Photo: Dot Potter · CC BY-SA 2.0Mostyn has no Safety Grade
From September 2023 to August 2026, police recorded crimes inside Mostyn’s built-up area; the town has no Safety Grade. The town falls under the 1,000-resident floor for a Safety Grade, where a few incidents would move its rate a long way. Year on year, 86.6 violent and sexual offences and 22.5 incidents of burglary, vehicle crime and damage occur per 1,000 residents. Recorded violence held steady in a year.
Crimes and reports per 1,000 residents (Census 2021) a year, September 2023 to August 2026.
What police recorded in the last 12 months
Against the typical town its size, Mostyn runs highest on public order (15.7 per 1,000 against 2.4), anti-social behaviour (32.6 per 1,000 against 5.3) and criminal damage & arson (16.9 per 1,000 against 3.2).
Show as a table
| Category | In the grade | Reports | Per 1,000 | Typical |
|---|---|---|---|---|
| Violence & sexual offences | Violent | 77 | 86.6 | 16.6 |
| Anti-social behaviour | not graded | 29 | 32.6 | 5.3 |
| Criminal damage & arson | Home & vehicle | 15 | 16.9 | 3.2 |
| Public order | not graded | 14 | 15.7 | 2.4 |
| Other theft | not graded | 4 | 4.5 | 2.5 |
| Burglary | Home & vehicle | 3 | 3.4 | 1.6 |
| Other crime | not graded | 2 | 2.2 | 1.1 |
| Vehicle crime | Home & vehicle | 1 | 1.1 | 1.5 |
| Possession of weapons | Violent | 1 | 1.1 | 0 |
| Robbery | Violent | 1 | 1.1 | 0 |
| Shoplifting | not graded | 0 | 0 | 0 |
| Drugs | not graded | 0 | 0 | 0.6 |
| Bicycle theft | not graded | 0 | 0 | 0 |
| Theft from the person | not graded | 0 | 0 | 0 |
“Violent” is police.uk’s violence and sexual offences (which includes harassment, stalking and assault without injury), robbery and possession of weapons. Anti-social behaviour isn’t a crime category; shoplifting and other theft happen mostly in shops and town centres rather than to residents, so neither counts in the grade.
September 2025 to August 2026, per 1,000 residents. The tick on each bar is the typical (median) town among UK towns of 1,000 to 2,500 people.
How crime in Mostyn has moved
“Towns its size” pools all UK towns of 1,000 to 2,500 people that police.uk covers each month (Greater Manchester has no data).
Rolling twelve-month rate, per 1,000 residents a year (longer windows for smaller places, where a few crimes swing a month). In the 12 months to August 2026 against the 12 before: violent -2% (towns its size +3%), anti-social behaviour +45% (towns its size -1%).
Crime in Mostyn per 1,000 residents
A crime isn’t a victim: one person can report several, and crimes in a town centre often involve visitors rather than residents.
And about 21 burglaries, vehicle crimes or acts of criminal damage, plus 4 shoplifting and theft reports, in the 12 months to August 2026. Each dot is one resident; each coloured dot is one recorded crime.
Crime in the places around Mostyn
| Town | People | Violent | Homes & vehicles | Safety |
|---|---|---|---|---|
| Mostyn | 889 | 86.6 | 22.5 | — |
| Holywell | 7,741 | 52.1 | 21.2 | D |
| Bagillt | 5,943 | 39.3 | 12.7 | C− |
| Pentre Halkyn | 1,082 | 21 | 7.1 | B |
| Caldy | 1,227 | 10.9 | 3.5 | A |
| West Kirby | 13,383 | 17.1 | 7.1 | B+ |
| Flint | 12,776 | 40 | 13.5 | C− |
| Meliden | 2,002 | 38.5 | 8.2 | C |
Mostyn records more graded crime per resident than every neighbour in the table. Holywell, 2.5 miles away, records 52.1 violent and sexual offences per 1,000 residents a year (3-year average), against Mostyn’s 86.6.
Per 1,000 residents a year, the same three years. Tap a town for its safety page.
What this data can and can’t tell you
- Where crimes happen, not where victims live. police.uk places each crime at a point near where it happened. Town centres with shops, stations, a hospital and nightlife record more crime per resident, and residents of nearby villages who come in to shop or go out are part of that count.
- Bigger towns record more per resident. Across UK towns, recorded crime per resident rises steeply with size, more than in the U.S., so a city’s grade sits low against the whole UK. The “towns its size” figures show where Mostyn sits among towns like it; they are context and don’t change the grade.
- Points are approximate. police.uk moves each point to the nearest of a set of anonymous map points, so crimes near the edge of the built-up area can fall either side of it.
Questions about safety in Mostyn
Is Mostyn safe?
Police recorded 86.6 violent and sexual offences and 22.5 burglaries, vehicle crimes and acts of criminal damage per 1,000 residents a year over the three years to August 2026 (police.uk, inside Mostyn’s built-up area).
Is crime going up in Mostyn?
In the 12 months to August 2026, against the 12 months before, violent crime held steady, burglary, vehicle crime and damage rose 27%, shoplifting and theft held steady and anti-social behaviour rose 45%. Across UK towns of 1,000 to 2,500 people, violent crime held steady.
What is the most common crime in Mostyn?
Violence & sexual offences: 77 in the 12 months to August 2026, which in police.uk includes harassment, stalking and assault without injury. Next came criminal damage & arson (15) and public order (14), with 29 reports of anti-social behaviour.
How does Mostyn compare with Birkenhead?
Birkenhead records 50.1 violent and sexual offences and 17.2 crimes against homes and vehicles per 1,000 residents a year, against Mostyn’s 86.6 and 22.5, over the same three years.
Sources: data.police.uk street-level crime, 36 months to August 2026, points inside the built-up-area boundary · ONS Census 2021, output areas summed to the ONS 2022 built-up area · Welsh Government Welsh Index of Multiple Deprivation 2025, community safety domain by LSOA · TownRatings grades: our own summary of the data, ranked against UK towns only. All under the Open Government Licence v3.0.
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.