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CrashStats

SG6 road accidents: crash map and statistics

Police recorded 4,195 road traffic collisions in the SG6 postcode district, North Hertfordshire, from 1979 to 2025, and 5,436 people were killed or injured in them. Of those collisions, 48 were fatal and 786 were serious.

In 2025 police recorded 36 collisions, down 22% on 2024 (46).

Collisions since 1979
4,195
817th highest of 2,813 postcode districts
Casualties
5,436
1.30 per collision
Fatal collisions
48
51 people killed
Serious collisions
786
903 seriously injured
Collisions in 2025
36
Down 22% on 2024
Casualties in 2025
50
Down 19% on 2024

Road collision statistics for SG6

Collisions by severity, 1979 to 2025

  • Fatal481.1%
  • Serious78619%
  • Slight3,36180%

What the data shows

  • SG6 had 442 collisions from 2016 to 2025, 38% fewer than the 713 from 2006 to 2015.
  • 20% of collisions in SG6 were fatal or serious, against 20% across Great Britain.
  • 717 children under 16 were killed or injured in SG6, 13% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 37% of collisions in SG6.

Where SG6 ranks among 2,813 postcode districts

Most collisions
817th
Most casualties
857th
Most fatal collisions
1,255th
Most serious collisions
765th

Collisions by day of the week

  • Monday619 (15%)
  • Tuesday657 (16%)
  • Wednesday605 (14%)
  • Thursday641 (15%)
  • Friday752 (18%)
  • Saturday519 (12%)
  • Sunday402 (9.6%)

Light conditions

  • Daylight3,051 (73%)
  • Dark, street lights lit885 (21%)
  • Dark, no street lighting185 (4.4%)
  • Dark, lighting unknown41 (1%)
  • Dark, street lights unlit33 (0.8%)

Type of road

  • Single carriageway3,001 (72%)
  • Roundabout496 (12%)
  • Dual carriageway419 (10%)
  • One way street or slip road266 (6.3%)
  • Not recorded13 (0.3%)

Speed limit at the scene

  • 20 mph10 (0.2%)
  • 30 mph2,964 (71%)
  • 40 mph268 (6.4%)
  • 50 mph53 (1.3%)
  • 60 mph456 (11%)
  • 70 mph444 (11%)

Weather at the time

  • Fine, no high winds3,322 (79%)
  • Raining, no high winds558 (13%)
  • Fine with high winds69 (1.6%)
  • Raining with high winds53 (1.3%)
  • Snowing, no high winds39 (0.9%)
  • Fog or mist36 (0.9%)
  • Snowing with high winds4 (0.1%)
  • Other63 (1.5%)
  • Not recorded51 (1.2%)

Who was hurt

  • Car occupant3,038 (56%)
  • Motorcyclist800 (15%)
  • Cyclist690 (13%)
  • Pedestrian638 (12%)
  • Van occupant100 (1.8%)
  • Bus or coach occupant71 (1.3%)
  • Goods vehicle occupant (over 3.5 tonnes)26 (0.5%)
  • Minibus occupant23 (0.4%)
  • Taxi or private hire car occupant19 (0.3%)
  • Other vehicle occupant16 (0.3%)
  • Other9 (0.2%)
  • Not recorded6 (0.1%)

Source: Department for Transport, STATS19 road safety data

SG6 road accidents by year

Collisions and casualties in SG6, 1979 to 2025

Collisions in SG6 peaked at 145 in 1988; 2025 had 36.

  • Collisions
  • Collisions in 2025: 36
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20253650
20244662
20233342
20224055
20214147
20203042
20194151
20185268
20176168
20166278
20156683
20146073
20136387
20126695
20115676
20106085
20097496
200881105
200789109
200698143
2005104153
200491133
200391123
2002107150
2001120157
2000120159
1999105129
1998127167
1997118148
1996113144
1995106125
199485120
1993118148
1992116141
1991103128
1990115141
1989130178
1988145178
1987123157
1986143186
198592102
1984123170
1983115136
1982106128
1981102124
1980100137
1979122159

Map of recent crashes in SG6

Map of the 24 most recent crashes in SG6

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

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in SG6

The 24 most recent collisions in SG6 happened between 2 May and 22 December 2025.

Severity

Crashes by road in SG6

The A505 has the most collisions in SG6, 595 of 4,195 (14%), followed by the A1(M) (311).

Collisions in SG6 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA5055957598115
2ndA1(M)311482654
3rdA6141258346235
4thB197729809
5thA1549009
6thB656446716

Council areas covering SG6

Collisions in SG6 were recorded in 3 council areas. North Hertfordshire has 4,179 of 4,195 (99.6%).

Collisions in SG6 by council area, 1979 to 2025
RankCouncil areaCollisionsCasualtiesFatalSerious
1stNorth Hertfordshire4,1795,41348784
2ndCentral Bedfordshire81201
3rdEast Hertfordshire4701

Towns in SG6

Collisions in SG6 were recorded in 3 towns, led by Letchworth (2,903) and Baldock (32).