents
- Crime map
- Crime in Treharris at a glance
- Crime trends in Treharris
- Types of crime in Treharris
- Treharris compared with nearby towns
- Areas within Treharris
- Streets with the most crime in Treharris
- What happened after crimes were reported in Treharris
- Demographics of Treharris
- Questions about crime in Treharris
- About this data
Crime map
Violence and sexual offences (134), anti-social behaviour (61) and public order (40) made up 66% of all recorded crime. Its crime rate ranks 1,015th of the 1,390 towns covered by this site (1 = highest), in the lower half.
| Measure | Treharris | Merthyr Tydfil | England and Wales |
|---|---|---|---|
| Crimes, the 12 months to August 2026 | 354 | 6,454 | 5,618,064 |
| Crimes per 1,000 residents | 57.0 | 109.4 | 96.7 |
| Change on previous 12 months | -7% | -1% | -1% |
| Population | 6,206 | 58,972 | 58,127,638 |
Recorded crime in Treharris peaked in the year to August 2019 (484 crimes) and was lowest in the year to August 2022 (351). Between the years to August 2018 and 2026 it fell 11%, while across England and Wales it fell 4%.
| Period | Crimes | Per 1,000 | England and Wales per 1,000 |
|---|---|---|---|
| Year to August 2026 | 354 | 57.0 | 96.7 |
| Year to August 2025 | 382 | 61.6 | 97.2 |
| Year to August 2024 | 435 | 70.1 | 97.9 |
| Year to August 2023 | 452 | 72.8 | n/a |
| Year to August 2022 | 351 | 56.6 | 102.0 |
| Year to August 2021 | 432 | 69.6 | 101.4 |
| Year to August 2020 | 429 | 69.1 | 102.7 |
| Year to August 2019 | 484 | 78.0 | 101.7 |
| Year to August 2018 | 399 | 64.3 | 100.8 |
Month by month
| Month | Crimes |
|---|---|
| August 2026 | 40 |
| July 2026 | 50 |
| June 2026 | 25 |
| May 2026 | 32 |
| April 2026 | 32 |
| March 2026 | 26 |
| February 2026 | 23 |
| January 2026 | 27 |
| December 2025 | 27 |
| November 2025 | 24 |
| October 2025 | 24 |
| September 2025 | 24 |
No category with at least 20 crimes was notably above the England and Wales rate, and violence and sexual offences (37% below) and anti-social behaviour (36% below) were well below it. On the year before, vehicle crime rose from 25 to 30.
| Crime type | Crimes | Per 1,000 | England and Wales per 1,000 | Change on year |
|---|---|---|---|---|
| Violence and sexual offences | 134 | 21.6 | 34.2 | -12% |
| Anti-social behaviour | 61 | 9.8 | 15.4 | +3% |
| Public order | 40 | 6.4 | 6.7 | -7% |
| Criminal damage and arson | 34 | 5.5 | 6.7 | -6% |
| Vehicle crime | 30 | 4.8 | 5.0 | +20% |
| Other theft | 18 | 2.9 | 6.4 | n/a |
| Other crime | 13 | 2.1 | 2.1 | n/a |
| Burglary | 11 | 1.8 | 3.6 | n/a |
| Shoplifting | 8 | 1.3 | 8.5 | n/a |
| Drugs | 2 | 0.3 | 3.3 | n/a |
| Possession of weapons | 2 | 0.3 | 1.0 | n/a |
| Bicycle theft | 1 | 0.2 | 0.8 | n/a |
What each category covers: crime categories.
Every one of the 8 nearest towns has a higher crime rate than Treharris.
| Town | Crimes | Per 1,000 | Rate vs Treharris |
|---|---|---|---|
| Mountain Ash | 1,058 | 88.4 | +55% |
| Ystrad Mynach | 1,274 | 113.6 | +99% |
| Bargod | 993 | 122.6 | +115% |
| Blackwood | 1,692 | 149.4 | +162% |
| Pontypridd | 3,597 | 105.8 | +86% |
| Abertridwr and Senghenydd | 515 | 80.6 | +41% |
| Pontllanfraith | 986 | 97.6 | +71% |
| Porth | 1,273 | 98.7 | +73% |
Treharris is the one area listed within Treharris, with 57.0 crimes per 1,000 residents.
