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CrashStats

CO4 road accidents: crash map and statistics

Police recorded 5,189 road traffic collisions in the CO4 postcode district, Colchester, from 1979 to 2025, and 6,653 people were killed or injured in them. Of those collisions, 70 were fatal and 1,033 were serious.

In 2025 police recorded 77 collisions, down 13% on 2024 (88).

Collisions since 1979
5,189
510th highest of 2,813 postcode districts
Casualties
6,653
1.28 per collision
Fatal collisions
70
71 people killed
Serious collisions
1,033
1,157 seriously injured
Collisions in 2025
77
Down 13% on 2024
Casualties in 2025
103
Down 6% on 2024

Road collision statistics for CO4

Collisions by severity, 1979 to 2025

  • Fatal701.3%
  • Serious1,03320%
  • Slight4,08679%

What the data shows

  • CO4 had 748 collisions from 2016 to 2025, 15% fewer than the 883 from 2006 to 2015.
  • 21% of collisions in CO4 were fatal or serious, against 20% across Great Britain.
  • 830 children under 16 were killed or injured in CO4, 13% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 31% of collisions in CO4.

Where CO4 ranks among 2,813 postcode districts

Most collisions
510th
Most casualties
550th
Most fatal collisions
685th
Most serious collisions
357th

Collisions by day of the week

  • Monday722 (14%)
  • Tuesday763 (15%)
  • Wednesday870 (17%)
  • Thursday816 (16%)
  • Friday848 (16%)
  • Saturday653 (13%)
  • Sunday517 (10%)

Light conditions

  • Daylight3,702 (71%)
  • Dark, street lights lit1,082 (21%)
  • Dark, no street lighting332 (6.4%)
  • Dark, lighting unknown54 (1%)
  • Dark, street lights unlit19 (0.4%)

Type of road

  • Single carriageway3,362 (65%)
  • Roundabout919 (18%)
  • Dual carriageway792 (15%)
  • One way street or slip road85 (1.6%)
  • Not recorded31 (0.6%)

Speed limit at the scene

  • 20 mph22 (0.4%)
  • 30 mph3,105 (60%)
  • 40 mph640 (12%)
  • 50 mph245 (4.7%)
  • 60 mph521 (10%)
  • 70 mph656 (13%)

Weather at the time

  • Fine, no high winds4,229 (81%)
  • Raining, no high winds623 (12%)
  • Fine with high winds55 (1.1%)
  • Raining with high winds45 (0.9%)
  • Fog or mist41 (0.8%)
  • Snowing, no high winds34 (0.7%)
  • Snowing with high winds7 (0.1%)
  • Other115 (2.2%)
  • Not recorded40 (0.8%)

Who was hurt

  • Car occupant3,641 (55%)
  • Motorcyclist963 (14%)
  • Pedestrian875 (13%)
  • Cyclist756 (11%)
  • Van occupant170 (2.6%)
  • Bus or coach occupant87 (1.3%)
  • Goods vehicle occupant (over 3.5 tonnes)42 (0.6%)
  • Minibus occupant42 (0.6%)
  • Taxi or private hire car occupant42 (0.6%)
  • Other vehicle occupant16 (0.2%)
  • Other7 (0.1%)
  • Not recorded12 (0.2%)

Source: Department for Transport, STATS19 road safety data

CO4 road accidents by year

Collisions and casualties in CO4, 1979 to 2025

Collisions in CO4 peaked at 173 in 1989; 2025 had 77.

  • Collisions
  • Collisions in 2025: 77
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202577103
202488109
20235160
202282104
20218096
20207083
20196779
20187190
20176473
201698138
201585111
201486111
201379101
201283111
201182105
20107896
20097996
200899120
200797115
2006115135
2005134162
2004127141
2003126165
2002132168
2001134167
2000136187
1999135171
1998144176
1997113145
1996116149
1995132164
1994138173
1993141183
1992139189
1991130171
1990133174
1989173233
1988108157
1987137179
1986141176
1985134182
1984136188
1983124168
1982121163
1981125159
1980128170
1979121157

Map of recent crashes in CO4

Map of the 24 most recent crashes in CO4

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

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in CO4

The 24 most recent collisions in CO4 happened between 28 August and 23 December 2025.

Severity

Crashes by road in CO4

The A133 has the most collisions in CO4, 758 of 5,189 (15%), followed by the A1232 (719).

Collisions in CO4 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA13375898412115
2ndA12327199086110
3rdA134413525291
4thA123986331586
5thA137378448189
6thB1508110139123
7thA12090122313
8thB10276186114
9thB1028131813
10thB10256601
11thA11244400
12thA1323300

Council areas covering CO4

Collisions in CO4 were recorded in 3 council areas. Colchester has 5,023 of 5,189 (97%).

Collisions in CO4 by council area, 1979 to 2025
RankCouncil areaCollisionsCasualtiesFatalSerious
1stColchester5,0236,430691,002
2ndTendring159213129
3rdBabergh3401

Town in CO4

Of the 5,189 collisions in CO4, 3,945 (76%) were in Colchester.