# 2007 United States state legislative elections

Elections to state legislatures were held on November 6, 2007. Seven legislative chambers in four states held regularly-scheduled elections. These off-year elections coincided with other state and local elections, including gubernatorial elections in three states. Both chambers of the Northern Mariana Islands were up as well.
Democrats held control of both chambers of the New Jersey and Louisiana legislatures, and held control of the Mississippi House of Representatives. Meanwhile, Republicans held control of the Virginia House of Delegates. Meanwhile, Democrats gained control of the Virginia and Mississippi Senates, however, Democrats had only lost control of the latter chamber at the beginning of the year when Senators James Walley and Tommy Gollott switched parties from Democratic to Republican.
Additionally, Republicans lost control of the Tennessee Senate when Republican Senator Michael R. Williams became an Independent and the chamber became evenly divided with no one party in control.

## Summary table

Regularly-scheduled elections were held in 8 of the 99 state legislative chambers in the United States. Nationwide, regularly-scheduled elections were held for 578 of the 7,383 legislative seats. This table only covers regularly-scheduled elections; additional special elections took place concurrently with these regularly-scheduled elections.
| State | Upper House | Upper House | Upper House | Upper House | Lower House | Lower House | Lower House | Lower House |
| State | Seats up | Total | % up | Term | Seats up | Total | % up | Term |
| Louisiana | 39 | 39 | 100 | 4 | 105 | 105 | 100 | 4 |
| Mississippi | 52 | 52 | 100 | 4 | 122 | 122 | 100 | 4 |
| New Jersey | 40 | 40 | 100 | 2/4 | 80 | 80 | 100 | 2 |
| Virginia | 40 | 40 | 100 | 4 | 100 | 100 | 100 | 2 |

## State summaries
### Louisiana

All seats of the Louisiana State Senate and the Louisiana House of Representatives were up for election to four-year terms in single-member districts. Democrats maintained control of both chambers.
Louisiana State Senate :
| Party | Party | Before | After | Change |
| | Democratic | 24 | 23 | 1 |
| | Republican | 15 | 16 | 1 |
| Total | Total | 39 | 39 |
Louisiana House of Representatives :
| Party | Party | Before | After | Change |
| | Democratic | 66 | 53 | 13 |
| | Republican | 37 | 50 | 13 |
| | Independent | 2 | 2 | |
| Total | Total | 105 | 105 |

### Mississippi

All seats of the Mississippi State Senate and the Mississippi House of Representatives were up for election to four-year terms in single-member districts. Democrats maintained control of the lower house, and they regained control of the upper house, which they had lost due to party switching earlier in the year.
Mississippi State Senate :
| Party | Party | Before | After | Change |
| | Democratic | 25 | 27 | 2 |
| | Republican | 27 | 25 | 2 |
| Total | Total | 52 | 52 |
Mississippi House of Representatives :
| Party | Party | Before | After |
| | Democratic | 75 | 75 |
| | Republican | 47 | 47 |
| Total | Total | 122 | 122 |

### New Jersey

All seats of the New Jersey Senate and the New Jersey General Assembly were up for election. In 2007, senators were elected to two-year terms in single-member districts, while Assembly members were elected to two-year terms in two-member districts. Democrats retained majority control in both chambers.
Senate :
| Party | Party | Before | After | Change |
| | Democratic | 22 | 23 | 1 |
| | Republican | 18 | 17 | 1 |
| Total | Total | 40 | 40 |
General Assembly :
| Party | Party | Before | After | Change |
| | Democratic | 49 | 48 | 1 |
| | Republican | 31 | 32 | 1 |
| Total | Total | 80 | 80 |

### Virginia

All seats of the Senate of Virginia and the Virginia House of Delegates were up for election in single-member districts. Senators were elected to four-year terms, while delegates serve terms of two years. Republicans maintained control of the lower chamber and but lost control of the upper chamber to the Democrats.
Senate of Virginia :
| Party | Party | Before | After | Change |
| | Democratic | 16 | 21 | 5 |
| | Republican | 24 | 19 | 5 |
| Total | Total | 40 | 40 |
Virginia House of Delegates :
| Party | Party | Before | After | Change |
| | Republican | 57 | 54 | 3 |
| | Independent | 2 | 2 | 1 |
| | Independent | 1 | 2 | 1 |
| | Democratic | 40 | 44 | 4 |
| Total | Total | 100 | 100 |

## Territorial and federal district summaries
### Northern Mariana Islands

All seats of the Northern Mariana Islands House of Representatives and half of the Northern Mariana Islands Senate are up for election. Senators are elected to four-year terms and Representatives are elected to two-year terms.