Skip to main content
CrashStats

LL23 road accidents: crash map and statistics

Police recorded 999 road traffic collisions in the LL23 postcode district, Gwynedd, from 1979 to 2025, and 1,597 people were killed or injured in them. Of those collisions, 38 were fatal and 250 were serious.

In 2025 police recorded 7 collisions, up from 6 in 2024.

Collisions since 1979
999
2,202nd of 2,813 postcode districts, highest first
Casualties
1,597
1.60 per collision
Fatal collisions
38
42 people killed
Serious collisions
250
348 seriously injured
Collisions in 2025
7
6 in 2024
Casualties in 2025
9
8 in 2024

Road collision statistics for LL23

Collisions by severity, 1979 to 2025

  • Fatal383.8%
  • Serious25025%
  • Slight71171%

What the data shows

  • LL23 had 113 collisions from 2016 to 2025, 44% fewer than the 202 from 2006 to 2015.
  • 29% of collisions in LL23 were fatal or serious, against 20% across Great Britain.
  • 146 children under 16 were killed or injured in LL23, 9.1% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 41% of collisions in LL23.

Where LL23 ranks among 2,813 postcode districts

Most collisions
2,202nd
Most casualties
2,138th
Most fatal collisions
1,575th
Most serious collisions
2,132nd

Collisions by day of the week

  • Monday115 (12%)
  • Tuesday107 (11%)
  • Wednesday93 (9.3%)
  • Thursday112 (11%)
  • Friday155 (16%)
  • Saturday174 (17%)
  • Sunday243 (24%)

Light conditions

  • Daylight795 (80%)
  • Dark, no street lighting166 (17%)
  • Dark, street lights lit34 (3.4%)
  • Dark, lighting unknown4 (0.4%)

Type of road

  • Single carriageway989 (99%)
  • Dual carriageway4 (0.4%)
  • One way street or slip road3 (0.3%)
  • Not recorded3 (0.3%)

Speed limit at the scene

  • 20 mph4 (0.4%)
  • 30 mph161 (16%)
  • 40 mph14 (1.4%)
  • 50 mph5 (0.5%)
  • 60 mph761 (76%)
  • 70 mph54 (5.4%)

Weather at the time

  • Fine, no high winds719 (72%)
  • Raining, no high winds178 (18%)
  • Raining with high winds30 (3%)
  • Fine with high winds14 (1.4%)
  • Snowing, no high winds13 (1.3%)
  • Fog or mist3 (0.3%)
  • Other36 (3.6%)
  • Not recorded6 (0.6%)

Who was hurt

  • Car occupant1,150 (72%)
  • Motorcyclist229 (14%)
  • Pedestrian87 (5.4%)
  • Cyclist39 (2.4%)
  • Van occupant33 (2.1%)
  • Minibus occupant25 (1.6%)
  • Goods vehicle occupant (over 3.5 tonnes)18 (1.1%)
  • Other vehicle occupant9 (0.6%)
  • Bus or coach occupant3 (0.2%)
  • Goods vehicle occupant (weight unknown)3 (0.2%)
  • Other1 (0.1%)

Source: Department for Transport, STATS19 road safety data

LL23 road accidents by year

Collisions and casualties in LL23, 1979 to 2025

Collisions in LL23 peaked at 40 in 1988; 2025 had 7.

  • Collisions
  • Collisions in 2025: 7
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202579
202468
20231214
20221216
20211827
202055
20191523
20181319
20171320
20161216
20151213
20141618
20131725
20122441
20111825
20102741
20092028
20081723
20072432
20062743
20051617
20042944
20032750
20023451
20011424
20001521
19993252
19981113
19972233
19962432
19952649
19941935
19931936
19921721
19913567
19903358
19893563
19884068
19872433
19862131
19851934
19842548
19833053
19822861
19812948
19803568
19792541

Map of recent crashes in LL23

Map of the 24 most recent crashes in LL23

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 LL23

The 24 most recent collisions in LL23 happened between 7 February 2023 and 7 December 2025.

Severity

Crashes by road in LL23

The A494 has the most collisions in LL23, 502 of 999 (50%), followed by the A4212 (218).

Collisions in LL23 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA49450281824124
2ndA42122184071154
3rdB439199130133
4thB4401344506
5thB4501223102

Council area for LL23

LL23 is in Gwynedd, where police recorded 16,819 collisions from 1979 to 2025. LL23 accounts for 5.9% of them.

Town in LL23

Of the 999 collisions in LL23, 124 (12%) were in Y Bala.