| Club | Stadium | City | Capacity |
|---|---|---|---|
| CD Logroñés | Estadio Las Gaunasopened 2002 | Logroño152,150 people | 16,000 |
| Barakaldo | Estadio de Lasesarreopened 2003 | Barakaldo102,986 people | 7,960 |
| Conquense | Estadio La Fuensantaopened 1940 | Cuenca53,600 people | 6,700 |
| Real Unión | Stadium Galopened 1926 | Irun63,835 people | 6,344 |
| Toledo | Estadio Salto del Caballoopened 1973 | Toledo87,216 people | 5,300 |
| CF Talavera de la Reina | Estadi El Prado | Talavera de la Reina83,803 people | 4,200 |
| Athletic Bilbao B | Lezama Facilities | Bilbao351,124 people | 3,250 |
| Gernika Club | Complejo Deportivo Urbieta | Guernica17,129 people | 3,000 |
| Capacity not recorded yet | |||
| Amurrio Club | – | ||
| Aurrerá de Vitoria | – | ||
| Binéfar | – | ||
| Calahorra | – | ||
| CM Peralta | – | ||
| Deportivo Alavés B | Vitoria-Gasteiz260,699 people | – | |
| Deportivo Aragón | Ciudad Deportiva del Real Zaragozaopened 1974 | Zaragoza693,091 people | – |
| Gim. Torrelavega | – | ||
| Noja | – | ||
| Osasuna Promesas | Tajonar Facilities | Pamplona209,094 people | – |
| Peña Sport | Tafalla10,854 people | – | |
| Rayo Cantabria | – | ||
Sources: Wikipedia (CC BY-SA 4.0), API-Football · Data sources