Over 31 Acres of Flat Land in Llano, California. Just south of the California Aqueduct lies this large parcel of land with many possibilities. Llano (Spanish for "plain") is an unincorporated community located in Los Angeles County, California, United States, near the San Bernardino County line. History: The ruins of Llano del Rio are still extant along Highway 138 east of 165th Street East. The socialist community moved and Llano del Rio was abandoned in 1918, leaving behind the "ghost" of an alternative future for Los Angeles. Geography: Llano is located about 25 miles (40 km) southeast of Palmdale in the Antelope Valley portion of Southern California. The town of Pearblossom lies to the west, while the town of Pion Hills lies to the east. It is a few miles from the San Gabriel Mountains. Pearblossom Highway (as State Route 18), and Pearblossom Highway (as State Route 138) runs through the heart of Llano and is its 2 principal streets. Notable Residents: Aldous Huxley's (American Writer) former home, now Pearblossom Picture Ranch, a filming location. Carl Grillmair, astrophysicist and astronomer at Caltech. The last published population for Llano is 1,201 people.