Caernarfon road traffic accidents
Caernarfon recorded 312 collisions in the STATS19 data between 1999 and 2025, involving 408 casualties. Of these collisions, 3 were fatal and 46 were serious. Recorded collisions in 2025 were down 33% on 2024.
Severity Breakdown
- Fatal
- 3
- Serious
- 46
- Casualties
- 408
- Fatal
- 3
- Serious
- 46
- Casualties
- 408
Collisions by Year
Areas covering Caernarfon
Roads in Caernarfon
Postcode districts in Caernarfon
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in Caernarfon
Road collision statistics for Caernarfon
Collisions recorded
312
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
408
Casualties recorded across every collision in this area.
Fatal collisions
3
Collisions in which at least one person died.
Serious collisions
46
15.7% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in Caernarfon
Collisions in Caernarfon are most frequently recorded on a Wednesday (17.3% of the total), with 17% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
68.9% of recorded collisions in Caernarfon happen on a single carriageway. Around 19.2% were recorded in adverse weather such as rain, snow or fog.
The collisions in Caernarfon have produced 408 casualties. Pedestrians account for 30.9% of those casualties, a marker of the risk to people on foot here.
Collisions by day of the week
Collisions by day of the week: Sunday 30 collisions, Monday 46 collisions, Tuesday 48 collisions, Wednesday 54 collisions, Thursday 42 collisions, Friday 48 collisions, Saturday 44 collisions.
Light conditions
Light conditions: Daylight 259 collisions, Darkness 53 collisions.
Road type
Road type: Single carriageway 215 collisions, One way street 47 collisions, Roundabout 29 collisions, One way street/Slip road 11 collisions, Unknown 7 collisions, Dual carriageway 3 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 12 collisions, 30 mph 279 collisions, 40 mph 13 collisions, 60 mph 8 collisions.
Weather at the time
Weather at the time: Fine no high winds 252 collisions, Raining no high winds 31 collisions, Raining + high winds 9 collisions, Other 8 collisions, Unknown 7 collisions.
Who was hurt
Who was hurt: Driver or rider 173 casualties, Passenger 109 casualties, Pedestrian 126 casualties.
Move Insights
Thinking of moving to this area?
Check flood risk, planning history, EPC ratings and more with a Move Insights property report.
Recent Accidents
Showing 20 of 312 accidents
Accident 202560C179535
SeriousAccident 202560C168797
SlightAccident 202560C034278
SlightAccident 202560C008675
SlightAccident 202460Q189260
SeriousAccident 202460Q154180
SlightAccident 202460Q147758
SlightAccident 202460Q137553
SlightAccident 202460Q025289
SeriousAccident 202460Q001326
SlightAccident 202360A161936
SeriousAccident 202360A140739
SeriousAccident 202360A108330
SeriousAccident 202360A053606
SeriousAccident 202360A007926
SlightAccident 202260B121568
SlightAccident 202260B090115
SeriousAccident 202260B066677
SlightAccident 202260B042399
SlightAccident 202160Z056456
SlightFrequently asked questions about road accidents in Caernarfon
How many road accidents have there been in Caernarfon?
312 collisions have been recorded in Caernarfon in the STATS19 road safety data between 1999 and 2025, involving 408 casualties.
How many of the collisions in Caernarfon were serious or fatal?
3 were fatal and 46 were serious — 15.7% of all recorded collisions in Caernarfon resulted in a death or serious injury.
When do most road accidents happen in Caernarfon?
Wednesday is the most common day for collisions in Caernarfon, accounting for 17.3% of them, and 17% of all collisions here happen in darkness.
What kind of roads do collisions in Caernarfon happen on?
68.9% of collisions in Caernarfon are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in Caernarfon?
Pedestrians make up 30.9% of the 408 casualties recorded in Caernarfon.
Is road safety in Caernarfon getting better or worse?
Recorded collisions in Caernarfon fell 33% in 2025 compared with 2024, though year-on-year figures move with both genuine risk and changes in reporting.
Where does the road accident data for Caernarfon come from?
It comes from STATS19, the official record of personal-injury road collisions reported to the police and published by the Department for Transport. The figures for Caernarfon cover 1999 to 2025.