Somis is an unincorporated community in Ventura County, California. It was established in 1892 by Thomas Bard and D.T. Perkins on a portion of the Rancho Las Posas Mexican land grant. Somis is in the Las Posas Valley on the south bank of Fox Barranca, just west of Arroyo Las Posas. For statistical purposes, the United States Census Bureau has defineā¦
Somis is an unincorporated community in Ventura County, California. It was established in 1892 by Thomas Bard and D.T. Perkins on a portion of the Rancho Las Posas Mexican land grant. Somis is in the Las Posas Valley on the south bank of Fox Barranca, just west of Arroyo Las Posas. For statistical purposes, the United States Census Bureau has defined Somis as a census-designated place.