Vicksburg is an unincorporated community and census-designated place in Blair County, Pennsylvania, United States. It was first listed as a CDP prior to the 2020 census. The CDP is in southern Blair County, in the southern corner of Blair Township. It is bordered to the northwest by the Morrisons Cove Branch of the former Pennsylvania Railroad and to the southeast by Reservoir Road, which leads south 0.6 miles to McKee and northeast 6 miles to Loop.