| Year | Member 1 | Member 2 | Member 3 | Member 4 | Member 5 | Mayor | Mayor Pro Tem | Election | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2000 | 3 | 4 | 5 | 2000 Costa Mesa City Council | |||||
| 2001 | |||||||||
| 2002 | Gary Monahan | Allan R. Mansoor | 2002 Costa Mesa City Council | ||||||
| 2003 | |||||||||
| 2004 | KATRINA FOLEY | LINDA DIXON | ERIC BEVER | 2004 Costa Mesa City Council | |||||
| 2005 | |||||||||
| 2006 | WENDY BROOKS LEECE | Allan R. Mansoor | 2006 Costa Mesa City Council | ||||||
| 2007 | |||||||||
| 2008 | KATRINA FOLEY | GARY MONAHAN | ERIC BEVER | 2008 Costa Mesa City Council | |||||
| 2009 | |||||||||
| 2010 | WENDY LEECE | JIM RIGHEIMER | 2010 Costa Mesa City Council | ||||||
| 2011 | |||||||||
| 2012 | SANDRA L. "SANDY" GENIS | GARY MONAHAN | STEVE MENSINGER | 2012 Costa Mesa City Council | |||||
| 2013 | |||||||||
| 2014 | KATRINA FOLEY | JIM RIGHEIMER | 2014 Costa Mesa City Council | ||||||
| 2015 | |||||||||
| 2016 | SANDRA L. "SANDY" GENIS | JOHN STEPHENS | ALLAN R. MANSOOR | 2016 Costa Mesa City Council | |||||
| 2017 |
| Year | District 1 | District 2 | District 3 | District 4 | District 5 | District 6 | Mayor | Mayor Pro Tem | Election | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | ANDREA MARR | MANUEL CHAVEZ | ARLIS REYNOLDS | KATRINA FOLEY | 2018 Costa Mesa City Council | |||||
| 2019 | ||||||||||
| 2020 | DON HARPER | LOREN GAMEROS | JEFFREY HARLAN | KATRINA FOLEY | 2020 Costa Mesa City Council | |||||
| 2021 |