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CrashStats

Harrow road accidents: crash map and statistics

Police recorded 25,875 road traffic collisions in Harrow from 1981 to 2025, and 31,298 people were killed or injured in them. Of those collisions, 201 were fatal and 3,773 were serious.

In 2025 police recorded 394 collisions, up 6% on 2024 (371).

Collisions since 1981
25,875
50th highest of 2,851 towns
Casualties
31,298
1.21 per collision
Fatal collisions
201
205 people killed
Serious collisions
3,773
4,115 seriously injured
Collisions in 2025
394
Up 6% on 2024
Casualties in 2025
450
Up 2% on 2024

Road collision statistics for Harrow

Collisions by severity, 1981 to 2025

  • Fatal2010.8%
  • Serious3,77315%
  • Slight21,90185%

What the data shows

  • Harrow had 4,182 collisions from 2016 to 2025, about the same as the 4,228 from 2006 to 2015.
  • 15% of collisions in Harrow were fatal or serious, against 20% across Great Britain.
  • 3,577 children under 16 were killed or injured in Harrow, 12% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 26% of collisions in Harrow.

Where Harrow ranks among 2,851 towns

Most collisions
50th
Most casualties
54th
Most fatal collisions
59th
Most serious collisions
56th

Collisions by day of the week

  • Monday3,517 (14%)
  • Tuesday3,843 (15%)
  • Wednesday3,809 (15%)
  • Thursday3,879 (15%)
  • Friday4,271 (17%)
  • Saturday3,701 (14%)
  • Sunday2,855 (11%)

Light conditions

  • Daylight18,273 (71%)
  • Dark, street lights lit7,224 (28%)
  • Dark, lighting unknown270 (1%)
  • Dark, street lights unlit74 (0.3%)
  • Dark, no street lighting34 (0.1%)

Type of road

  • Single carriageway21,572 (83%)
  • Dual carriageway1,916 (7.4%)
  • Roundabout1,371 (5.3%)
  • One way street or slip road698 (2.7%)
  • Not recorded318 (1.2%)

Speed limit at the scene

  • 10 mph2 (under 0.1%)
  • 20 mph608 (2.3%)
  • 30 mph24,482 (95%)
  • 40 mph748 (2.9%)
  • 50 mph12 (under 0.1%)
  • 60 mph17 (0.1%)
  • 70 mph2 (under 0.1%)
  • Not recorded4 (under 0.1%)

Weather at the time

  • Fine, no high winds21,230 (82%)
  • Raining, no high winds3,303 (13%)
  • Fine with high winds185 (0.7%)
  • Raining with high winds138 (0.5%)
  • Snowing, no high winds86 (0.3%)
  • Fog or mist81 (0.3%)
  • Snowing with high winds9 (under 0.1%)
  • Other373 (1.4%)
  • Not recorded470 (1.8%)

Who was hurt

  • Car occupant16,941 (54%)
  • Pedestrian6,379 (20%)
  • Motorcyclist3,659 (12%)
  • Cyclist2,185 (7%)
  • Bus or coach occupant1,148 (3.7%)
  • Van occupant607 (1.9%)
  • Taxi or private hire car occupant210 (0.7%)
  • Other vehicle occupant77 (0.2%)
  • Goods vehicle occupant (over 3.5 tonnes)39 (0.1%)
  • Minibus occupant27 (0.1%)
  • Other7 (under 0.1%)
  • Not recorded19 (0.1%)

Source: Department for Transport, STATS19 road safety data

Harrow road accidents by year

Collisions and casualties in Harrow, 1981 to 2025

Collisions in Harrow peaked at 885 in 1982; 2025 had 394.

  • Collisions
  • Collisions in 2025: 394
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025394450
2024371443
2023401455
2022439518
2021374437
2020376426
2019467546
2018444548
2017465565
2016451559
2015439566
2014516636
2013367463
2012406519
2011391447
2010444563
2009420528
2008382480
2007393502
2006470576
2005534674
2004609741
2003586746
2002588735
2001688844
2000656824
1999732903
1998699824
1997753917
1996720878
1995733889
1994735875
1993730856
1992699814
1991731888
1990815968
1989817969
1988814970
1987770885
1986785881
1985746903
1984803980
19838361,005
19828851,101
198111

Map of recent crashes in Harrow

Map of the 24 most recent crashes in Harrow

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

  • 24 crashes
  • Fatal
  • Serious
  • Slight

Recent road crashes in Harrow

The 24 most recent collisions in Harrow happened between 1 December and 31 December 2025.

Severity

Crashes by road in Harrow

The A409 has the most collisions in Harrow, 2,287 of 25,875 (8.8%), followed by the A404 (2,286).

Collisions in Harrow on each road, 1981 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA4092,2872,75618350
2ndA4042,2862,78313343
3rdA4102,1192,57719301
4thA40061,5451,96613219
5thA40901,4681,84513201
6thA41401,3901,69423210
7thA3121,1401,3388150
8thB461413495565
9thA4005350443253
10thA4127283335333
11thB457270322140
12thB458170196226
13thA5137168017
14thA4008110152217
15thB463566306
16thB459424719
17thB466131601

Council areas covering Harrow

Collisions in Harrow were recorded in 6 council areas. Harrow has 23,805 of 25,875 (92%).

Collisions in Harrow by council area, 1981 to 2025
RankCouncil areaCollisionsCasualtiesFatalSerious
1stHarrow23,80528,6741863,479
2ndBrent1,8782,37915269
3rdBarnet145181017
4thEaling354805
5thHillingdon5600
6thHertsmere3400

Postcode districts in Harrow

Collisions in Harrow were recorded in 9 postcode districts, led by HA3 (6,994) and HA2 (5,340).