Middle Schools in Sonoma, CA Adele Harrison Middle School1150 BroadwaySonoma, CA, 954767079356080Guerneville Elementary School DistrictMiddle SchoolsPrivate Schools K 12Public Schools Altimira Middle School17805 Arnold DrSonoma, CA, 954767079356020Guerneville Elementary School DistrictMiddle SchoolsPrivate Schools K 12Public Schools Show More