He entered Hospice care more than a year ago. He is still around . His grandson Jason announced yesterday that this is coming to an end.

"My grandfather is doing okay. He has been in hospice, as you know, for almost a year and a half now, and he really is, I think, coming to the end," ...."I’ve said before, there’s a part of this faith journey that is so important to him, and there’s a part of that faith journey that you only can live at the very end and I think he has been there in that space."

Jimmy Carter’s grandson says he is ‘coming to the end’ after more than a year in hospice care | The Hill