Elections / 2010
The 2010 elections
A midterm cycle: 36 US Senate contests on record. Presidential pages cover the quadrennial years on either side.
2010 US Senate elections
2010Senate margin
D+60R+60
States with a Senate contest in 2010, each filled by its result. States without a seat up this cycle are faint.
Gold marks a state an independent or third-party candidate carried — the blue/red ramp is the Democratic-vs-Republican margin only where a major party won.
Blue and red show the Democratic-vs-Republican margin; gold marks a seat an independent won.
All 36 results, 2010
| State | Senate margin |
|---|---|
| Hawaii | D+53.2 |
| New York | D+39.3 |
| Vermont | D+33.4 |
| Maryland | D+26.5 |
| Oregon | D+18.0 |
| Delaware | D+16.6 |
| West Virginia | D+10.1 |
| California | D+10.0 |
| Connecticut | D+9.3 |
| Nevada | D+5.7 |
| Washington | D+4.7 |
| Colorado | D+1.6 |
| Illinois | R+1.6 |
| Pennsylvania | R+2.0 |
| Wisconsin | R+4.8 |
| Kentucky | R+11.5 |
| North Carolina | R+11.8 |
| Alaska | O+5.4 |
| Missouri | R+13.6 |
| Indiana | R+14.6 |
| Ohio | R+17.4 |
| Louisiana | R+18.9 |
| Georgia | R+19.3 |
| Arkansas | R+21.0 |
| New Hampshire | R+23.2 |
| Arizona | R+24.3 |
| Florida | R+28.7 |
| Utah | R+28.8 |
| Alabama | R+30.5 |
| Iowa | R+31.1 |
| South Carolina | R+34.4 |
| Kansas | R+43.7 |
| Oklahoma | R+44.5 |
| Idaho | R+46.3 |
| North Dakota | R+54.0 |
| South Dakota | R+100.0 |
The 2010 cycle at a glance
US Senate
51–47–2
Democrats held
US House
193–242
Republicans flipped
Governors
D 13 · R 22 · O 1
36 races
Go deeper by office
Governor pages cover 2018–2025: even-year cycles with county-level precinct detail, the odd-year VA/NJ and KY/LA/MS races as certified statewide results. See the methodology for series notes.