Glendola is an unincorporated community located within Wall Township in Monmouth County, in the U.S. state of New Jersey. It is the location of the Glendola Reservoir. Most of the area consists of single-family residences along numerous streets throughout the settlement. The main east–west road through Glendola is Belmar Boulevard while access to the near…Glendola is an unincorporated community located within Wall Township in Monmouth County, in the U.S. state of New Jersey. It is the location of the Glendola Reservoir. Most of the area consists of single-family residences along numerous streets throughout the settlement. The main east–west road through Glendola is Belmar Boulevard while access to the nearby Route 18 freeway is provided via Brighton Avenue.