Tsuchikage: Suzemebachi (About halfway through her reign. Age: 38)
Mizukage: Mei (Nearing the end of her reign. Age: 50)
Hokage: Naruto Uzumaki (About halfway through his reign. Age: 36)
Raikage: Darui (Near the end of his reign. Age: 45)
Kazekage: Gaara (About halfway through his reign. Age: 36)