2018 general · November 6, 2018

2018 State legislatures election results

Every State legislatures race in the 2018 general election, state by state: winners, margins and seats that changed party.

← Nov 6, 2018 general2019 general →

Races5,602
Changed party380
Unopposed27%1,538 races
Incumbents defeated298

Chambers

ChamberRacesSeats wonChanged party
Alabama House of Representatives105D 28 · R 77—
Alabama State Senate35D 8 · R 27—
Alaska House of Representatives40D 17 · R 22 · Other 11
Alaska State Senate10D 4 · R 6—
Arizona House of Representatives30D 29 · R 31—
Arizona State Senate30D 13 · R 17—
Arkansas House of Representatives100D 24 · R 767
Arkansas State Senate18D 5 · R 13—
California State Assembly80D 60 · R 205
California State Senate20D 14 · R 63
Colorado House of Representatives65D 41 · R 244
Colorado State Senate17D 9 · R 82
Connecticut House of Representatives151D 92 · R 5915
Connecticut State Senate36D 23 · R 135
Delaware House of Representatives41D 26 · R 151
Delaware State Senate10D 6 · R 41
Florida House of Representatives120D 48 · R 7211
Florida State Senate22D 7 · R 152
Georgia House of Representatives178D 75 · R 10315
Georgia State Senate56D 21 · R 353
Hawaii House of Representatives51D 46 · R 51
Hawaii State Senate13D 12 · R 11
Idaho House of Representatives35D 14 · R 56—
Idaho State Senate35D 7 · R 281
Illinois House of Representatives118D 74 · R 449
Illinois State Senate39D 24 · R 153
Indiana House of Representatives100D 33 · R 673
Indiana State Senate25D 4 · R 211
Iowa House of Representatives100D 46 · R 549
Iowa State Senate25D 12 · R 134
Kansas House of Representatives125D 40 · R 8510
Kansas State Senate1R 1—
Kentucky House of Representatives100D 39 · R 6114
Kentucky State Senate19D 2 · R 17—
Louisiana House of Representatives2Uncalled 2—
Louisiana State Senate1Uncalled 1—
Maine House of Representatives151D 89 · R 56 · Other 620
Maine State Senate35D 21 · R 144
Maryland House of Delegates67D 99 · R 423
Maryland State Senate47D 32 · R 153
Massachusetts House of Representatives160D 127 · R 32 · Other 13
Massachusetts State Senate40D 34 · R 62
Michigan House of Representatives110D 52 · R 588
Michigan State Senate38D 16 · R 225
Minnesota House of Representatives134D 75 · R 5918
Minnesota State Senate1R 1—
Mississippi House of Representatives2Uncalled 2—
Missouri House of Representatives163D 47 · R 1165
Missouri State Senate17D 3 · R 14—
Montana House of Representatives100D 42 · R 585
Montana State Senate25D 11 · R 14—
Nebraska Legislature24Other 24—
Nevada State Assembly42D 29 · R 132
Nevada State Senate11D 6 · R 52
New Hampshire House of Representatives206D 232 · R 167 · Uncalled 224
New Hampshire State Senate24D 14 · R 106
New Jersey General Assembly7Uncalled 7—
New Jersey State Senate1Uncalled 1—
New Mexico House of Representatives70D 46 · R 2410
New York State Assembly150D 107 · R 436
New York State Senate63D 40 · R 237
North Carolina House of Representatives120D 55 · R 65—
North Carolina State Senate50D 21 · R 29—
North Dakota House of Representatives24D 11 · R 37—
North Dakota State Senate24D 6 · R 181
Ohio House of Representatives99D 38 · R 617
Ohio State Senate17D 7 · R 102
Oklahoma House of Representatives101D 25 · R 7611
Oklahoma State Senate24D 7 · R 175
Oregon House of Representatives60D 38 · R 223
Oregon State Senate17D 11 · R 61
Pennsylvania House of Representatives203D 93 · R 11017
Pennsylvania State Senate25D 12 · R 13—
Rhode Island House of Representatives75D 66 · R 97
Rhode Island State Senate38D 33 · R 52
South Carolina House of Representatives124D 44 · R 804
South Carolina State Senate1D 11
South Dakota House of Representatives37D 11 · R 59—
South Dakota State Senate35D 5 · R 301
Tennessee House of Representatives99D 26 · R 733
Tennessee State Senate18D 4 · R 14—
Texas House of Representatives150D 67 · R 8312
Texas State Senate15D 5 · R 102
Utah House of Representatives75D 16 · R 594
Utah State Senate15D 5 · R 101
Vermont House of Representatives104D 102 · R 43 · Other 57
Vermont State Senate13D 24 · R 6—
Washington House of Representatives98D 57 · R 417
Washington State Senate25D 17 · R 84
West Virginia House of Delegates67D 41 · R 594
West Virginia State Senate17D 8 · R 94
Wisconsin State Assembly99D 36 · R 631
Wisconsin State Senate17D 6 · R 11—
Wyoming House of Representatives60D 9 · R 50 · Other 13
Wyoming State Senate15D 2 · R 132

Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: Harvard Dataverse / Carl Klarner; MIT Election Data and Science Lab