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CrashStats

LL21 road accidents: crash map and statistics

Police recorded 1,913 road traffic collisions in the LL21 postcode district, Denbighshire, from 1979 to 2025, and 3,335 people were killed or injured in them. Of those collisions, 69 were fatal and 486 were serious.

In 2025 police recorded 14 collisions, up from 13 in 2024.

Collisions since 1979
1,913
1,792nd of 2,813 postcode districts, highest first
Casualties
3,335
1.74 per collision
Fatal collisions
69
74 people killed
Serious collisions
486
673 seriously injured
Collisions in 2025
14
13 in 2024
Casualties in 2025
22
Down 8% on 2024

Road collision statistics for LL21

Collisions by severity, 1979 to 2025

  • Fatal693.6%
  • Serious48625%
  • Slight1,35871%

What the data shows

  • LL21 had 158 collisions from 2016 to 2025, 51% fewer than the 320 from 2006 to 2015.
  • 29% of collisions in LL21 were fatal or serious, against 20% across Great Britain.
  • 339 children under 16 were killed or injured in LL21, 10% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 48% of collisions in LL21.

Where LL21 ranks among 2,813 postcode districts

Most collisions
1,792nd
Most casualties
1,545th
Most fatal collisions
702nd
Most serious collisions
1,532nd

Collisions by day of the week

  • Monday241 (13%)
  • Tuesday222 (12%)
  • Wednesday205 (11%)
  • Thursday228 (12%)
  • Friday302 (16%)
  • Saturday364 (19%)
  • Sunday351 (18%)

Light conditions

  • Daylight1,528 (80%)
  • Dark, no street lighting303 (16%)
  • Dark, street lights lit63 (3.3%)
  • Dark, lighting unknown17 (0.9%)
  • Dark, street lights unlit2 (0.1%)

Type of road

  • Single carriageway1,881 (98%)
  • Dual carriageway24 (1.3%)
  • One way street or slip road1 (0.1%)
  • Not recorded7 (0.4%)

Speed limit at the scene

  • 20 mph4 (0.2%)
  • 30 mph174 (9.1%)
  • 40 mph24 (1.3%)
  • 50 mph27 (1.4%)
  • 60 mph1,580 (83%)
  • 70 mph104 (5.4%)

Weather at the time

  • Fine, no high winds1,312 (69%)
  • Raining, no high winds376 (20%)
  • Raining with high winds40 (2.1%)
  • Snowing, no high winds29 (1.5%)
  • Fine with high winds19 (1%)
  • Snowing with high winds11 (0.6%)
  • Fog or mist4 (0.2%)
  • Other111 (5.8%)
  • Not recorded11 (0.6%)

Who was hurt

  • Car occupant2,549 (76%)
  • Motorcyclist364 (11%)
  • Van occupant100 (3%)
  • Pedestrian94 (2.8%)
  • Goods vehicle occupant (over 3.5 tonnes)79 (2.4%)
  • Cyclist43 (1.3%)
  • Minibus occupant40 (1.2%)
  • Bus or coach occupant34 (1%)
  • Other vehicle occupant17 (0.5%)
  • Taxi or private hire car occupant8 (0.2%)
  • Other7 (0.2%)

Source: Department for Transport, STATS19 road safety data

LL21 road accidents by year

Collisions and casualties in LL21, 1979 to 2025

Collisions in LL21 peaked at 67 in 1991; 2025 had 14.

  • Collisions
  • Collisions in 2025: 14
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251422
20241324
20231422
20221418
20211727
2020816
20191930
20181733
20172037
20162237
20152336
20142338
20132650
20123345
20113854
20103045
20093147
20083853
20074679
20063262
20053049
20043663
20034266
20024472
20014272
20004878
199961110
19984657
19975699
199664127
19955194
199461103
19934697
19925095
199167120
199067127
198964106
198860121
19875694
19864274
198563106
198457106
198356113
198263123
19814685
198057107
19796096

Map of recent crashes in LL21

Map of the 24 most recent crashes in LL21

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

  • 24 crashes
  • Fatal
  • Serious
  • Slight

Recent road crashes in LL21

The 24 most recent collisions in LL21 happened between 15 May 2024 and 20 November 2025.

Severity

Crashes by road in LL21

The A5 has the most collisions in LL21, 888 of 1,913 (46%), followed by the A494 (329).

Collisions in LL21 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA58881,61935217
2ndA4943295681384
3rdA5104290546777
4thB510578120527
5thB440173104218
6thB450165104422
7thB439181903

Council areas covering LL21

Collisions in LL21 were recorded in 3 council areas. Denbighshire has 1,283 of 1,913 (67%).

Collisions in LL21 by council area, 1979 to 2025
RankCouncil areaCollisionsCasualtiesFatalSerious
1stDenbighshire1,2832,23243311
2ndConwy48485618139
3rdGwynedd145246836