| Election Name: | 1850 Iowa Senate election |
| Country: | Iowa |
| Flag Image: | Flag of Iowa (variant).svg |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 1848 Iowa Senate election |
| Previous Year: | 1848 |
| Next Election: | 1852 Iowa Senate election |
| Next Year: | 1852 |
| Seats For Election: | 11 out of 19 seats in the Iowa State Senate |
| Majority Seats: | 10 |
| Election Date: | 1850 |
| Party1: | Democratic Party (United States) |
| Last Election1: | 11 |
| Seat Change1: | 3 |
| Seats After1: | 14 |
| Party2: | Whig Party (US) |
| Last Election2: | 8 |
| Seat Change2: | 3 |
| Seats After2: | 5 |
| President of the Iowa Senate | |
| Before Election: | John Jackson Selman |
| Before Party: | Democratic Party (United States) |
| After Election: | Enos Lowe |
| After Party: | Democratic Party (United States) |
In the 1850 Iowa State Senate elections, Iowa voters elected state senators to serve in the third Iowa General Assembly. Elections were held for 11 of the state senate's 19 seats. State senators serve four-year terms in the Iowa State Senate.
The general election took place in 1850.[1]
Following the previous election in 1848, 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 1850 general election with the balance of power shifting to Democrats holding 14 seats and Whigs having five seats (a net gain of 3 seats for Democrats). Democratic Senator Enos Lowe was chosen as the President of the Iowa Senate for the third General Assembly, succeeding Democratic Senator John Jackson Selman in that leadership position.
| Senate District | Incumbent | Party | Elected Senator | Party | Outcome | |||
|---|---|---|---|---|---|---|---|---|
| 1st | James Sprott | Whig | Nathan Baker | Dem | Dem Gain | |||
| 2nd | John Fletcher Sanford | Whig | John Brice Spees | Whig | Whig Hold | |||
| 4th | Barney Royston | Dem | Henry Benham Hendershott | Dem | Dem Hold | |||
| 6th | Alfred S. Fear | Dem | Enos Lowe | Dem | Dem Hold | |||
| Milton D. Browning | Whig | George Hepner | Dem | Dem Gain | ||||
| 7th | Evan Jay | Whig | John Tillison Morton | Whig | Whig Hold | |||
| 9th | Francis Springer | Whig | Norman Everson | Whig | Whig Hold | |||
| 10th | Richard Randolph Harbour | Dem | Joseph Lowe | Dem | Dem Hold | |||
| 12th | Loring Wheeler | Whig | William E. Leffingwell | Dem | Dem Gain | |||
| 14th | Philip Burr Bradley | Dem | Nathan G. Sales | Dem | Dem Hold | |||
| 15th | Theophilus Crawford | Dem | Warner Lewis | Dem | Dem Hold | |||
Source:[2]
District boundaries were redrawn before the 1850 general election for the Iowa Senate: