StadiumVicarage Road
| Current capacity of the stadium |
| Standing | 40,500 |
| Seats | 30,800 |
| Tribune | 27,700 |
| Seats for sponsors | 20,300 |
| Fans attended |
| 02/07/2020 | Watford F.C.-Stevenage F.C. | 18,586 |
| 01/07/2020 | Watford F.C.-Manchester United FC™ | 4,719 |
| 01/07/2020 | Watford F.C.-Grenoble Foot 38 | 4,940 |
| 01/07/2020 | Watford F.C.-Filiano | 4,828 |
| 30/06/2020 | Watford F.C.-Bohemians Dejvice | 4,779 |
| 30/06/2020 | Watford F.C.-FK Chempetrol Litvínov | 4,763 |
| 30/06/2020 | Watford F.C.-Planá | 4,843 |
| 28/06/2020 | Watford F.C.-Łask | 4,861 |
| 28/06/2020 | Watford F.C.-Manchester United FC™ | 4,735 |
