The Placentia Library is an Independent Special District, governed by a five member elected Board of Trustees. The governing board promulgates policies and regulations for the District as well as establishing the budget for tax rate.
| Year | Trustees 1 | Trustees 2 | Trustees 3 | Trustees 4 | Trustees 5 | Race | Notes |
|---|---|---|---|---|---|---|---|
| 2000 | 1 | 2 | 3 | 2000 PLD | |||
| 2001 | |||||||
| 2002 | 4 | 5 | 2002 PLD | ||||
| 2003 | |||||||
| 2004 | GAE WOOD | RICHARD DEVECCHIO | JEAN TURNER | 2004 PLD | |||
| 2005 | |||||||
| 2006 | BETTY ESCOBOSA | AL SHKOLER | 2006 PLD | ||||
| 2007 | |||||||
| 2008 | 1 | 2 | 3 | 2008 PLD | |||
| 2009 | |||||||
| 2010 | BETTY ESCOBOSA | AL SHKOLER | 2010 PLD | ||||
| 2011 | ] | ||||||
| 2012 | ELIZABETH MINTER | RICHARD DEVECCHIO | GAYLE CARLINE | 2012 PLD | |||
| 2013 | |||||||
| 2014 | BETTY ESCOBOSA | AL SHKOLER | 2014 PLD | Contest cancelled![]() | |||
| 2015 | |||||||
| 2016 | ELIZABETH MINTER | RICHARD DEVECCHIO | 2016 PLD | Contest cancelled![]() | |||
| 2017 | |||||||
| 2018 | 4 | 5 | 2018 PLD | ||||
| 2019 | |||||||
| 2020 | 1 | 2 | 3 | 2020 PLD | |||
| 2021 |
Jo-Anne W. Martin
Gayle Carline
Sherri Dahl
Hilaire Shioura
Al Shkoler