Geography Lower Allen is located in eastern Cumberland County, occupying the northeastern corner of Lower Allen Township at (40.227990, -76.902305). The CDP consists of several suburban neighborhoods in the Harrisburg area, including White Hill, Highland Park, Eberlys Mill, Cedar Cliff, and Allendale. Neighboring communities are the boroughs of Camp Hill and Lemoyne to the north and the borough of New Cumberland to the east. The remainder of Lower Allen Township is to the west and southwest. Yellow Breeches Creek forms part of the southern boundary of the CDP, across which is Fairview Township in York County.
Geography Lower Allen is located in eastern Cumberland County occupying the northeastern corner of Lower Allen Township at (40.227990, -76.902305). The CDP consists of several suburban neighborhoods in the Harrisburg area, including White Hill, Highland Park, Eberlys Mill, Cedar Cliff, and Allendale. Neighboring communities are the boroughs of Camp Hill and Lemoyne to the north and the borough of New Cumberland to the east. The remainder of Lower Allen Township is to the west and southwest. Yellow Breeches Creek forms part of the southern boun,dary of the CDP, across which is Fairview Township in York County.