Maidsville is an unincorporated community in Monongalia County, West Virginia, United States. Maidsville is located along West Virginia Route 100, north-northwest of downtown Morgantown.
According to tradition, Maidsville was so named on account of there being a large share "old maids" among the first settlers.
Maidsville has a post office with ZIP code 26541. Near Maidsville is the Longview Power Plant, the cleanest, most efficient coal-fired power plant in the 13 state PJM Interconnection and one of the cleanest and most efficient in the United States.