Données ARCOM - Mise à jour : juin 2026
| Radio | Frequence | Réception | Département | Agglomération |
| FRANCE CULTURE - Courtalain ▶ | 98.1 | 5/5 | 28 - Eure-et-loir | CHARTRES MONTLANDON |
| FRANCE INTER - Courtalain ▶ | 92.6 | 4/5 | 72 - Sarthe | LE MANS |
| FRANCE INTER - Courtalain ▶ | 94.6 | 5/5 | 28 - Eure-et-loir | CHARTRES MONTLANDON |
| FRANCE MUSIQUE - Courtalain ▶ | 89.7 | 5/5 | 28 - Eure-et-loir | CHARTRES MONTLANDON |
| FRANCE MUSIQUE - Courtalain ▶ | 97.0 | 4/5 | 72 - Sarthe | LE MANS |
| ICI ORLEANS - Courtalain | 100.9 | 1/5 | 45 - Loiret | ORLEANS TRAINOU |
| LA RADIO GRAND CIEL - Courtalain | 107.0 | 1/5 | 28 - Eure-et-loir | CHATEAUDUN |
| LA RADIO INTENSITE - Courtalain | 103.8 | 1/5 | 28 - Eure-et-loir | CHATEAUDUN |
| NOSTALGIE - Courtalain ▶ | 90.4 | 1/5 | 28 - Eure-et-loir | CHATEAUDUN |
| NRJ - Courtalain ▶ | 103.0 | 1/5 | 28 - Eure-et-loir | CHATEAUDUN |
| RMC - Courtalain ▶ | 107.5 | 5/5 | 28 - Eure-et-loir | CHATEAUDUN |
| VIBRATION - Courtalain | 101.7 | 1/5 | 28 - Eure-et-loir | CHATEAUDUN |
