Below we have a list of all the polls used on this site. Only nonpartisan polls are used; polls taken by pollsters paid for by one of the parties are intentionally omitted. The dates given are when the poll started and ended. The polls for each state are sorted in descending order of their midpoints. Incumbents are denoted by asterisks.
The data are also available as plain text and in .csv format for use with Excel. In the latter, the first column is the day number of the midpoint (Jan. 1, 2016 = day 1.0) and the second is the poll length in days. That is repeated after the pollster.
The site also has a page describing the Senate races, including brief descriptions of the situation, the names and photos of the candidates, and links to their campaign pages, Wikipedia entries, and state parties.
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Arizona | Ruben Gallego | 50% | Kari Lake | 48% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| California | Candidate unknown | 54% | Candidate unknown | 46% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Connecticut | Chris Murphy* | 59% | Candidate unknown | 40% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Delaware | Lisa Rochester | 60% | Candidate unknown | 38% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Florida | Candidate unknown | 49% | Rick Scott* | 50% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Hawaii | Mazie Hirono* | 71% | Candidate unknown | 29% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Indiana | Candidate unknown | 44% | Candidate unknown | 52% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Maine | Angus King* | 55% | Candidate unknown | 35% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Maryland | Candidate unknown | 64% | Candidate unknown | 31% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Massachusetts | Elizabeth Warren* | 61% | Candidate unknown | 36% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Michigan | Elissa Slotkin | 52% | Mike Rogers | 46% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Minnesota | Amy Klobuchar* | 60% | Candidate unknown | 36% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Mississippi | Candidate unknown | 39% | Roger Wicker* | 59% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Missouri | Candidate unknown | 46% | Josh Hawley* | 52% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Montana | Jon Tester* | 49% | Candidate unknown | 48% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Nebraska | Candidate unknown | 38% | Deb Fischer* | 58% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Nebraska-special | Candidate unknown | 38% | Pete Ricketts* | 58% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Nevada | Jacky Rosen* | 50% | Candidate unknown | 45% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| New Jersey | Candidate unknown | 53% | Candidate unknown | 44% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| New Mexico | Martin Heinrich* | 54% | Candidate unknown | 31% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| New York | Kirsten Gillibrand* | 67% | Candidate unknown | 33% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| North Dakota | Candidate unknown | 45% | Kevin Cramer* | 55% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Ohio | Sherrod Brown* | 53% | Candidate unknown | 47% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Pennsylvania | Bob Casey* | 56% | Candidate unknown | 43% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Rhode Island | Sheldon Whitehouse* | 62% | Candidate unknown | 38% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Tennessee | Candidate unknown | 44% | Marsha Blackburn* | 55% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Texas | Candidate unknown | 48% | Ted Cruz* | 51% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Utah | Candidate unknown | 32% | Candidate unknown | 62% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Vermont | Bernie Sanders* | 67% | Candidate unknown | 27% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Virginia | Tim Kaine* | 57% | Candidate unknown | 41% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Washington | Maria Cantwell* | 59% | Candidate unknown | 41% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| West Virginia | Joe Manchin* | 50% | Candidate unknown | 46% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Wisconsin | Tammy Baldwin* | 55% | Candidate unknown | 45% | Nov 13 | Nov 13 | Election 2018 | ||
| State | Democrat | D % | Republican | R % | Start | End | Pollster | ||
| Wyoming | Candidate unknown | 30% | John Barrasso* | 67% | Nov 13 | Nov 13 | Election 2018 | ||