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CrashStats

LL63 road accidents: crash map and statistics

Police recorded 173 road traffic collisions in the LL63 postcode district, Isle of Anglesey, from 1979 to 2025, and 251 people were killed or injured in them. Of those collisions, 4 were fatal and 44 were serious.

In 2025 police recorded 1 collision, the same number as in 2024.

Collisions since 1979
173
2,589th of 2,813 postcode districts, highest first
Casualties
251
1.45 per collision
Fatal collisions
4
4 people killed
Serious collisions
44
54 seriously injured
Collisions in 2025
1
1 in 2024
Casualties in 2025
1
1 in 2024

Road collision statistics for LL63

Collisions by severity, 1979 to 2025

  • Fatal42.3%
  • Serious4425%
  • Slight12572%

What the data shows

  • LL63 had 15 collisions from 2016 to 2025, 56% fewer than the 34 from 2006 to 2015.
  • 28% of collisions in LL63 were fatal or serious, against 20% across Great Britain.
  • 26 children under 16 were killed or injured in LL63, 10% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 32% of collisions in LL63.

Where LL63 ranks among 2,813 postcode districts

Most collisions
2,589th
Most casualties
2,592nd
Most fatal collisions
2,573rd
Most serious collisions
2,595th

Collisions by day of the week

  • Monday27 (16%)
  • Tuesday17 (9.8%)
  • Wednesday19 (11%)
  • Thursday18 (10%)
  • Friday36 (21%)
  • Saturday33 (19%)
  • Sunday23 (13%)

Light conditions

  • Daylight115 (66%)
  • Dark, no street lighting44 (25%)
  • Dark, street lights lit8 (4.6%)
  • Dark, lighting unknown6 (3.5%)

Type of road

  • Single carriageway167 (97%)
  • Dual carriageway3 (1.7%)
  • Not recorded3 (1.7%)

Speed limit at the scene

  • 30 mph26 (15%)
  • 40 mph18 (10%)
  • 50 mph13 (7.5%)
  • 60 mph104 (60%)
  • 70 mph12 (6.9%)

Weather at the time

  • Fine, no high winds129 (75%)
  • Raining, no high winds17 (9.8%)
  • Fine with high winds11 (6.4%)
  • Fog or mist2 (1.2%)
  • Raining with high winds2 (1.2%)
  • Other9 (5.2%)
  • Not recorded3 (1.7%)

Who was hurt

  • Car occupant186 (74%)
  • Motorcyclist22 (8.8%)
  • Pedestrian19 (7.6%)
  • Cyclist13 (5.2%)
  • Van occupant5 (2%)
  • Minibus occupant3 (1.2%)
  • Other vehicle occupant2 (0.8%)
  • Bus or coach occupant1 (0.4%)

Source: Department for Transport, STATS19 road safety data

LL63 road accidents by year

Collisions and casualties in LL63, 1979 to 2025

Collisions in LL63 peaked at 8 in 2001; 2025 had 1.

  • Collisions
  • Collisions in 2025: 1
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202511
202411
202311
202211
202100
202000
201923
201800
201758
201644
201523
201455
201345
201269
201111
201033
200957
200835
200712
200649
200548
200422
200337
2002510
2001810
200033
1999815
1998812
199745
199623
199578
199423
199358
199257
199135
199089
198934
198825
198713
198611
198535
198469
198366
198256
198179
198068
1979712

Map of recent crashes in LL63

Map of the 24 most recent crashes in LL63

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 LL63

The 24 most recent collisions in LL63 happened between 8 July 2013 and 16 July 2025.

Severity

Crashes by road in LL63

The A4080 has the most collisions in LL63, 114 of 173 (66%), followed by the A5 (13).

Collisions in LL63 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA4080114162130
2ndA5132515

Council area for LL63

LL63 is on the Isle of Anglesey, where police recorded 8,053 collisions from 1979 to 2025. LL63 accounts for 2.1% of them.