Road risk in Isles of Scilly
The official road casualty record for Isles of Scilly, from DfT STATS19.
Police recorded 2 injury collisions in Isles of Scilly in 2025, hurting 2 people, of whom 0 were killed or seriously injured.
Not ranked. Isles of Scilly is held out of our national tablebecause it recorded 0 killed or seriously injured, below the 20 needed for the derived percentages to mean anything and its recorded vehicle mileage is too low for a stable per-mile rate. Every figure here is the real recorded number. At this size the derived percentages describe chance more than they describe the place, so there is no rank attached to them. How the floors work.
- Collisions
- 2 in 2025
- People hurt
- 2 casualties
- Killed or seriously injured
- 0
- Killed
- 0
- KSI per billion vehicle miles
- 714.3 (median 80.5)
- KSI, three-year average
- 1 a year
- Severity-adjusted KSI, three-year average
- 1 a year (recorded: 1)
- Population
- 2,299
Compiled by Stephen Hall, Data lead, Swift Assist. Source: DfT STATS19 and DfT road traffic estimates (2025), OGL v3. Updated 2026-10-08.
Five years of collisions in Isles of Scilly
Isles of Scilly has no comparable five-year change: it did not exist as an authority for the whole period, so there is no earlier figure to measure against. The yearly counts below are real; what is missing is the comparison, and the trend component is left out of its score rather than assumed to be flat.
Collisions per year in Isles of Scilly
2025: 2 (down 0% on the year before) · peak 3 in 2023 · no full-period comparison, the series does not start above zero
Axis clipped to the data range to show year-on-year movement.
Vehicle crime · year ending June 2026
Vehicle crime in Isles of Scilly
0.83
offences per 1,000 residents
2
offences recorded, 12 months
283
of 287 areas, worst first
Isles of Scilly recorded 0.83 vehicle offences per 1,000 residents, below the England and Wales rate of 5.04.
Rate calculated from 2 offences and a population of 2,400 (ONS mid-2024), both taken from the same ONS release. Contains public sector information licensed under the Open Government Licence v3.0. Source: Office for National Statistics, Crime in England and Wales: Police Force Area data tables, year ending June 2026; police recorded crime collected by the Home Office.
Pedestrians, cyclists and riders in Isles of Scilly
These are the road users with the least protection when something goes wrong, and they carry a disproportionate share of the serious injuries. Across 2 collisions in Isles of Scilly, the three groups appear 2 times between them — an involvement rate of 100%.
| Road user | Collisions | Share of all collisions |
|---|---|---|
| Pedestrians | 0 | 0.0% |
| Cyclists | 1 | 50.0% |
| Motorcyclists | 1 | 50.0% |
A single collision can involve more than one of these groups and is then counted in each row, so the rows do not add up to a share of the total.
When collisions happen in Isles of Scilly
DfT records the light level and road surface at every collision, but publishes neither below national level. These are Isles of Scilly’s own shares over 7 collisions, with the national figure beside each one for comparison.
| Share of collisions | Isles of Scilly | National | How it reads |
|---|---|---|---|
| In darknessAny collision where the officer recorded darkness, lit or unlit. | 28.6% | 28.7% | close to the national figure |
| In darkness, no street lightingThe rural lighting picture rather than the urban speeding one. | 28.6% | 6.3% | more than three times the national figure |
| On a wet road surfaceWet, damp or standing water at the scene. | 28.6% | 24.5% | above the national figure |
| On snow or iceRare everywhere, and concentrated in a handful of authorities. | 0% | 1.4% | a small fraction of the national figure |
What this does not tell you
- A share is not a rate. A high darkness share means darkness accounts for more of Isles of Scilly’s collisions — not that its roads are more dangerous overall. Read it alongside the casualties-per-mile-driven figure above.
- Condition is recorded, not tested. The officer records the surface and light level at the scene. It is an observation, not a measurement, and it is not a finding that the condition caused the collision.
- Exposure is not controlled for. Fewer people travel at 3am than at 3pm, so a collision in darkness is drawn from a smaller pool of journeys. Without hourly traffic counts, these shares describe when collisions happen rather than how risky an hour is.
Every authority compared on the same measures: winter road risk across Britain.
Road risk in Isles of Scilly, answered
How dangerous are the roads in Isles of Scilly?
In the latest official DfT figures, 2 road collisions in Isles of Scilly injured or killed 2 people, 0 of them killed or seriously injured. Isles of Scilly is not ranked in our national table because it recorded 0 killed or seriously injured, below the 20 needed for the derived percentages to mean anything and its recorded vehicle mileage is too low for a stable per-mile rate.
Are road casualties in Isles of Scilly rising or falling?
Isles of Scilly has no comparable five-year trend: it did not exist for the whole period, so there is no earlier figure to measure against. Its collision counts for the years it has existed are on this page, and the trend component is excluded from its score rather than assumed to be flat.
Who is being hurt on Isles of Scilly's roads?
In Isles of Scilly there were 0 collisions involving pedestrians, 1 involving cyclists and 1 involving motorcyclists, out of 2 in total. Added together that is an involvement rate of 100%, though a collision involving two of those groups is counted in both figures, so it is a comparable index rather than a clean share.
Who is responsible for road safety in Isles of Scilly?
Isles of Scilly is a unitary authority, and is the highway authority for its own roads. That means it sets local speed limits, designs junctions and crossings, and decides safety scheme spending. Motorways and most trunk roads are managed separately by National Highways in England, Transport Scotland, or the Welsh Government, so the worst road in an area is often not the council's to change. Enforcement sits with the local police force.
Where does this data come from?
DfT STATS19, the record police complete at the scene of every injury collision, published annually under the Open Government Licence, combined with DfT's own road traffic estimates for the mileage denominator. Collision, casualty and KSI counts on this page are for 2025; only the trend compares 2021–2025. STATS19 counts collisions police attended and recorded, so collisions never reported do not appear, and under-reporting is known to be worst for cyclists and for slight injuries.
What actually changes the odds in Isles of Scilly
Data is only useful if it changes what you do. These three are picked from Isles of Scilly’s own figures above, each with the number that prompted it. Every guide explains how the thing works before it suggests buying anything, and most cost less than a third of a typical insurance excess.
Helmet camera
£50–£200
50% of collisions in Isles of Scilly involve someone on a bike. In a disputed pull-out, footage from the rider's viewpoint is what settles liability.
How it works →
Alarmed disc lock
£20–£50
Motorcyclists are in 50% of Isles of Scilly's collisions, and bikes are also lifted rather than ridden away. An alarmed disc lock covers the theft half for about £30.
How it works →
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