London borough · England
Harrow road collision data
Between 2021 and 2025, the police recorded 1,927 injury collisions in Harrow's highway authority area, 270 of them fatal or serious. These are the published STATS19 figures, which also include motorways and trunk roads in the area.
- Injury collisions
- 1,927
- 2021–2025
- Casualties
- 2,253
- People injured or killed
- Fatal collisions
- 10
- 260 serious, 1,657 slight
- Vulnerable road users
- 74%
- of people killed or seriously injured
Collisions by year and severity
In 2025, Harrow recorded 55 fatal or serious collisions, 2% above its average of 54 a year over 2021–2025.
| Year | Fatal | Serious | Slight | Total | Casualties | Fatal or serious |
|---|---|---|---|---|---|---|
| 2021 | 1 | 42 | 342 | 385 | 450 |
43
|
| 2022 | 3 | 55 | 364 | 422 | 501 |
58
|
| 2023 | 2 | 54 | 347 | 403 | 466 |
56
|
| 2024 | 0 | 58 | 301 | 359 | 424 |
58
|
| 2025 | 4 | 51 | 303 | 358 | 412 |
55
|
| 2021–2025 | 10 | 260 | 1,657 | 1,927 | 2,253 | 270 |
Casualties by road user
2,253 people were hurt in these collisions: 10 killed, 273 seriously injured and 1,970 slightly injured. Pedestrians, pedal cyclists and motorcyclists made up 74% of those killed or seriously injured.
| Road user | Casualties | Share | Killed or seriously injured | Share of KSI |
|---|---|---|---|---|
| Pedestrians | 464 | 20.6% | 115 | 40.6% |
| Pedal cyclists | 193 | 8.6% | 39 | 13.8% |
| Motorcyclists | 455 | 20.2% | 56 | 19.8% |
| All road users | 2,253 | 100% | 283 | 100% |
Roads with the most collisions
Classified roads in Harrow, by injury collisions recorded on them in 2021–2025.
- A409 172 collisions · 29 fatal or serious
- A410 125 collisions · 25 fatal or serious
- A404 122 collisions · 15 fatal or serious
- A4140 111 collisions · 13 fatal or serious
- A4090 99 collisions · 10 fatal or serious
- A312 80 collisions · 10 fatal or serious
- A5 36 collisions · 5 fatal or serious
- B461 29 collisions · 2 fatal or serious
- A4006 28 collisions · 7 fatal or serious
- A4005 22 collisions · 2 fatal or serious
Areas within Harrow
Area pages with maps, hotspots and every collision, by collisions in 2021–2025.
How to get a formal collision extract from Harrow
The council's road safety or traffic team holds the full police records for its area. A formal extract can add what the published data leaves out: contributory factors, the officer's description of each collision and the current year's provisional records. Developers, consultants and solicitors usually pay for it.
Check Harrow's website for current fees, or contact its road safety team. Councils usually charge for extracts and send a quote before they start.
Source: Department for Transport road safety data (STATS19), 2021–2025, published under the Open Government Licence v3.0. Collisions are counted against the local highway authority area recorded by the police. Casualty severities are as recorded at the time and are not adjusted.