The Hashira who survive till the end of Demon Slayer are:

• Giyu Tomioka, the Water Hashira
• Sanemi Shinazugawa, the Wind Hashira
• Tengen Uzui, the Sound Hashira
• Sakonji Urokodaki (former Hashira and mentor to Tanjiro)

Most other Hashira, including Gyomei Himejima (Stone), Mitsuri Kanroji (Love), Obanai Iguro (Serpent), and Muichiro Tokito (Mist), die during the final battles against Muzan and the Upper Rank demons. Some deaths, like Obanai and Mitsuri's, happen in the last battle, while Gyomei dies from injuries sustained. Giyu and Sanemi survive the final fight but are likely to die before age 25 due to the fatal consequences of manifesting the Demon Slayer Mark. Tengen Uzui notably also survives and presumably lives a peaceful life after the demon threat is eliminated. At the end, the Demon Slayer Corps disbands as demons are gone from the world.