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CrashStats

Harrow road accidents: crash map and statistics

Police recorded 27,989 road traffic collisions in Harrow from 1979 to 2025, and 34,012 people were killed or injured in them. Of those collisions, 250 were fatal and 4,266 were serious.

In 2025 police recorded 358 collisions, level with 2024 (359), and casualties fell from 424 to 412.

Collisions, 1979 to 2025
27,989
102nd highest of 351 areas
Casualties
34,012
1.22 per collision
Fatal collisions
250
0.9% of collisions
Collisions in 2025
358
Level with 2024

Crash severity in Harrow

0.9% of collisions in Harrow from 1979 to 2025 were fatal and 15% serious, against 1.6% and 18% across Great Britain.

Collisions by worst injury

  • Fatal2500.9%
  • Serious4,26615%
  • Slight23,47384%

People hurt, by injury

  • Fatal2580.8%
  • Serious4,68814%
  • Slight29,06685%

Harrow road accidents by year

Collisions and casualties in Harrow, 1979 to 2025

Collisions peaked at 956 in 1979. In 2025 there were 358, level with 2024.

  • Collisions
  • Collisions in 2025: 358
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025358412
2024359424
2023403466
2022422501
2021385450
2020382443
2019428500
2018414510
2017432518
2016418510
2015424548
2014486593
2013353442
2012392497
2011367422
2010428551
2009401508
2008372470
2007387496
2006454558
2005504640
2004582708
2003548675
2002560711
2001645798
2000614772
1999700857
1998686810
1997718875
1996705866
1995712862
1994726866
1993720861
1992696815
1991723873
1990803960
1989795957
1988791943
1987750862
1986762849
1985734888
1984813988
19838461,027
19829321,170
19819481,210
19809551,165
19799561,185

When and where crashes happen in Harrow

Collisions by day of the week

  • Monday3,790 (14%)
  • Tuesday4,178 (15%)
  • Wednesday4,057 (14%)
  • Thursday4,181 (15%)
  • Friday4,608 (16%)
  • Saturday4,067 (15%)
  • Sunday3,108 (11%)

Collisions by time of day

  • 00:00 to 02:591,079 (3.9%)
  • 03:00 to 05:59408 (1.5%)
  • 06:00 to 08:593,392 (12%)
  • 09:00 to 11:593,896 (14%)
  • 12:00 to 14:594,912 (18%)
  • 15:00 to 17:596,309 (23%)
  • 18:00 to 20:594,900 (18%)
  • 21:00 to 23:593,093 (11%)

Collisions by month

  • January2,305 (8.2%)
  • February1,960 (7%)
  • March2,308 (8.2%)
  • April2,146 (7.7%)
  • May2,331 (8.3%)
  • June2,352 (8.4%)
  • July2,431 (8.7%)
  • August2,125 (7.6%)
  • September2,442 (8.7%)
  • October2,589 (9.3%)
  • November2,662 (9.5%)
  • December2,338 (8.4%)

Light conditions

  • Daylight19,518 (70%)
  • Dark, street lights lit8,078 (29%)
  • Dark, lighting unknown269 (1%)
  • Dark, street lights unlit74 (0.3%)
  • Dark, no street lighting50 (0.2%)

Weather at the time

  • Fine, no high winds20,584 (74%)
  • Raining, no high winds3,668 (13%)
  • Fine with high winds176 (0.6%)
  • Raining with high winds134 (0.5%)
  • Snowing, no high winds132 (0.5%)
  • Fog or mist96 (0.3%)
  • Snowing with high winds10 (under 0.1%)
  • Other2,737 (9.8%)
  • Not recorded452 (1.6%)

Road surface

  • Dry20,370 (73%)
  • Wet or damp6,957 (25%)
  • Frost or ice299 (1.1%)
  • Snow157 (0.6%)
  • Flood over 3cm deep11 (under 0.1%)
  • Oil or diesel5 (under 0.1%)
  • Not recorded190 (0.7%)

Speed limit at the scene

  • 10 mph2 (under 0.1%)
  • 20 mph590 (2.1%)
  • 30 mph26,385 (94%)
  • 40 mph933 (3.3%)
  • 50 mph17 (0.1%)
  • 60 mph41 (0.1%)
  • 70 mph17 (0.1%)
  • Not recorded4 (under 0.1%)

