Total Crime Rate

103.3 per 1,000 8/10 · High

All offences · May 2025 - Apr 2026

Violent Crime Rate

53.3 per 1,000 8/10 · High

May 2025 - Apr 2026
Latest update: 06.06.2026 Crime figures are sourced from data.police.uk and are typically published with a 3-month delay.
Crime rate per 1000 residents
  • All crimes 103.3 8/10
  • Violent crimes 53.3 8/10
  • Violence and sexual offences 43.3 8/10
  • Anti-social behaviour 23.3 8/10
  • Vehicle crime 16.7 9/10
  • Public order 10.0 7/10
  • Other crime 6.7 8/10
  • Other theft 3.3 3/10
  • Bicycle theft 0.0 1/10
  • Burglary 0.0 1/10
  • Criminal damage and arson 0.0 1/10
  • Drugs 0.0 1/10
  • Possession of weapons 0.0 1/10
  • Robbery 0.0 1/10
  • Shoplifting 0.0 1/10
  • Theft from the person 0.0 1/10
Values shown per 1,000 residents · May 2025 - Apr 2026 · Rating compares this oa to UK peers of the same type.
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Crime overview

St Marks Houses area has the 13th highest crime rate of 30 local areas in Llwyn-y-pia , and the 236th highest crime rate of 791 local areas in Rhondda Cynon Taf .

Neighbouring streets tend to have noticeably higher crime levels than this postcode. Crime here is lower than the average for the surrounding output areas.

The overall crime rate in the area around St Marks Houses (CF41 7TA) in the last 12 months was 103.3 per 1,000 residents and was 19.9% lower than the Llwyn-y-pia average (129.0 per 1,000 residents). In the last 12 months, this area’s most reported crimes were Violence and sexual offences with 13 offences recorded. The least common crime was Other theft with 1 case , unchanged from 2025. The fastest-growing crime category was Other crime ( 100.0% YoY). Other major crime categories were broadly unchanged compared to 2025.

Violent crimes totalled 16 (≈ 53.3 per 1,000 residents). Year-over-year these were flat ( 0.0% ). Over the last decade, overall crime has falling ( -72.2% comparing early vs recent averages) .

In the area around St Marks Houses (CF41 7TA), the highest concentration of overall crime is near Tyisaf Road, where police recorded 12 incidents. Violent and public-order offences occur most often near B4223 (8 offences). Both locations lie within roughly 0.3 miles of this postcode area.

View Crime In Ystrad

Crime Over Time in St Marks Houses area

MonthCrimeLocation*Last Outcome
Apr 2026Violence and sexual offences Meadow Walk Under investigation
Apr 2026Public order Princess Street Unable to prosecute suspect
Apr 2026Violence and sexual offences Rees Street Unable to prosecute suspect
Apr 2026Violence and sexual offences Green Hill Under investigation
Apr 2026Other crime Tyisaf Road Under investigation
Apr 2026Other crime Tyisaf Road Unable to prosecute suspect
Apr 2026Other crime Ynysgau Street Under investigation

Data Sources

StreetScan crime figures are based on official UK open data:

Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright and database right.