Del Rosa is a neighborhood community in the city of San Bernardino, California. Del Rosa is derived from a Spanish phrase meaning "of the rose". Del Rosa is located 5.4 miles northeast of downtown San Bernardino in San Bernardino County, California. The coordinates are 34.853N, -117.13W, and the elevation is 1,321 feet, and it is in the P…Del Rosa is a neighborhood community in the city of San Bernardino, California. Del Rosa is derived from a Spanish phrase meaning "of the rose". Del Rosa is located 5.4 miles northeast of downtown San Bernardino in San Bernardino County, California. The coordinates are 34.853N, -117.13W, and the elevation is 1,321 feet, and it is in the Pacific Time Zone.