Susan A. Bonilla was sworn-in as the Contra Costa County Supervisor for District IV in January 2007. She was previously elected to the Concord City Council in 2002, serving as Vice Mayor in 2005 and Mayor in 2006.  

In her time on the Concord City Council, she initiated the Literacy Coalition which serves as a network of literacy providers dedicated to raising the awareness of literacy needs and mobilizing volunteers to meet these needs.  

In 2006, Susan, as Mayor of Concord, organized and led the local coalition in negotiations and discussions with the Department of the Navy regarding the reuse of the Concord Naval Weapons Station. 

Susan resides as Chair of Contra Costa County's Internal Operations Committee, which oversees Contra Costa County operations, policies, and procedures. In addition, Susan is a member of Contra Costa County's Family and Human Services Committee as well as the Contra Costa County State and Federal Legislative Committee. Susan also serves on countywide and regional boards, commissions, and task forces to serve her constituents.

Susan has been a resident of Concord since 1989. Her community participation has included many years with the neighborhood swim team, AYSO soccer, and involvement with parent-faculty clubs. She has worked in various capacities in the Mt Diablo Unified School District as a teacher in the Gifted and Talented Program, as a teacher of English as a Second Language in the adult program and as an English teacher at Concord High School. She also taught British Literature at Berean Christian High School in Walnut Creek. Susan received a B.A. in English from Azusa Pacific University in 1982 and completed a teaching credential program at California State University at Los Angeles in 1987.  She and her husband John have four daughters.

2008 Committee Assignments

2007 Committee Assignments