| Election Name: | 1854 Iowa Senate election |
| Country: | Iowa |
| Flag Image: | Flag of Iowa (variant).svg |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 1852 Iowa Senate election |
| Previous Year: | 1852 |
| Next Election: | 1856 Iowa Senate election |
| Next Year: | 1856 |
| Seats For Election: | 19 out of 31 seats in the Iowa State Senate |
| Majority Seats: | 16 |
| Election Date: | 1854 |
| Party1: | Democratic Party (United States) |
| Last Election1: | 20 |
| Seat Change1: | 3 |
| Seats After1: | 17 |
| Party2: | Whig Party (US) |
| Last Election2: | 11 |
| Seat Change2: | 3 |
| Seats After2: | 14 |
| President of the Iowa Senate | |
| Before Election: | William E. Leffingwell |
| Before Party: | Democratic Party (United States) |
| After Election: | Maturin L. Fisher |
| After Party: | Democratic Party (United States) |
In the 1854 Iowa State Senate elections, Iowa voters elected state senators to serve in the fifth Iowa General Assembly. Elections were held for 19 of the state senate's 31 seats. State senators serve four-year terms in the Iowa State Senate.
The general election took place in 1854.[1]
Following the previous election in 1852, Democrats had control of the Iowa Senate with 20 seats to Whigs' 11 seats.
To claim control of the chamber from Democrats, the Whigs needed to net 5 Senate seats.
Democrats maintained control of the Iowa State Senate following the 1854 general election with the balance of power shifting to Democrats holding 17 seats and Whigs having 14 seats (a net gain of 3 seats for Whigs). Democratic Senator Maturin L. Fisher was chosen as the President of the Iowa Senate for the fifth General Assembly, succeeding Democratic Senator William E. Leffingwell in that leadership position.
| Senate District | Incumbent | Party | Elected Senator | Party | Outcome | |||
|---|---|---|---|---|---|---|---|---|
| 1st | Salmon Cowles | Dem | Exum Sumner McCulloch | Dem | Dem Hold | |||
| James M. Love | Dem | David Trowbridge Brigham | Dem | Dem Hold | ||||
| Vacancy upon Senator Love's resignation. | ||||||||
| Calvin J. Price | Dem | William A. Thurston | Dem | Dem Hold | ||||
| 2nd | George Hepner | Dem | William Findlay Coolbaugh | Dem | Dem Hold | |||
| 3rd | John Brice Spees | Whig | Abner Harrison McCrary | Whig | Whig Hold | |||
| 5th | Archibald McKinney | Whig | Alvin Saunders | Whig | Whig Hold | |||
| 6th | John Wesley Hedrick | Whig | James C. Ramsey | Dem | Dem Gain | |||
| 7th | Henry Benham Hendershott | Dem | Daniel A. Anderson | Whig | Whig Gain | |||
| 9th | Amos Harris | Dem | Nathan Udell | Dem | Dem Hold | |||
| 10th | Hadley Douglas Johnson | Dem | James D. Test | Dem | Dem Hold | |||
| 12th | Norman Everson | Whig | Hiram Thomas Cleaver | Dem | Dem Gain | |||
| 13th | Joseph Lowe | Dem | James Latimer Hogin | Whig | Whig Gain | |||
| 16th | Eli Snow Wing | Dem | Ambrose Cowperthwaite Fulton | Whig | Whig Gain | |||
| 17th | Jonathan Emerson Fletcher | Dem | George W. Wilkinson | Whig | Whig Gain | |||
| 18th | William E. Leffingwell | Dem | Julius J. Matthews | Whig | Whig Gain | |||
| 19th | George D. Crosthwait | Whig | Samuel Workman | Dem | Dem Gain | |||
| 20th | Andrew Young Hull | Dem | Theophilus Bryan | Dem | Dem Hold | |||
| James Cunningham Jordan | Whig | Whig Gain | ||||||
| 22nd | Nathan G. Sales | Dem | Joseph Birge | Dem | Dem Hold | |||
| 24th | John G. Shields | Dem | Vacancy after Shields' death on June 25, 1856. | |||||
| Warner Lewis | Dem | William W. Hamilton | Whig | Whig Gain | ||||
Source:[2]
District boundaries for the Iowa Senate in 1854: