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CrashStats

LL66 road accidents: crash map and statistics

Police recorded 38 road traffic collisions in the LL66 postcode district, Isle of Anglesey, from 1979 to 2025, and 72 people were killed or injured in them. Of those collisions, 1 was fatal and 12 were serious.

The last recorded collision was on 14 March 2021.

Collisions since 1979
38
2,707th of 2,813 postcode districts, highest first
Casualties
72
1.89 per collision
Fatal collisions
1
1 person killed
Serious collisions
12
19 seriously injured
Last recorded collision
14 Mar 2021
Busiest year
1980
4 collisions

Road collision statistics for LL66

Collisions by severity, 1979 to 2025

  • Fatal12.6%
  • Serious1232%
  • Slight2566%

What the data shows

  • The busiest three hours of the day in LL66 are between 9pm and midnight, with 21% of collisions.
  • 9 children under 16 were killed or injured in LL66, 13% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 47% of collisions in LL66.

Where LL66 ranks among 2,813 postcode districts

Most collisions
2,707th
Most casualties
2,691st
Most fatal collisions
2,673rd
Most serious collisions
2,690th

Collisions by day of the week

  • Monday2 (5.3%)
  • Tuesday3 (7.9%)
  • Wednesday4 (11%)
  • Thursday4 (11%)
  • Friday10 (26%)
  • Saturday9 (24%)
  • Sunday6 (16%)

Light conditions

  • Daylight23 (61%)
  • Dark, no street lighting14 (37%)
  • Dark, street lights lit1 (2.6%)

Type of road

  • Single carriageway37 (97%)
  • Not recorded1 (2.6%)

Speed limit at the scene

  • 40 mph1 (2.6%)
  • 60 mph31 (82%)
  • 70 mph6 (16%)

Weather at the time

  • Fine, no high winds29 (76%)
  • Raining, no high winds5 (13%)
  • Fine with high winds1 (2.6%)
  • Fog or mist1 (2.6%)
  • Snowing with high winds1 (2.6%)
  • Not recorded1 (2.6%)

Who was hurt

  • Car occupant52 (72%)
  • Motorcyclist9 (13%)
  • Van occupant9 (13%)
  • Pedestrian2 (2.8%)

Source: Department for Transport, STATS19 road safety data

LL66 road accidents by year

Collisions and casualties in LL66, 1979 to 2025

Collisions in LL66 peaked at 4 in 1980; none were recorded in 2025.

  • Collisions
  • Collisions in 2025
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202500
202400
202300
202200
202113
202000
201914
201800
201712
201600
201500
201400
201300
201211
201111
201000
200911
200800
200712
200624
200512
200411
200300
200200
200100
200011
199900
199800
199700
199613
199511
199411
199313
199213
199111
199011
198900
198823
198723
198611
198515
198422
1983312
198212
198112
198044
197923

Map of recent crashes in LL66

Map of the 24 most recent crashes in LL66

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 LL66

The 24 most recent collisions in LL66 happened between 26 August 1986 and 14 March 2021.

Severity

Council area for LL66

LL66 is on the Isle of Anglesey, where police recorded 8,053 collisions from 1979 to 2025. LL66 accounts for 0.5% of them.