| Senator | Party - District | 2018 Score |
|---|
| Aguilar, Irene | D - District 32 | 83% |
| Baumgardner, Randy | R - District 8 | 14% |
| Cooke, John | R - District 13 | 20% |
| Coram, Don | R - District 6 | 38% |
| Court, Lois | D - District 31 | 83% |
| Crowder, Larry | R - District 35 | 38% |
| Donovan, Kerry | D - District 5 | 100% |
| Fenberg, Stephen | D - District 18 | 100% |
| Fields, Rhonda | D - District 29 | 92% |
| Garcia, Leroy | D - District 3 | 100% |
| Gardner, Bob | R - District 12 | 24% |
| Grantham, Kevin | R - District 2 | 38% |
| Guzman, Lucia | D - District 34 | 85% |
| Hill, Owen | R - District 10 | 15% |
| Holbert, Chris | R - District 30 | 31% |
| Jahn, Cheri | U - District 20 | 64% |
| Jones, Matt | D - District 17 | 100% |
| Kagan, Daniel | D - District 26 | 100% |
| Kefalas, John | D - District 14 | 85% |
| Kerr, Andy | D - District 22 | 100% |
| Lambert, Kent | R - District 9 | 29% |
| Lundberg, Kevin | R - District 15 | 31% |
| Marble, Vicki | R - District 23 | 12% |
| Martinez Humenik, Beth | R - District 24 | 46% |
| Merrifield, Michael | D - District 11 | 100% |
| Moreno, Dominick | D - District 21 | 87% |
| Neville, Tim | R - District 16 | 13% |
| Priola, Kevin | R - District 25 | 31% |
| Scott, Ray | R - District 7 | 38% |
| Smallwood, Jim | R - District 4 | 21% |
| Sonnenberg, Jerry | R - District 1 | 13% |
| Tate, Jack | R - District 27 | 21% |
| Todd, Nancy | D - District 28 | 100% |
| Williams, Angela | D - District 33 | 92% |
| Zenzinger, Rachel | D - District 19 | 100% |
