 According to the United States Census Bureau, the La Crescenta-Montrose CDP measures about , and the population was 19,653 at the 2010 census, up from 18,532 in the 2000 census.La Crescenta-Montrose encompasses those parts of the Crescenta Valley, northwestern San Rafael Hills, and northeastern Verdugo Mountains not within the cities of Glendale or La Cañada Flintridge.La Crescenta-Montrose is bordered on the north by the San Gabriel Mountains and Angeles National Forest, on the east by La Cañada Flintridge, on the south by the Verdugo Mountains and central Glendale, and the northwest by the Sunland-Tujunga community of Los Angeles.