Skip to main content
CrashStats

LL57 road accidents: crash map and statistics

Police recorded 3,557 road traffic collisions in the LL57 postcode district, Gwynedd, from 1979 to 2025, and 5,126 people were killed or injured in them. Of those collisions, 68 were fatal and 729 were serious.

In 2025 police recorded 26 collisions, up from 19 in 2024.

Collisions since 1979
3,557
1,059th highest of 2,813 postcode districts
Casualties
5,126
1.44 per collision
Fatal collisions
68
72 people killed
Serious collisions
729
922 seriously injured
Collisions in 2025
26
19 in 2024
Casualties in 2025
45
Up 67% on 2024

Road collision statistics for LL57

Collisions by severity, 1979 to 2025

  • Fatal681.9%
  • Serious72920%
  • Slight2,76078%

What the data shows

  • LL57 had 296 collisions from 2016 to 2025, 52% fewer than the 617 from 2006 to 2015.
  • 22% of collisions in LL57 were fatal or serious, against 20% across Great Britain.
  • 714 children under 16 were killed or injured in LL57, 14% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 43% of collisions in LL57.

Where LL57 ranks among 2,813 postcode districts

Most collisions
1,059th
Most casualties
956th
Most fatal collisions
734th
Most serious collisions
895th

Collisions by day of the week

  • Monday480 (13%)
  • Tuesday530 (15%)
  • Wednesday518 (15%)
  • Thursday516 (15%)
  • Friday610 (17%)
  • Saturday535 (15%)
  • Sunday368 (10%)

Light conditions

  • Daylight2,575 (72%)
  • Dark, street lights lit629 (18%)
  • Dark, no street lighting291 (8.2%)
  • Dark, lighting unknown41 (1.2%)
  • Dark, street lights unlit21 (0.6%)

Type of road

  • Single carriageway2,866 (81%)
  • Dual carriageway296 (8.3%)
  • Roundabout220 (6.2%)
  • One way street or slip road151 (4.2%)
  • Not recorded24 (0.7%)

Speed limit at the scene

  • 15 mph2 (0.1%)
  • 20 mph23 (0.6%)
  • 30 mph1,930 (54%)
  • 40 mph158 (4.4%)
  • 50 mph47 (1.3%)
  • 60 mph1,124 (32%)
  • 70 mph273 (7.7%)

Weather at the time

  • Fine, no high winds2,464 (69%)
  • Raining, no high winds631 (18%)
  • Raining with high winds161 (4.5%)
  • Fine with high winds83 (2.3%)
  • Snowing, no high winds22 (0.6%)
  • Snowing with high winds14 (0.4%)
  • Fog or mist4 (0.1%)
  • Other134 (3.8%)
  • Not recorded44 (1.2%)

Who was hurt

  • Car occupant3,136 (61%)
  • Pedestrian727 (14%)
  • Motorcyclist558 (11%)
  • Cyclist246 (4.8%)
  • Bus or coach occupant170 (3.3%)
  • Van occupant119 (2.3%)
  • Minibus occupant55 (1.1%)
  • Goods vehicle occupant (over 3.5 tonnes)47 (0.9%)
  • Taxi or private hire car occupant44 (0.9%)
  • Other vehicle occupant16 (0.3%)
  • Other8 (0.2%)

Source: Department for Transport, STATS19 road safety data

LL57 road accidents by year

Collisions and casualties in LL57, 1979 to 2025

Collisions in LL57 peaked at 186 in 1979; 2025 had 26.

  • Collisions
  • Collisions in 2025: 26
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20252645
20241927
20232731
20223850
20212026
20202731
20192738
20185077
20172944
20163341
20154865
20145275
20135985
20125377
20116586
20106693
20097096
20087089
20076184
200673109
20055682
200471108
20036791
200293140
200186115
2000101149
199987151
199884124
1997115168
199694135
199588182
1994111151
199391132
1992101142
199186111
1990104154
198999148
198888123
198789124
198694137
198576116
198489127
1983106131
1982136211
1981106150
1980140192
1979186263

Map of recent crashes in LL57

Map of the 24 most recent crashes in LL57

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 LL57

The 24 most recent collisions in LL57 happened between 30 January and 13 December 2025.

Severity

Crashes by road in LL57

The A5 has the most collisions in LL57, 898 of 3,557 (25%), followed by the A5122 (404).

Collisions in LL57 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA58981,40023221
2ndA5122404604770
3rdA4087331453656
4thA552253981134
5thA487168263325
6thB436687138028
7thA42445070112
8thB4409404608
9thB4547295007
10thB8048121204
11thA4080111701
12thB7577712
13thA7496701
14thA85802
15thA8035800
16thM735802
17thA894602
18thB7654511
19thA7243400
20thB8203301

Council areas covering LL57

Collisions in LL57 were recorded in 3 council areas. Gwynedd has 3,542 of 3,557 (99.6%).

Collisions in LL57 by council area, 1979 to 2025
RankCouncil areaCollisionsCasualtiesFatalSerious
1stGwynedd3,5425,10167724
2ndConwy81715
3rdIsle of Anglesey6700

Towns in LL57

Collisions in LL57 were recorded in 2 towns, led by Bangor (1,408) and Bethesda (163).