| Area | Type | Population | Crimes | Per 1,000 |
|---|---|---|---|---|
| Treharris | Neighbourhood | 6,206 | 354 | 57.0 |
The 10 locations below account for 40% of the crime recorded in Treharris over the 12 months to August 2026; the most were recorded at “Twynygarreg” (26).
| Location | Crimes |
|---|---|
| On or near Twynygarreg | 26 |
| On or near Pritchard Street | 16 |
| On or near Sports/Recreation Area | 16 |
| On or near Navigation Close | 15 |
| On or near Hilltop Close | 13 |
| On or near Ashgrove | 12 |
| On or near Tram Road Side | 12 |
| On or near Rodericks Terrace | 11 |
| On or near Supermarket | 11 |
| On or near Fir Tree Drive | 10 |
Of the 293 crimes in Treharris with a recorded outcome, 26% ended with the investigation complete and no suspect identified, against 35% across England and Wales; 3.1% were awaiting a court outcome (England and Wales: 5.2%). The 61 anti-social behaviour reports have no outcome and are left out.
| Outcome | Crimes | Share | England and Wales |
|---|---|---|---|
| Unable to prosecute suspect | 115 | 39.2% | 34.5% |
| Investigation complete; no suspect identified | 75 | 25.6% | 35.3% |
| Under investigation | 60 | 20.5% | 11.5% |
| Status update unavailable | 15 | 5.1% | 4.7% |
| Awaiting court outcome | 9 | 3.1% | 5.2% |
| Local resolution | 8 | 2.7% | 3.1% |
| Court result unavailable | 4 | 1.4% | 2.5% |
| Further investigation is not in the public interest | 3 | 1.0% | 0.5% |
| Formal action is not in the public interest | 2 | 0.7% | 0.3% |
| Action to be taken by another organisation | 1 | 0.3% | 1.3% |
| Further action is not in the public interest | 1 | 0.3% | 0.3% |
Treharris has an estimated population of 6,206 (ONS, mid-2024). Compared with England and Wales it has less social housing (12%, against 17%), more residents with no qualifications (24%, against 18%) and fewer students (5.8%, against 7.9%). On the Wales WIMD 2025, the small areas (LSOAs) that make up Treharris average decile 5.5 (1 = most deprived), close to the middle.
| Measure | Treharris | England and Wales |
|---|---|---|
| Aged 0 to 15 | 16.9% | 18.3% |
| Aged 65 and over | 22.0% | 18.9% |
| Residents 16+ in work | 54.7% | 57.2% |
| Residents 16+ unemployed | 2.7% | 3.4% |
| Residents 16+ retired | 24.6% | 21.6% |
| Residents 16+ who are students | 5.8% | 7.9% |
| Residents 16+ with Level 4 qualifications or above (degree, HND and similar) | 25.7% | 33.8% |
| Residents 16+ with no qualifications | 23.8% | 18.2% |
| Households with no car or van | 17.5% | 23.3% |
| Homes owned outright or with a mortgage | 73.4% | 62.5% |
| Social rented homes | 11.7% | 17.1% |
| Private rented homes | 14.9% | 20.3% |
| Average deprivation decile (1 = most deprived, 10 = least) | 5.5 | 5.5 (Wales) |
Is Treharris a safe place to live?
Treharris recorded 57.0 crimes per 1,000 residents in the 12 months to August 2026, lower than the England and Wales rate of 96.7, and ranks 1,015th of the 1,390 towns on this site by crime rate (1 = highest).
What is the most common crime in Treharris?
Violence and sexual offences was the most common category, with 134 reports in the 12 months to August 2026, followed by anti-social behaviour (61).
Is crime in Treharris going up or down?
Recorded crime in Treharris was down 7% on the year before: 354 crimes in the 12 months to August 2026 against 382 in the previous 12 months.
What is the population of Treharris?
About 6,206 people (ONS mid-2024 estimate), 22% of them aged 65 or over (England and Wales: 19%).
Which police force covers Treharris?
Treharris is policed by South Wales.
Police-recorded crime from data.police.uk (September 2017 to August 2026), ONS population estimates and Census 2021. Definitions and limitations: methodology.