Hillingdon road traffic accidents
Hillingdon recorded 19,481 collisions in the STATS19 data between 1999 and 2025, involving 24,530 casualties. Of these collisions, 134 were fatal and 2,373 were serious. Recorded collisions in 2025 were down 4% on 2024.
Severity Breakdown
- Fatal
- 134
- Serious
- 2,373
- Casualties
- 24,530
- Fatal
- 134
- Serious
- 2,373
- Casualties
- 24,530
Collisions by Year
Areas covering Hillingdon
Roads in Hillingdon
Postcode districts in Hillingdon
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in Hillingdon
Road collision statistics for Hillingdon
Collisions recorded
19,481
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
24,530
Casualties recorded across every collision in this area.
Fatal collisions
134
Collisions in which at least one person died.
Serious collisions
2,373
12.9% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in Hillingdon
Collisions in Hillingdon are most frequently recorded on a Friday (16.3% of the total), with 29.9% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
64% of recorded collisions in Hillingdon happen on a single carriageway. Around 18.2% were recorded in adverse weather such as rain, snow or fog.
The collisions in Hillingdon have produced 24,530 casualties. Pedestrians account for 15.3% of those casualties, a marker of the risk to people on foot here.
Collisions by day of the week
Collisions by day of the week: Sunday 2,112 collisions, Monday 2,790 collisions, Tuesday 2,915 collisions, Wednesday 2,971 collisions, Thursday 2,945 collisions, Friday 3,174 collisions, Saturday 2,574 collisions.
Light conditions
Light conditions: Daylight 13,663 collisions, Darkness 5,818 collisions.
Road type
Road type: Single carriageway 12,471 collisions, Dual carriageway 4,034 collisions, Roundabout 1,896 collisions, Unknown 332 collisions, One way street 315 collisions, Slip road 257 collisions, One way street/Slip road 176 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 623 collisions, 30 mph 14,872 collisions, 40 mph 2,707 collisions, 50 mph 813 collisions, 60 mph 118 collisions, 70 mph 343 collisions.
Weather at the time
Weather at the time: Fine no high winds 15,822 collisions, Raining no high winds 2,422 collisions, Other 499 collisions, Unknown 390 collisions, Fine + high winds 118 collisions.
Who was hurt
Who was hurt: Driver or rider 15,404 casualties, Passenger 5,380 casualties, Pedestrian 3,746 casualties.
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Recent Accidents
Showing 20 of 19,481 accidents
Accident 200401XH00268
SeriousAccident 200401XH00287
SeriousAccident 200401XH00275
SlightAccident 200401XH00256
SlightAccident 200401XH00259
SlightAccident 200401XH00270
SlightAccident 200401XH00263
SlightAccident 200401XH00293
SlightAccident 200401XH00261
SlightAccident 200401TE00291
SeriousAccident 200401XH00295
SeriousAccident 200401XH00252
SlightAccident 200401XH00239
SlightAccident 200401XH00258
SlightAccident 200401XH00262
SlightAccident 200401XH00516
SlightAccident 200401XH00257
SlightAccident 200401XH00250
SeriousAccident 200401XH00307
SlightAccident 200401XH00269
SlightFrequently asked questions about road accidents in Hillingdon
How many road accidents have there been in Hillingdon?
19,481 collisions have been recorded in Hillingdon in the STATS19 road safety data between 1999 and 2025, involving 24,530 casualties.
How many of the collisions in Hillingdon were serious or fatal?
134 were fatal and 2,373 were serious — 12.9% of all recorded collisions in Hillingdon resulted in a death or serious injury.
When do most road accidents happen in Hillingdon?
Friday is the most common day for collisions in Hillingdon, accounting for 16.3% of them, and 29.9% of all collisions here happen in darkness.
What kind of roads do collisions in Hillingdon happen on?
64% of collisions in Hillingdon are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in Hillingdon?
Pedestrians make up 15.3% of the 24,530 casualties recorded in Hillingdon.
Is road safety in Hillingdon getting better or worse?
Recorded collisions in Hillingdon fell 4% in 2025 compared with 2024, though year-on-year figures move with both genuine risk and changes in reporting.
Where does the road accident data for Hillingdon come from?
It comes from STATS19, the official record of personal-injury road collisions reported to the police and published by the Department for Transport. The figures for Hillingdon cover 1999 to 2025.