La Crescenta-Montrose is a census-designated place (CDP) and an Unincorporated community in Los Angeles County, California, encompassing those parts of the Crescenta Valley not in the cities of Glendale or La Cañada Flintridge.
La Crescenta-Montrose includes both a census-designated place (CDP) and an Unincorporated community in Los Angeles County, California. The unincorporated part encompasses those parts of the Crescenta Valley and northwestern San Rafael Hills not in the cities of Glendale or La Cañada Flintridge.