Type of road

  • Single carriageway21,564 (77%)
  • Dual carriageway1,745 (6.2%)
  • Roundabout1,446 (5.2%)
  • One way street or slip road774 (2.8%)
  • Not recorded2,460 (8.8%)

Source: Department for Transport, STATS19 road safety data

Who is hurt in road crashes in Harrow

Casualties by road user

  • Car occupant18,325 (54%)
  • Pedestrian6,802 (20%)
  • Motorcyclist4,208 (12%)
  • Cyclist2,439 (7.2%)
  • Bus or coach occupant1,144 (3.4%)
  • Van occupant703 (2.1%)
  • Taxi or private hire car occupant203 (0.6%)
  • Other vehicle occupant89 (0.3%)
  • Goods vehicle occupant (over 3.5 tonnes)44 (0.1%)
  • Minibus occupant29 (0.1%)
  • Other7 (under 0.1%)
  • Not recorded19 (0.1%)

Casualties by age

  • 0 to 5722 (2.1%)
  • 6 to 101,295 (3.8%)
  • 11 to 151,919 (5.6%)
  • 16 to 205,180 (15%)
  • 21 to 254,365 (13%)
  • 26 to 356,061 (18%)
  • 36 to 454,330 (13%)
  • 46 to 553,187 (9.4%)
  • 56 to 652,172 (6.4%)
  • 66 to 751,480 (4.4%)
  • Over 751,256 (3.7%)
  • Not recorded2,045 (6%)

Drivers, passengers and pedestrians

  • Driver or rider19,779 (58%)
  • Passenger7,431 (22%)
  • Pedestrian6,802 (20%)

Vehicles involved

  • Car37,255 (76%)
  • Motorcycle4,434 (9%)
  • Pedal cycle2,491 (5.1%)
  • Van or goods vehicle up to 3.5 tonnes2,328 (4.7%)
  • Bus or coach1,468 (3%)
  • Goods vehicle over 3.5 tonnes413 (0.8%)
  • Taxi or private hire car336 (0.7%)
  • Other vehicle228 (0.5%)
  • Minibus55 (0.1%)
  • Personal powered transporter (e-scooter or similar)21 (under 0.1%)
  • Other13 (under 0.1%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes and hotspots in Harrow

Map of the 24 most recent crashes and the 10 busiest accident hotspots in Harrow

Use the arrow keys to move the map and the plus and minus keys to zoom.

  • 24 crashes
  • Fatal
  • Serious
  • Slight

Accident hotspots (10)

How Harrow ranks among 351 areas

Of the 351 areas in England, Scotland and Wales, Harrow had the 102nd most road collisions from 1979 to 2025.

Collisions
102nd
highest of 351 areas
Casualties
126th
highest of 351 areas
Fatal collisions
95th
lowest of 351 areas
Serious collisions
149th
highest of 351 areas
Areas ranked by collisions, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
99thMerton29,17334,6802374,516
100thHighland28,65143,4331,1958,901
101stPreston28,41439,2643145,156
102ndHarrow (this area)27,98934,0122504,266
103rdAberdeenshire27,93839,8301,2317,474
104thGateshead27,89938,4104074,555
105thSutton27,85734,3182684,470

Accident hotspots in Harrow

Greenhill, Harrow, HA1 2EN area is the busiest accident hotspot in Harrow, with 1,342 collisions from 2001 to 2025, 4 of them fatal.

Roads in Harrow with the most crashes

The A409 had the most collisions in Harrow from 1979 to 2025: 2,812, including 24 fatal and 452 serious.

Roads ranked by collisions in Harrow, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA4092,8123,47324452
2ndA4102,3602,86522352
3rdA4042,3512,84316355
4thA41401,8212,25927293
5thA40901,6522,08120246
6thA3121,2751,49311173
7thB461466561676
8thA4005433546362
9thA4127283336427
10thB457269321140
11thA4006243308441
12thA4008240340836
13thA5199253346
14thB458170196226
15thB463616807
16thB4594857112
17thA413845113
18thB466243003
19thA518391502
20thB4044502

Towns in Harrow

Harrow itself had the most collisions of any town in the area from 1979 to 2025: 23,805.

Postcode districts in Harrow

HA3 had the most collisions of any postcode district in Harrow from 1979 to 2025: 5,905.

Latest crashes in Harrow

Of the latest 24 crashes in Harrow, 1 was fatal and 4 were serious. The most recent was on 31 December 2025.

Severity