California California Counties Regional Locations Alameda County Sandia National Laboratories Middle School Regional Science Bowl Alpine County Sandia/Las Positas Middle School Regional Science Bowl Amador County Sandia/Las Positas Middle School Regional Science Bowl Butte County Far Nor Cal Middle School Regional Science Bowl Calaveras County Sandia/Las Positas Middle School Regional Science Bowl Colusa County Sandia/Las Positas Middle School Regional Science Bowl Contra Costa County Sandia National Laboratories Middle School Regional Science Bowl Del Norte County Far Nor Cal Middle School Regional Science Bowl El Dorado County Sandia/Las Positas Middle School Regional Science Bowl Fresno County Fresno SHPE Middle School Regional Science Bowl Glenn County Far Nor Cal Middle School Regional Science Bowl Humboldt County Far Nor Cal Middle School Regional Science Bowl Imperial County Sandia/Las Positas Middle School Regional Science Bowl Inyo County Sandia/Las Positas Middle School Regional Science Bowl Kern County Fresno SHPE Middle School Regional Science Bowl Kings County Fresno SHPE Middle School Regional Science Bowl Lake County Far Nor Cal Middle School Regional Science Bowl Lassen County Far Nor Cal Middle School Regional Science Bowl Los Angeles County Central Coast Middle School Regional Science Bowl Los Angeles Unified School District Central Coast Middle School Regional Science Bowl Madera County Fresno SHPE Middle School Regional Science Bowl Marin County SLAC Middle School Regional Science Bowl Modoc County Far Nor Cal Middle School Regional Science Bowl Mariposa County Sandia/Las Positas Middle School Regional Science Bowl Mendocino County Far Nor Cal Middle School Regional Science Bowl Merced County Sandia/Las Positas Middle School Regional Science Bowl Mono County Sandia/Las Positas Middle School Regional Science Bowl Monterey County Central Coast Middle School Regional Science Bowl Napa County Sandia/Las Positas Middle School Regional Science Bowl Nevada County Far Nor Cal Middle School Regional Science Bowl Orange County Central Coast Middle School Regional Science Bowl Placer County Sandia/Las Positas Middle School Regional Science Bowl Plumas County Far Nor Cal Middle School Regional Science Bowl Riverside County Central Coast Middle School Regional Science Bowl Sacramento County Sandia/Las Positas Middle School Regional Science Bowl San Benito County Sandia/Las Positas Middle School Regional Science Bowl San Bernardino County Central Coast Middle School Regional Science Bowl San Diego County Central Coast Middle School Regional Science Bowl San Francisco County SLAC Middle School Regional Science Bowl San Joaquin County Sandia/Las Positas Middle School Regional Science Bowl San Luis Obispo County Central Coast Middle School Regional Science Bowl San Mateo County SLAC Middle School Regional Science Bowl Santa Barbara County Central Coast Middle School Regional Science Bowl Santa Clara County SLAC Middle School Regional Science Bowl Santa Cruz County SLAC Middle School Regional Science Bowl Shasta County Far Nor Cal Middle School Regional Science Bowl Sierra County Sandia/Las Positas Middle School Regional Science Bowl Siskiyou County Far Nor Cal Middle School Regional Science Bowl Solano County Sandia/Las Positas Middle School Regional Science Bowl Sonoma County Sandia/Las Positas Middle School Regional Science Bowl Stanislaus County Sandia/Las Positas Middle School Regional Science Bowl Sutter County Sandia/Las Positas Middle School Regional Science Bowl Tehama County Far Nor Cal Middle School Regional Science Bowl Trinity County Far Nor Cal Middle School Regional Science Bowl Tulare County Fresno SHPE Middle School Regional Science Bowl Tuolumne County Sandia/Las Positas Middle School Regional Science Bowl Ventura Sandia/Las Positas Middle School Regional Science Bowl Yolo County Sandia/Las Positas Middle School Regional Science Bowl Yuba County Sandia/Las Positas Middle School Regional Science Bowl