September 1, 1858
General Election
| SD-01 | |||
| Cameron E. Thom | Democratic | Win | |
| SD-04 | |||
| R. A. Redman | Democratic | Win | |
| SD-05 | |||
| Gilbert A. Grant | Republican | Win | |
| Samuel H. Parker | Republican | Win | |
| Charles H. S. Williams | Republican | Win | |
| SD-06 | |||
| Samuel A. Merritt | Democratic | Win | |
| SD-07 | |||
| William Holden | Democratic | Win | |
| Isaac N. Quinn | Democratic | Win | |
| SD-08 | |||
| George W. Dent | Democratic | Win | |
| SD-09 | |||
| James M. McDonald | Democratic | Win | |
| SD-10 | |||
| Humphrey Griffith | Anti-Lecompton Democratic | Win | |
| SD-11 | |||
| Jasper O'Farrell | Democratic | Win | |
| SD-13 | |||
| E. Garter | Democratic | Win | |
| SD-14 | |||
| S. A. Ballou | Anti-Lecompton Democratic | Win | |
| A. S. Hart | Anti-Lecompton Democratic | Win | |
| SD-15 | |||
| William H. Parks | Democratic | Win | |
| SD-16 | |||
| Christopher J. Lansing | Democratic | Win | |
| SD-17 | |||
| E. D. Wheeler | Anti-Lecompton Democratic | Win | |
| SD-18 | |||
| A. St. Clair Denver | Democratic | Win | |
| William B. Dickenson | Democratic | Win | |
| S. F. Hamm | Democratic | Win | |
| Isaac S. Titus | Democratic | Win | |
| SD-19 | |||
| B. T. Bradley | Democratic | Win | |
| Lewis N. Ketcham | Democratic | Win | |
| SD-20 | |||
| M. Kirkpatrick | Democratic | Win | |
| AD-01 | |||
| A. S. Ensworth | Democratic | Win | |
| Henry Hancock | Democratic | Win | |
| Andres Pico | Democratic | Win | |
| G. N. Whitman | Democratic | Win | |
| AD-02 | |||
| Eugene Lies | Democratic | Win | |
| Walter Murray | Democratic | Win | |
| AD-03 | |||
| Hiram A. Imus | Anti-Lecompton Democratic | Win | |
| Miriano Malarin | Democratic | Win | |
| AD-04 | |||
| William P. Rodgers | Democratic | Win | |
| James P. Springer | Democratic | Win | |
| E. C. Tully | Democratic | Win | |
| AD-05 | |||
| James A. Banks | Republican | Win | |
| John W. Cherry | Republican | Win | |
| David W. Connely | Democratic | Win | |
| Albert A. Hill | Republican | Win | |
| Louis R. Lull | Republican | Win | |
| Jacob B. Moore | Republican | Win | |
| Frank M. Pixley | Republican | Win | |
| William W. Shepard | Republican | Win | |
| James M. Taylor | Republican | Win | |
| AD-06 | |||
| George H. Crenshaw | Democratic | Win | |
| Andrew J. Gregory | Democratic | Win | |
| James M. Roane | Democratic | Win | |
| AD-07 | |||
| Samuel M. Buck | Democratic | Win | |
| William Dow | Democratic | Win | |
| Robert Howe | Democratic | Win | |
| George W. Thomas | Democratic | Win | |
| George W. Whitney | Democratic | Win | |
| AD-08 | |||
| Benjamin S. Hines | Democratic | Win | |
| G. C. Holman | Democratic | Win | |
| Thomas Laspeyre | Democratic | Win | |
| AD-09 | |||
| Charles Duncombe | Anti-Lecompton Democratic | Win | |
| R. B. Ellis | Democratic | Win | |
| Andrew R. Jackson | Anti-Lecompton Democratic | Win | |
| James E. Sheridan | Democratic | Win | |
| AD-10 | |||
| Nathan Cutler | Democratic | Win | |
| Harrison Gwinn | Democratic | Win | |
| William B. Matthews | Democratic | Win | |
| AD-11 | |||
| Joseph B. Lamar | Democratic | Win | |
| John S. Robberson | Democratic | Win | |
| Manuel Torres | Democratic | Win | |
| AD-12 | |||
| John Daggett | Democratic | Win | |
| William F. Watkins | Anti-Lecompton Democratic | Win | |
| AD-13 | |||
| H. W. Dunlap | Democratic | Win | |
| Charles R. Street | Democratic | Win | |
| AD-14 | |||
| Philip P. Caine | Anti-Lecompton Democratic | Win | |
| Frank E. Cannon | Anti-Lecompton Democratic | Win | |
| Thomas B. Shannon | Anti-Lecompton Democratic | Win | |
| AD-15 | |||
| Francis L. Aud | Democratic | Win | |
| Charles E. De Long | Anti-Lecompton Democratic | Win | |
| Mortimer Fuller | Anti-Lecompton Democratic | Win | |
| James S. Slingerland | Anti-Lecompton Democratic | Win | |
| C. L. N. Vaughan | Democratic | Win | |
| John Whealdon | Anti-Lecompton Democratic | Win | |
| AD-16 | |||
| William B. Armstrong | Democratic | Win | |
| Chris W. Cahalan | Democratic | Win | |
| Philip Moore | Democratic | Win | |
| George A. Young | Democratic | Win | |
| AD-17 | |||
| William P. Barclay | Democratic | Win | |
| Philip Lynch | Democratic | Win | |
| William C. Stratton | Democratic | Win | |
| W. P. Wing | Democratic | Win | |
| AD-18 | |||
| Alfred Briggs | Anti-Lecompton Democratic | Win | |
| William T. Coleman | Democratic | Win | |
| George M. Condee | Democratic | Win | |
| George A. Douglass | Anti-Lecompton Democratic | Win | |
| George N. Douglass | Democratic | Win | |
| Henry C. Sloss | Anti-Lecompton Democratic | Win | |
| Ogden Squires | Democratic | Win | |
| J. S. Tipton | Democratic | Win | |
| AD-19 | |||
| James Burdick | Democratic | Win | |
| Warner W. Cope | Democratic | Win | |
| John A. Eagon | Democratic | Win | |
| C. W. Lightner | Democratic | Win | |
| Charles E. Mount | Democratic | Win | |
| AD-20 | |||
| James A. Johnson | Democratic | Win | |
| Josiah Lefever | Democratic | Win | |
| AD-21 | |||
| Fordyce Bates | Democratic | Win | |
| E. L. Davis | Anti-Lecompton Democratic | Win | |
Special Election
| Controller | |||
| Isaac N. Dawley | Anti-Lecompton Democratic | 34.9% | Loss |
| L. C. Gunn | Republican | 9.4% | Loss |
| Aaron R. Melony | Lecompton Democratic | 55.7% | Win |