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CrashStats

Harrow road accidents in 2021: crash map and statistics

Police recorded 385 road traffic collisions in Harrow in 2021, and 450 people were killed or injured in them. Of those collisions, 1 was fatal and 42 were serious.

Collisions were up 1% on 2020 (382), and casualties rose from 443.

Across all years from 1979 to 2025, police recorded 27,989 collisions in Harrow.

Collisions in 2021
385
Up 1% on 2020
Casualties in 2021
450
Up 2% on 2020
Fatal collisions
1
0.3% of collisions
Serious collisions
42
11% of collisions

Crash severity in Harrow in 2021

0.3% of collisions in Harrow in 2021 were fatal and 11% serious, against 0.9% and 15% in Harrow from 1979 to 2025.

Collisions by worst injury

  • Fatal10.3%
  • Serious4211%
  • Slight34289%

People hurt, by injury

  • Fatal10.2%
  • Serious4510%
  • Slight40490%

Harrow road accidents by year

Collisions and casualties in Harrow, 1979 to 2025

Collisions peaked at 956 in 1979. 2021 is highlighted, with 385, up 1% on 2020.

  • Collisions
  • Collisions in 2021: 385
  • 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 in 2021

Collisions by day of the week

  • Monday42 (11%)
  • Tuesday55 (14%)
  • Wednesday64 (17%)
  • Thursday51 (13%)
  • Friday64 (17%)
  • Saturday59 (15%)
  • Sunday50 (13%)

Collisions by time of day

  • 00:00 to 02:598 (2.1%)
  • 03:00 to 05:596 (1.6%)
  • 06:00 to 08:5937 (9.6%)
  • 09:00 to 11:5954 (14%)
  • 12:00 to 14:5970 (18%)
  • 15:00 to 17:5993 (24%)
  • 18:00 to 20:5979 (21%)
  • 21:00 to 23:5938 (9.9%)

Collisions by month

  • January34 (8.8%)
  • February21 (5.5%)
  • March24 (6.2%)
  • April27 (7%)
  • May33 (8.6%)
  • June29 (7.5%)
  • July33 (8.6%)
  • August35 (9.1%)
  • September45 (12%)
  • October37 (9.6%)
  • November42 (11%)
  • December25 (6.5%)

Light conditions

  • Daylight259 (67%)
  • Dark, street lights lit105 (27%)
  • Dark, lighting unknown16 (4.2%)
  • Dark, no street lighting3 (0.8%)
  • Dark, street lights unlit2 (0.5%)

Weather at the time

  • Fine, no high winds301 (78%)
  • Raining, no high winds44 (11%)
  • Raining with high winds4 (1%)
  • Fine with high winds3 (0.8%)
  • Fog or mist1 (0.3%)
  • Other17 (4.4%)
  • Not recorded15 (3.9%)

Road surface

  • Dry289 (75%)
  • Wet or damp85 (22%)
  • Frost or ice1 (0.3%)
  • Not recorded10 (2.6%)

Speed limit at the scene

  • 20 mph77 (20%)
  • 30 mph299 (78%)
  • 40 mph9 (2.3%)

Type of road

  • Single carriageway273 (71%)
  • Dual carriageway36 (9.4%)
  • Roundabout35 (9.1%)
  • One way street or slip road27 (7%)
  • Not recorded14 (3.6%)

Source: Department for Transport, STATS19 road safety data

Who was hurt in road crashes in Harrow in 2021

Casualties by road user

  • Car occupant229 (51%)
  • Motorcyclist75 (17%)
  • Pedestrian72 (16%)
  • Cyclist49 (11%)
  • Taxi or private hire car occupant10 (2.2%)
  • Bus or coach occupant7 (1.6%)
  • Van occupant4 (0.9%)
  • Goods vehicle occupant (over 3.5 tonnes)1 (0.2%)
  • Mobility scooter rider1 (0.2%)
  • Not recorded2 (0.4%)

Casualties by age

  • 0 to 58 (1.8%)
  • 6 to 107 (1.6%)
  • 11 to 1519 (4.2%)
  • 16 to 2046 (10%)
  • 21 to 2556 (12%)
  • 26 to 35122 (27%)
  • 36 to 4566 (15%)
  • 46 to 5552 (12%)
  • 56 to 6528 (6.2%)
  • 66 to 7517 (3.8%)
  • Over 7511 (2.4%)
  • Not recorded18 (4%)

Drivers, passengers and pedestrians

  • Driver or rider302 (67%)
  • Passenger76 (17%)
  • Pedestrian72 (16%)

Vehicles involved

  • Car517 (74%)
  • Motorcycle82 (12%)
  • Pedal cycle50 (7.1%)
  • Van or goods vehicle up to 3.5 tonnes23 (3.3%)
  • Bus or coach12 (1.7%)
  • Taxi or private hire car12 (1.7%)
  • Goods vehicle over 3.5 tonnes2 (0.3%)
  • Personal powered transporter (e-scooter or similar)2 (0.3%)
  • Minibus1 (0.1%)
  • Mobility scooter1 (0.1%)
  • Other1 (0.1%)

Source: Department for Transport, STATS19 road safety data

Crash map for Harrow in 2021

Map of the last 24 crashes of 2021 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
  • Serious
  • Slight

Accident hotspots (10)

How Harrow ranked among 350 areas in 2021

Of the 350 areas in England, Scotland and Wales, Harrow had the 72nd most road collisions in 2021.

Collisions
72nd
highest of 350 areas
Casualties
87th
highest of 350 areas
Fatal collisions
275th
of 350 areas, highest first
Serious collisions
205th
of 350 areas, highest first

Accident hotspots in Harrow in 2021

Greenhill, Harrow, HA1 2EN area was the busiest accident hotspot in Harrow in 2021, with 42 collisions, 3 of them serious.

Roads in Harrow with the most crashes in 2021

The A409 had the most collisions in Harrow in 2021: 38, including 5 serious.

Roads ranked by collisions in Harrow, 2021
RankRoadCollisionsCasualtiesFatalSerious
1stA409384405
2ndA410303807
3rdA4090252912
4thA5171800
5thA4140162101
6thA404151602
7thA312131500
8thA40067703
9thB4576602
10thA40054600
11thA41274401
12thA40083301
13thB4613301
14thB4633300
15thB4581100

Towns in Harrow: crashes in 2021

Harrow itself had the most collisions of any town in the area in 2021: 356.

Postcode districts in Harrow: crashes in 2021

HA3 had the most collisions of any postcode district in Harrow in 2021: 93.

Latest crashes in Harrow in 2021

Of the last 24 crashes in Harrow in 2021, none were fatal and 5 were serious. The last was on 24 December 2021.

Severity

Harrow road accidents in other years