Post Office - Glennville 10686 Highway 155 Glennville, CA 93226 Phone : (661) 536-8802 Post Office - Glennville Business Category Post Offices Toll-Free           (800) ASK-USPS United States Government--postal Service, Glennville Glennville, CA 93226 Phone : (661) 536-8802 Business Category Government Offices-Federal Government Offices & Public Schools