| Election Name: | 1848 Iowa Senate election |
| Country: | Iowa |
| Flag Image: | Flag of Iowa (variant).svg |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 1846 Iowa Senate election |
| Previous Year: | 1846 |
| Next Election: | 1850 Iowa Senate election |
| Next Year: | 1850 |
| Seats For Election: | 10 out of 19 seats in the Iowa State Senate |
| Majority Seats: | 10 |
| Election Date: | 1848 |
| Party1: | Democratic Party (United States) |
| Last Election1: | 11 |
| Seats After1: | 11 |
| Party2: | Whig Party (US) |
| Last Election2: | 8 |
| Seats After2: | 8 |
| President of the Iowa Senate | |
| Before Election: | Thomas Baker & Thomas Hughes |
| Before Party: | Democratic Party (United States) |
| After Election: | John Jackson Selman |
| After Party: | Democratic Party (United States) |
In the 1848 Iowa State Senate elections, Iowa voters elected state senators to serve in the second Iowa General Assembly. Elections were held for 10 of the state senate's 19 seats. State senators serve four-year terms in the Iowa State Senate.
The general election took place in 1848.[1]
Following the previous election in 1846, Democrats had control of the Iowa Senate with 11 seats to Whigs' eight seats.
To claim control of the chamber from Democrats, the Whigs needed to net two Senate seats.
Democrats maintained control of the Iowa State Senate following the 1848 general election with the balance of power remaining unchanged with Democrats holding 11 seats and Whigs having eight seats. Democratic Senator John Jackson Selman was chosen as the President of the Iowa Senate for the second General Assembly.
| Senate District | Incumbent | Party | Elected Senator | Party | Outcome | |||
|---|---|---|---|---|---|---|---|---|
| 1st | Jacob Huner | Dem | Thomas Stevenson Espy | Dem | Dem Hold | |||
| 2nd | John McCormick Whitaker | Dem | George Grover Wright | Whig | Whig Gain | |||
| 3rd | John Jackson Selman | Dem | John Jackson Selman | Dem | Dem Hold | |||
| 4th | James Davis | Whig | Barney Royston | Dem | Dem Gain | |||
| 5th | Thomas Baker | Dem | Phineas M. Casady | Dem | Dem Hold | |||
| 6th | Samuel Fullenwider | Whig | Alfred S. Fear | Dem | Dem Gain | |||
| 8th | Robert Brown | Dem | John Howell | Dem | Dem Hold | |||
| John Howell | Dem | |||||||
| 11th | Thomas Hughes | Dem | Freeman Alger | Dem | Dem Hold | |||
| 13th | Samuel Augustus Bissell | Dem | John Parsons Cook | Whig | Whig Gain | |||
| 15th | Thomas Hart Benton | Dem | John G. Shields | Dem | Dem Hold | |||
Source:[2]
District boundaries for the Iowa Senate in 1848: