Skip to main content
CrashStats

South Mimms road accidents: crash map and statistics

Police recorded 146 road traffic collisions in South Mimms, Hertsmere, from 1982 to 2025, and 201 people were killed or injured in them. Of those collisions, none were fatal and 13 were serious.

No collisions were recorded in 2025, after 4 in 2024.

Collisions since 1982
146
2,313th of 2,851 towns, highest first
Casualties
201
1.38 per collision
Fatal collisions
0
No one killed
Serious collisions
13
16 seriously injured
Collisions in 2025
0
4 in 2024
Casualties in 2025
0
4 in 2024

Road collision statistics for South Mimms

Collisions by severity, 1982 to 2025

  • Fatal00%
  • Serious138.9%
  • Slight13391%

What the data shows

  • South Mimms had 32 collisions from 2016 to 2025, 3% more than the 31 from 2006 to 2015.
  • 8.9% of collisions in South Mimms were fatal or serious, against 20% across Great Britain.
  • 7 children under 16 were killed or injured in South Mimms, 3.5% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 29% of collisions in South Mimms.

Where South Mimms ranks among 2,851 towns

Most collisions
2,313th
Most casualties
2,262nd
Most fatal collisions
None
Most serious collisions
2,836th

Collisions by day of the week

  • Monday22 (15%)
  • Tuesday17 (12%)
  • Wednesday16 (11%)
  • Thursday23 (16%)
  • Friday25 (17%)
  • Saturday22 (15%)
  • Sunday21 (14%)

Light conditions

  • Daylight109 (75%)
  • Dark, street lights lit33 (23%)
  • Dark, no street lighting3 (2.1%)
  • Dark, lighting unknown1 (0.7%)

Type of road

  • One way street or slip road59 (40%)
  • Dual carriageway43 (29%)
  • Roundabout27 (18%)
  • Single carriageway15 (10%)
  • Not recorded2 (1.4%)

Speed limit at the scene

  • 20 mph2 (1.4%)
  • 30 mph30 (21%)
  • 40 mph3 (2.1%)
  • 50 mph4 (2.7%)
  • 60 mph35 (24%)
  • 70 mph72 (49%)

Weather at the time

  • Fine, no high winds120 (82%)
  • Raining, no high winds21 (14%)
  • Fog or mist1 (0.7%)
  • Raining with high winds1 (0.7%)
  • Other2 (1.4%)
  • Not recorded1 (0.7%)

Who was hurt

  • Car occupant168 (84%)
  • Motorcyclist15 (7.5%)
  • Van occupant9 (4.5%)
  • Goods vehicle occupant (over 3.5 tonnes)5 (2.5%)
  • Cyclist2 (1%)
  • Pedestrian2 (1%)

Source: Department for Transport, STATS19 road safety data

South Mimms road accidents by year

Collisions and casualties in South Mimms, 1982 to 2025

Collisions in South Mimms peaked at 7 in 2006; none were recorded in 2025.

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202500
202444
202366
202233
202147
202011
201944
201834
201711
2016611
201512
201412
201346
201222
201157
201034
200934
200811
200746
200677
200533
200477
200368
200259
200133
200026
199957
199878
199733
199656
199556
199438
199333
199257
199146
199023
198956
198812
198711
198623
198513
198423
198311
198227

Map of recent crashes in South Mimms

Map of the 24 most recent crashes in South Mimms

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

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in South Mimms

The 24 most recent collisions in South Mimms happened between 29 June 2018 and 8 August 2024.

Severity

Crashes by road in South Mimms

The M25 has the most collisions in South Mimms, 34 of 146 (23%), followed by the A1(M) (31).

Collisions in South Mimms on each road, 1982 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stM25344703
2ndA1(M)314601
3rdA1202901
4thB19761401

Council area for South Mimms

South Mimms is in Hertsmere, where police recorded 20,104 collisions from 1979 to 2025. South Mimms accounts for 0.7% of them.

Postcode district for South Mimms

All 146 collisions in South Mimms were in the EN6 postcode district.