| Administrator(s) | England and Wales Cricket Board |
|---|---|
| Cricket format | 50 over |
| Tournament format(s) | League system |
| Champions | Sussex (2nd title) |
| Participants | 24 |
| Most runs | Charlotte Edwards (308) |
| Most wickets | Heather Booth (12) |
The 2004 Women's County One-Day Championship was the 8th cricket Women's County Championship season. It ran from May to August and saw 23 county teams plus Wales compete in a series of divisions. Sussex Women won the County Championship as winners of the top division, their second title in two years.