A powder container includes a housing including a container chamber, a rotation member extending in an axial direction, and a sealing member. The housing includes a first wall portion having a first hole into which an end portion of the rotation member is inserted. The rotation member includes a second wall facing a part of the first wall portion around the first hole with a distance therebetween. The sealing member has a second hole through which the rotation member extends, is interposed between the part of the first wall portion around the first hole and the second wall portion, and includes a foam member that is contractible and a pair of sheet members respectively contacting the part of the first wall portion around the first hole and the second wall portion and having a friction coefficient lower than the foam member.