John Gioia (pronounced: Joy-a ) is an American politician. He has served on the Contra Costa County Board of Supervisors in Contra Costa County, California since 1998 and was overwhelmingly re-elected three times. He served as chair in 2002, 2006 and 2010. John Gioia is a Democrat. Contra Costa Supervisory seats are non-partisan.
| Attributes | Values |
|---|---|
| rdfs:comment |
|
| foaf:name |
|
| dc:description |
|
| is leader name of |