Harrow road traffic accidents
Harrow recorded 12,551 collisions in the STATS19 data between 1999 and 2024, involving 15,414 casualties. Of these collisions, 80 were fatal and 1,524 were serious. Recorded collisions in 2024 were down 8% on 2023.
Severity Breakdown
- Fatal
- 80
- Serious
- 1,524
- Casualties
- 15,414
- Fatal
- 80
- Serious
- 1,524
- Casualties
- 15,414
Collisions by Year
Areas covering Harrow
Roads in Harrow
Postcode districts in Harrow
Accidents in Harrow
Road collision statistics for Harrow
Collisions recorded
12,551
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
15,414
Casualties recorded across every collision in this area.
Fatal collisions
80
Collisions in which at least one person died.
Serious collisions
1,524
12.8% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in Harrow
Collisions in Harrow are most frequently recorded on a Friday (16.1% of the total), with 29.8% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
80.7% of recorded collisions in Harrow happen on a single carriageway. Around 18.4% were recorded in adverse weather such as rain, snow or fog.
The collisions in Harrow have produced 15,414 casualties. Pedestrians account for 19% 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 1,443 collisions, Monday 1,739 collisions, Tuesday 1,837 collisions, Wednesday 1,803 collisions, Thursday 1,914 collisions, Friday 2,022 collisions, Saturday 1,793 collisions.
Light conditions
Light conditions: Daylight 8,810 collisions, Darkness 3,741 collisions.
Road type
Road type: Single carriageway 10,129 collisions, Dual carriageway 998 collisions, Roundabout 845 collisions, Unknown 222 collisions, One way street 180 collisions, Slip road 122 collisions, Other 55 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 527 collisions, 30 mph 11,707 collisions, 40 mph 304 collisions, 50 mph 8 collisions, 60 mph 2 collisions.
Weather at the time
Weather at the time: Fine no high winds 10,179 collisions, Raining no high winds 1,569 collisions, Unknown 348 collisions, Other 265 collisions, Fine + high winds 64 collisions.
Who was hurt
Who was hurt: Driver or rider 9,157 casualties, Passenger 3,329 casualties, Pedestrian 2,928 casualties.
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Recent Accidents
Showing 20 of 12,551 accidents
Accident 2024010551884
SlightAccident 2024010551771
SlightAccident 2024010551594
SeriousAccident 2024010551577
SlightAccident 2024010551406
SlightAccident 2024010553542
SlightAccident 2024010551728
SlightAccident 2024010551310
SlightAccident 2024010551270
SlightAccident 2024010551231
SlightAccident 2024010551117
SeriousAccident 2024010551089
SlightAccident 2024010551060
SlightAccident 2024010550954
SlightAccident 2024010550672
SeriousAccident 2024010550443
SlightAccident 2024010550424
SlightAccident 2024010550507
SlightAccident 2024010550005
SlightAccident 2024010549699
SeriousFrequently asked questions about road accidents in Harrow
How many road accidents have there been in Harrow?
12,551 collisions have been recorded in Harrow in the STATS19 road safety data between 1999 and 2024, involving 15,414 casualties.
How many of the collisions in Harrow were serious or fatal?
80 were fatal and 1,524 were serious — 12.8% of all recorded collisions in Harrow resulted in a death or serious injury.
When do most road accidents happen in Harrow?
Friday is the most common day for collisions in Harrow, accounting for 16.1% of them, and 29.8% of all collisions here happen in darkness.
What kind of roads do collisions in Harrow happen on?
80.7% of collisions in Harrow are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in Harrow?
Pedestrians make up 19% of the 15,414 casualties recorded in Harrow.
Is road safety in Harrow getting better or worse?
Recorded collisions in Harrow fell 8% in 2024 compared with 2023, though year-on-year figures move with both genuine risk and changes in reporting.
Where does the road accident data for Harrow 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 Harrow cover 1999 to 2024.