A single-user, gender-neutral restroom is now available on the 3rd floor of Hardin Library. It also includes a baby changing station. The new restroom is just around the corner from the elevator, in Room 309. Previously, this had been a staff-only restroom, so the transition to a public restroom required only changing the locks, adding signage, and installing the changing table.
A listing of all single-user, gender-neutral restrooms on campus can be found at https://maps.uiowa.edu/amenity/single-user-gender-inclusive-restrooms.