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CrashStats

N21 road accidents: crash map and statistics

Collisions since 1982
2,116
1,701st of 2,813 postcode districts, highest first
Casualties
2,542
1.20 per collision
Fatal collisions
15
16 people killed
Serious collisions
283
296 seriously injured
Collisions in 2025
35
Up 75% on 2024
Casualties in 2025
41
Up 95% on 2024

Road collision statistics for N21

Collisions by severity, 1982 to 2025

  • Fatal150.7%
  • Serious28313%
  • Slight1,81886%

What the data shows

  • N21 had 281 collisions from 2016 to 2025, 7% fewer than the 303 from 2006 to 2015.
  • 14% of collisions in N21 were fatal or serious, against 20% across Great Britain.
  • 280 children under 16 were killed or injured in N21, 12% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 27% of collisions in N21.

Where N21 ranks among 2,813 postcode districts

Most collisions
1,701st
Most casualties
1,833rd
Most fatal collisions
2,285th
Most serious collisions
2,050th

Collisions by day of the week

  • Monday288 (14%)
  • Tuesday326 (15%)
  • Wednesday317 (15%)
  • Thursday314 (15%)
  • Friday341 (16%)
  • Saturday326 (15%)
  • Sunday204 (9.6%)

Light conditions

  • Daylight1,478 (70%)
  • Dark, street lights lit611 (29%)
  • Dark, lighting unknown17 (0.8%)
  • Dark, no street lighting5 (0.2%)
  • Dark, street lights unlit5 (0.2%)

Type of road

  • Single carriageway1,859 (88%)
  • Roundabout151 (7.1%)
  • Dual carriageway45 (2.1%)
  • One way street or slip road22 (1%)
  • Not recorded39 (1.8%)

Speed limit at the scene

  • 10 mph1 (under 0.1%)
  • 20 mph48 (2.3%)
  • 30 mph2,056 (97%)
  • 40 mph9 (0.4%)
  • 50 mph1 (under 0.1%)
  • 60 mph1 (under 0.1%)

Weather at the time

  • Fine, no high winds1,736 (82%)
  • Raining, no high winds264 (12%)
  • Raining with high winds19 (0.9%)
  • Fine with high winds14 (0.7%)
  • Fog or mist8 (0.4%)
  • Snowing, no high winds7 (0.3%)
  • Other36 (1.7%)
  • Not recorded32 (1.5%)

Who was hurt

  • Car occupant1,504 (59%)
  • Pedestrian394 (15%)
  • Motorcyclist286 (11%)
  • Cyclist196 (7.7%)
  • Bus or coach occupant85 (3.3%)
  • Van occupant57 (2.2%)
  • Taxi or private hire car occupant12 (0.5%)
  • Other vehicle occupant4 (0.2%)
  • Minibus occupant3 (0.1%)
  • Goods vehicle occupant (over 3.5 tonnes)1 (under 0.1%)

Source: Department for Transport, STATS19 road safety data

N21 road accidents by year

Collisions and casualties in N21, 1982 to 2025

Collisions in N21 peaked at 88 in 1998; 2025 had 35.

  • Collisions
  • Collisions in 2025: 35
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20253541
20242021
20233143
20223338
20213235
20203234
20192431
20182734
20172628
20162126
20153844
20143338
20131823
20122631
20112731
20103040
20092630
20083344
20074251
20063035
20054150
20044246
20035370
20026287
20014258
20007290
19996374
199888101
19975963
19966788
19955259
19946472
19936069
19927587
19916071
19907288
19897284
19887891
198781103
19866175
19856678
19845974
19837377
19827089

Map of recent crashes in N21

Map of the 24 most recent crashes in N21

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

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in N21

The 24 most recent collisions in N21 happened between 31 March and 22 December 2025.

Severity

Crashes by road in N21

The A105 has the most collisions in N21, 728 of 2,116 (34%), followed by the B154 (20).

Collisions in N21 on each road, 1982 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA105728854393
2ndB154202212
3rdA1114601

Council area for N21

N21 is in Enfield, where police recorded 53,446 collisions from 1979 to 2025. N21 accounts for 4% of them.

Town in N21

All 2,116 collisions in N21 were in Enfield.