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CrashStats

LL48 road accidents: crash map and statistics

Police recorded 345 road traffic collisions in the LL48 postcode district, Gwynedd, from 1979 to 2025, and 541 people were killed or injured in them. Of those collisions, 11 were fatal and 96 were serious.

In 2025 police recorded 2 collisions, up from 1 in 2024.

Collisions since 1979
345
2,495th of 2,813 postcode districts, highest first
Casualties
541
1.57 per collision
Fatal collisions
11
18 people killed
Serious collisions
96
124 seriously injured
Collisions in 2025
2
1 in 2024
Casualties in 2025
3
1 in 2024

Road collision statistics for LL48

Collisions by severity, 1979 to 2025

  • Fatal113.2%
  • Serious9628%
  • Slight23869%

What the data shows

  • LL48 had 35 collisions from 2016 to 2025, 43% fewer than the 61 from 2006 to 2015.
  • 31% of collisions in LL48 were fatal or serious, against 20% across Great Britain.
  • 62 children under 16 were killed or injured in LL48, 11% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 45% of collisions in LL48.

Where LL48 ranks among 2,813 postcode districts

Most collisions
2,495th
Most casualties
2,478th
Most fatal collisions
2,396th
Most serious collisions
2,468th

Collisions by day of the week

  • Monday37 (11%)
  • Tuesday44 (13%)
  • Wednesday42 (12%)
  • Thursday57 (17%)
  • Friday57 (17%)
  • Saturday56 (16%)
  • Sunday52 (15%)

Light conditions

  • Daylight258 (75%)
  • Dark, no street lighting52 (15%)
  • Dark, street lights lit30 (8.7%)
  • Dark, lighting unknown3 (0.9%)
  • Dark, street lights unlit2 (0.6%)

Type of road

  • Single carriageway332 (96%)
  • Dual carriageway6 (1.7%)
  • One way street or slip road5 (1.4%)
  • Roundabout1 (0.3%)
  • Not recorded1 (0.3%)

Speed limit at the scene

  • 20 mph1 (0.3%)
  • 30 mph147 (43%)
  • 40 mph32 (9.3%)
  • 60 mph154 (45%)
  • 70 mph11 (3.2%)

Weather at the time

  • Fine, no high winds245 (71%)
  • Raining, no high winds66 (19%)
  • Raining with high winds6 (1.7%)
  • Snowing, no high winds4 (1.2%)
  • Fine with high winds3 (0.9%)
  • Fog or mist2 (0.6%)
  • Other18 (5.2%)
  • Not recorded1 (0.3%)

Who was hurt

  • Car occupant376 (70%)
  • Pedestrian63 (12%)
  • Motorcyclist43 (7.9%)
  • Cyclist24 (4.4%)
  • Van occupant12 (2.2%)
  • Goods vehicle occupant (over 3.5 tonnes)7 (1.3%)
  • Minibus occupant7 (1.3%)
  • Bus or coach occupant6 (1.1%)
  • Other vehicle occupant3 (0.6%)

Source: Department for Transport, STATS19 road safety data

LL48 road accidents by year

Collisions and casualties in LL48, 1979 to 2025

Collisions in LL48 peaked at 20 in 1981; 2025 had 2.

  • Collisions
  • Collisions in 2025: 2
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202523
202411
202336
202244
202133
202057
201945
201834
201744
201669
2015611
201457
2013812
2012712
201148
201069
200988
200856
2007713
200656
2005611
20041421
2003612
2002615
200169
200045
19991217
1998711
19971217
1996611
1995915
199457
19931115
199279
19911220
19901116
19891322
198868
19871015
198645
198559
19841116
19831115
19821419
19812039
19801120
19791024

Map of recent crashes in LL48

Map of the 24 most recent crashes in LL48

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 LL48

The 24 most recent collisions in LL48 happened between 29 August 2018 and 20 December 2025.

Severity

Crashes by road in LL48

The A487 has the most collisions in LL48, 228 of 345 (66%), followed by the A4085 (38).

Collisions in LL48 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA487228380663
2ndA40853848311
3rdA49781103
4thA4964802

Council area for LL48

LL48 is in Gwynedd, where police recorded 16,819 collisions from 1979 to 2025. LL48 accounts for 2.1% of them.

Town in LL48

Of the 345 collisions in LL48, 133 (39%) were in Penrhyndeudraeth.