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CrashStats

Carmarthen road accidents: crash map and statistics

Police recorded 1,433 road traffic collisions in Carmarthen, Carmarthenshire, from 1979 to 2025, and 1,814 people were killed or injured in them. Of those collisions, 14 were fatal and 330 were serious.

In 2025 police recorded 20 collisions, up from 18 in 2024.

Collisions since 1979
1,433
589th highest of 2,851 towns
Casualties
1,814
1.27 per collision
Fatal collisions
14
14 people killed
Serious collisions
330
386 seriously injured
Collisions in 2025
20
18 in 2024
Casualties in 2025
26
Up 24% on 2024

Road collision statistics for Carmarthen

Collisions by severity, 1979 to 2025

  • Fatal141%
  • Serious33023%
  • Slight1,08976%

What the data shows

  • Carmarthen had 170 collisions from 2016 to 2025, 36% fewer than the 264 from 2006 to 2015.
  • 24% of collisions in Carmarthen were fatal or serious, against 20% across Great Britain.
  • 288 children under 16 were killed or injured in Carmarthen, 16% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 33% of collisions in Carmarthen.

Where Carmarthen ranks among 2,851 towns

Most collisions
589th
Most casualties
586th
Most fatal collisions
669th
Most serious collisions
465th

Collisions by day of the week

  • Monday219 (15%)
  • Tuesday197 (14%)
  • Wednesday237 (17%)
  • Thursday201 (14%)
  • Friday233 (16%)
  • Saturday221 (15%)
  • Sunday125 (8.7%)

Light conditions

  • Daylight1,094 (76%)
  • Dark, street lights lit299 (21%)
  • Dark, no street lighting12 (0.8%)
  • Dark, lighting unknown10 (0.7%)
  • Dark, street lights unlit10 (0.7%)
  • Not recorded8 (0.6%)

Type of road

  • Single carriageway1,069 (75%)
  • One way street or slip road151 (11%)
  • Roundabout135 (9.4%)
  • Dual carriageway63 (4.4%)
  • Not recorded15 (1%)

Speed limit at the scene

  • 20 mph40 (2.8%)
  • 30 mph1,228 (86%)
  • 40 mph63 (4.4%)
  • 50 mph4 (0.3%)
  • 60 mph51 (3.6%)
  • 70 mph46 (3.2%)
  • Not recorded1 (0.1%)

Weather at the time

  • Fine, no high winds1,085 (76%)
  • Raining, no high winds207 (14%)
  • Raining with high winds32 (2.2%)
  • Fine with high winds16 (1.1%)
  • Fog or mist8 (0.6%)
  • Snowing, no high winds3 (0.2%)
  • Other55 (3.8%)
  • Not recorded27 (1.9%)

Who was hurt

  • Car occupant932 (51%)
  • Pedestrian504 (28%)
  • Motorcyclist189 (10%)
  • Cyclist106 (5.8%)
  • Van occupant20 (1.1%)
  • Bus or coach occupant17 (0.9%)
  • Goods vehicle occupant (over 3.5 tonnes)17 (0.9%)
  • Taxi or private hire car occupant13 (0.7%)
  • Other vehicle occupant9 (0.5%)
  • Minibus occupant6 (0.3%)
  • Other1 (0.1%)

Source: Department for Transport, STATS19 road safety data

Carmarthen road accidents by year

Collisions and casualties in Carmarthen, 1979 to 2025

Collisions in Carmarthen peaked at 56 in 1989; 2025 had 20.

  • Collisions
  • Collisions in 2025: 20
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20252026
20241821
20231920
20221921
20211419
20201414
20191524
20181518
20171620
20162023
20151823
20141721
20132229
20122728
20112232
20102940
20092731
20082735
20073854
20063746
20052537
20042834
20032534
20022838
20013552
20003448
19992935
19984967
19973851
19963441
19953951
19944961
19934554
19923543
19914249
19904554
19895661
19883246
19872629
19863241
19853337
19844353
19833847
19823752
19813544
19803854
19794956

Map of recent crashes in Carmarthen

Map of the 24 most recent crashes in Carmarthen

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

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in Carmarthen

The 24 most recent collisions in Carmarthen happened between 13 July 2024 and 25 December 2025.

Severity

Crashes by road in Carmarthen

The A40 has the most collisions in Carmarthen, 265 of 1,433 (18%), followed by the B4312 (155).

Collisions in Carmarthen on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA40265348463
2ndB4312155233430
3rdA484114147023
4thA4213109122130
5thA48487515
6thA41164548012
7thA485324206
8thB4300182900
9thA42074402
10thA43123501

Council area for Carmarthen

Carmarthen is in Carmarthenshire, where police recorded 25,619 collisions from 1979 to 2025. Carmarthen accounts for 5.6% of them.

Postcode district for Carmarthen

All 1,433 collisions in Carmarthen were in the SA31 postcode district.