The Ogdensburg Public Library is rumored to be haunted, with reports of apparitions and other unusual experiences. The building was originally a residential mansion, and supernatural sightings have been associated with its history. While specific, detailed accounts of paranormal activity are not widely documented, reports of hauntings generally include: Ghostly figures have been reportedly seen inside the former mansion. Visitors and staff have described odd occurrences, such as unexplained noises or a feeling of being watched. The library is a designated "haunted spot" in St. Lawrence County, which suggests the rumors are prevalent in the local area. Similar to many other old buildings converted for public use, the library's past as a private residence likely contributes to the folklore surrounding its alleged haunting.