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CrashStats

LL77 road accidents: crash map and statistics

Police recorded 983 road traffic collisions in the LL77 postcode district, Isle of Anglesey, from 1979 to 2025, and 1,460 people were killed or injured in them. Of those collisions, 24 were fatal and 217 were serious.

In 2025 police recorded 5 collisions, down from 6 in 2024.

Collisions since 1979
983
2,213th of 2,813 postcode districts, highest first
Casualties
1,460
1.49 per collision
Fatal collisions
24
25 people killed
Serious collisions
217
289 seriously injured
Collisions in 2025
5
6 in 2024
Casualties in 2025
5
7 in 2024

Road collision statistics for LL77

Collisions by severity, 1979 to 2025

  • Fatal242.4%
  • Serious21722%
  • Slight74275%

What the data shows

  • LL77 had 80 collisions from 2016 to 2025, 50% fewer than the 159 from 2006 to 2015.
  • 25% of collisions in LL77 were fatal or serious, against 20% across Great Britain.
  • 189 children under 16 were killed or injured in LL77, 13% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 44% of collisions in LL77.

Where LL77 ranks among 2,813 postcode districts

Most collisions
2,213th
Most casualties
2,178th
Most fatal collisions
2,033rd
Most serious collisions
2,193rd

Collisions by day of the week

  • Monday159 (16%)
  • Tuesday124 (13%)
  • Wednesday138 (14%)
  • Thursday148 (15%)
  • Friday158 (16%)
  • Saturday145 (15%)
  • Sunday111 (11%)

Light conditions

  • Daylight718 (73%)
  • Dark, no street lighting157 (16%)
  • Dark, street lights lit95 (9.7%)
  • Dark, lighting unknown9 (0.9%)
  • Dark, street lights unlit4 (0.4%)

Type of road

  • Single carriageway893 (91%)
  • One way street or slip road40 (4.1%)
  • Dual carriageway27 (2.7%)
  • Roundabout13 (1.3%)
  • Not recorded10 (1%)

Speed limit at the scene

  • 10 mph1 (0.1%)
  • 20 mph6 (0.6%)
  • 30 mph382 (39%)
  • 40 mph63 (6.4%)
  • 50 mph12 (1.2%)
  • 60 mph459 (47%)
  • 70 mph60 (6.1%)

Weather at the time

  • Fine, no high winds685 (70%)
  • Raining, no high winds184 (19%)
  • Raining with high winds33 (3.4%)
  • Fine with high winds24 (2.4%)
  • Snowing, no high winds6 (0.6%)
  • Fog or mist4 (0.4%)
  • Snowing with high winds1 (0.1%)
  • Other37 (3.8%)
  • Not recorded9 (0.9%)

Who was hurt

  • Car occupant1,030 (71%)
  • Pedestrian169 (12%)
  • Motorcyclist112 (7.7%)
  • Van occupant45 (3.1%)
  • Cyclist42 (2.9%)
  • Bus or coach occupant24 (1.6%)
  • Goods vehicle occupant (over 3.5 tonnes)19 (1.3%)
  • Minibus occupant8 (0.5%)
  • Other vehicle occupant8 (0.5%)
  • Taxi or private hire car occupant2 (0.1%)
  • Other1 (0.1%)

Source: Department for Transport, STATS19 road safety data

LL77 road accidents by year

Collisions and casualties in LL77, 1979 to 2025

Collisions in LL77 peaked at 41 in 1992; 2025 had 5.

  • Collisions
  • Collisions in 2025: 5
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202555
202467
202377
202269
20211019
202055
201956
20181218
20171016
20161423
20151118
20141324
20131415
20121822
20111519
20101623
20092634
20081517
20071722
20061416
20051928
20041722
20031725
20022838
20012533
20001635
19992637
19982943
19972130
19962338
19952841
19942738
19932841
19924166
19913953
19902851
19892437
19883349
19872434
19863667
19853040
19842759
19832633
19823553
19813354
19803751
19792739

Map of recent crashes in LL77

Map of the 24 most recent crashes in LL77

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

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in LL77

The 24 most recent collisions in LL77 happened between 13 February 2022 and 14 September 2025.

Severity

Crashes by road in LL77

The A5 has the most collisions in LL77, 248 of 983 (25%), followed by the B5109 (221).

Collisions in LL77 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA52484371158
2ndB5109221285246
3rdB511176119317
4thB511072113121
5thB54206594113
6thA5114567919
7thB4422275606
8thA55213222

Council area for LL77

LL77 is on the Isle of Anglesey, where police recorded 8,053 collisions from 1979 to 2025. LL77 accounts for 12% of them.

Town in LL77

Of the 983 collisions in LL77, 324 (33%) were in Llangefni.