| Election Name: | 1843 Iowa Council election |
| Country: | Iowa |
| Flag Image: | Flag of Iowa (variant).svg |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 1842 Iowa Council election |
| Previous Year: | 1842 |
| Next Election: | 1844 Iowa Council election |
| Next Year: | 1844 |
| Seats For Election: | All 13 seats in the Iowa Territory Council |
| Majority Seats: | 7 |
| Election Date: | 1843 |
| Leader1: | Thomas Cox |
| Party1: | Democratic Party (United States) |
| Leaders Seat1: | 10th-Jackson County |
| Last Election1: | 7 |
| Seat Change1: | 1 |
| Seats After1: | 6 |
| Leader2: | John D. Elbert |
| Party2: | Whig Party (US) |
| Leaders Seat2: | 2nd-Van Buren County |
| Last Election2: | 6 |
| Seats After2: | 6 |
| President of the Iowa Territory Council | |
| Before Election: | John D. Elbert |
| Before Party: | Whig Party (US) |
| After Election: | Thomas Cox |
| After Party: | Democratic Party (United States) |
In the 1843 Iowa Territory Council elections, electors selected councilors to serve in the sixth Iowa Territory Council. All 13 members of the Territory Council were elected. Councilors served one-year terms.
The Iowa Territory existed from July 4, 1838, until December 28, 1846, when Iowa was admitted to the Union as a state. At the time, the Iowa Territory had a Legislative Assembly consisting of an upper chamber (i.e., the Territory Council) and a lower chamber (i.e., the Territory House).
Following the previous election in 1842, Democrats held a majority with seven seats to Whigs' six seats.
To claim a majority of seats, the Whigs needed to net one seat from Democrats.
Democrats maintained a majority of seats in the Iowa Territory Council following the 1843 general election with the balance of power remaining unchanged with Democrats holding seven seats and Whigs having six seats. Democratic Councilor Thomas Cox was chosen as the President of the sixth Territory Council to succeed Whig Councilor John D. Elbert in that leadership position.
However, during the session, Democratic Councilor Thomas Cox died on November 9, 1844, causing a vacancy. Following Cox's death, Democrats and Whigs were tied with six seats each.
| Iowa Territory Council District | Incumbent | Party | Elected Councilor | Party | Outcome | ||
|---|---|---|---|---|---|---|---|
| 1st | Robert M. G. Patterson | Whig | Robert M. G. Patterson | Whig | Whig Hold | ||
| William Patterson | Dem | William Patterson | Dem | Dem Hold | |||
| 2nd | John D. Elbert | Whig | John D. Elbert | Whig | Whig Hold | ||
| James H. Jenkins | Dem | James H. Jenkins | Dem | Dem Hold | |||
| 3rd | Shepherd Leffler | Dem | Shepherd Leffler | Dem | Dem Hold | ||
| 4th | William Henson Wallace | Whig | William Henson Wallace | Whig | Whig Hold | ||
| 5th | Joseph B. Teas | Dem | Joseph B. Teas | Dem | Dem Hold | ||
| 6th | Francis Springer | Whig | Francis Springer | Whig | Whig Hold | ||
| 7th | Pleasant Harris | Dem | Pleasant Harris | Dem | Dem Hold | ||
| 8th | John Parsons Cook | Whig | John Parsons Cook | Whig | Whig Hold | ||
| 9th | Robert Christie | Whig | Robert Christie | Whig | Whig Hold | ||
| 10th | Thomas Cox | Dem | Thomas Cox | Dem | Dem Hold | ||
| Vacancy after Cox's death | |||||||
| Francis Gehon | Dem | Francis Gehon | Dem | Dem Hold | |||
Source:[1]
District boundaries for the Iowa Territory Council in 1843: