Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 8 Jan 2004 | Isle of Anglesey | 1 | 1 | Slight |
| Sat 14 Feb 2004 | Isle of Anglesey | 2 | 3 | Slight |
| Mon 23 Feb 2004 | Isle of Anglesey | 3 | 2 | Slight |
| Fri 27 Aug 2004 | Isle of Anglesey | 1 | 1 | Slight |
| Sun 12 Sep 2004 | Isle of Anglesey | 2 | 1 | Slight |
| Thu 16 Sep 2004 | Isle of Anglesey | 4 | 2 | Slight |
| Fri 8 Oct 2004 | Isle of Anglesey | 2 | 1 | Slight |
| Thu 21 Oct 2004 | Isle of Anglesey | 1 | 1 | Slight |
| Wed 10 Nov 2004 | Isle of Anglesey | 1 | 1 | Slight |
| Sat 11 Dec 2004 | Isle of Anglesey | 2 | 2 | Slight |