| Address: | Avenida Vicente López y Planes 3513, Santa Fé |
| Telephone: | (0342) 453-9429 |
| Fax: | (0342) 453-9949 |
| Founded: | 15-Apr-1907 |
| President: | Juan L. VEGA |
| Official website: | www.clubaunion.com.ar |
| E-mail: | futbolprofesionalcau@hotmail.com |
| Manager: |
| Name: | 15 de Abril |
| Capacity: | 22,853 |
| Primera A 2025 |
|
| 26-Sep-2025 | Primera A (10) | Banfield | 0-0 | Unión |
| 03-Oct-2025 | Primera A (11) | Unión | 0-2 | Aldosivi |
| 10-Oct-2025 | Primera A (12) | Central Córdoba (SE) | 3-1 | Unión |
| 21-Oct-2025 | Primera A (13) | Unión | 3-0 | Defensa y Justicia |
| 31-Oct-2025 | Primera A (14) | Newell's Old Boys | 0-1 | Unión |
| 08-Nov-2025 | Primera A (15) | Unión | 0-0 | Barracas Central |
| 17-Nov-2025 | Primera A (16) | Belgrano | 0-0 | Unión |
| 24-Nov-2025 | Primera A | Unión | 1-2 | Gimnasia (LP) |