Crime Rates at Mariner Street, Swansea, SA1 5BA

Mariner Street area has the 25th highest crime rate of 124 local areas in Castle , and the 63rd highest crime rate of 783 local areas in Swansea .

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 Mariner Street (SA1 5BA) in the last 12 months was 205.2 per 1,000 residents and was 46.2% lower than the Castle average (381.2 per 1,000 residents). In the last 12 months, this area’s most reported crimes were Violence and sexual offences with 42 offences recorded. The least common crime was Bicycle theft with 1 case , up 100.0% compared to 2025. The fastest-growing crime category was Burglary ( 300.0% YoY). The sharpest decline was Vehicle crime ( -16.7% YoY).

Violent crimes totalled 73 (≈ 94.8 per 1,000 residents). Year-over-year these were rising ( 10.6% ). Over the last decade, overall crime has falling ( -61.3% comparing early vs recent averages) .

In the area around Mariner Street (SA1 5BA), the highest concentration of overall crime is near Parking Area, where police recorded 211 incidents. Violent and public-order offences occur most often near Welcome Lane (66 offences). Both locations lie within roughly 0.3 miles of this postcode area.