| Middate/Time | Pollster | Biden | Trump | Margin | Start/End | Released/Entered |
|---|
2020-10-30 00:00 | Swayable w/4P | 47.1% | 52.3% | Trump
by 5.2% | 2020-10-27
2020-11-01 | 2020-11-02
2020-11-03 06:17 |
2020-10-30 00:00 | AtlasIntel | 46.5% | 50.4% | Trump
by 3.9% | 2020-10-29
2020-10-30 | 2020-11-02
2020-11-02 23:26 |
2020-10-28 00:00 | Gravis | 47.0% | 49.0% | Trump
by 2.0% | 2020-10-27
2020-10-28 | 2020-10-29
2020-10-29 20:48 |
2020-10-27 00:00 | SurveyMonkey LV [28] | 47.0% | 51.0% | Trump
by 4.0% | 2020-10-20
2020-11-02 | 2020-11-03
2020-11-03 18:10 |
2020-10-27 00:00 | SurveyMonkey RV [28] | 48.0% | 50.0% | Trump
by 2.0% | 2020-10-20
2020-11-02 | 2020-11-03
2020-11-03 18:10 |
2020-10-27 00:00 | Morning Consult | 46.6% | 49.2% | Trump
by 2.6% | 2020-10-22
2020-10-31 | 2020-11-02
2020-11-02 11:32 |
2020-10-26 00:00 | SurveyMonkey RV [28] | 48.0% | 50.0% | Trump
by 2.0% | 2020-10-19
2020-11-01 | 2020-11-02
2020-11-03 16:21 |
2020-10-26 00:00 | SurveyMonkey LV [28] | 47.0% | 50.0% | Trump
by 3.0% | 2020-10-19
2020-11-01 | 2020-11-02
2020-11-03 16:21 |
2020-10-25 12:00 | Quinnipiac | 48.0% | 43.0% | Biden
by 5.0% | 2020-10-23
2020-10-27 | 2020-10-29
2020-10-29 19:02 |
2020-10-25 00:00 | Wick | 46.5% | 49.4% | Trump
by 2.9% | 2020-10-24
2020-10-25 | 2020-11-02
2020-11-03 09:29 |
2020-10-25 00:00 | Swayable w/4P | 43.6% | 55.3% | Trump
by 11.7% | 2020-10-23
2020-10-26 | 2020-10-28
2020-10-30 21:06 |
2020-10-24 12:00 | SurveyMonkey RV [28] | 48.0% | 49.0% | Trump
by 1.0% | 2020-10-17
2020-10-31 | 2020-11-01
2020-11-03 16:21 |
2020-10-24 12:00 | SurveyMonkey LV [28] | 48.0% | 50.0% | Trump
by 2.0% | 2020-10-17
2020-10-31 | 2020-11-01
2020-11-03 16:21 |
2020-10-23 12:00 | SurveyMonkey RV [28] | 48.0% | 50.0% | Trump
by 2.0% | 2020-10-16
2020-10-30 | 2020-10-31
2020-11-03 11:31 |
2020-10-23 12:00 | SurveyMonkey LV [28] | 48.0% | 50.0% | Trump
by 2.0% | 2020-10-16
2020-10-30 | 2020-10-31
2020-11-03 11:31 |
2020-10-22 12:00 | SurveyMonkey RV [28] | 48.0% | 50.0% | Trump
by 2.0% | 2020-10-15
2020-10-29 | 2020-10-30
2020-11-03 11:31 |
2020-10-22 12:00 | SurveyMonkey LV [28] | 47.0% | 51.0% | Trump
by 4.0% | 2020-10-15
2020-10-29 | 2020-10-30
2020-11-03 11:31 |
2020-10-19 00:00 | Citizen Data w/4P | 43.2% | 44.4% | Trump
by 1.2% | 2020-10-17
2020-10-20 | 2020-10-29
2020-10-29 18:22 |
2020-10-19 00:00 | Fox News RV w/4P [2] | 44.0% | 46.0% | Trump
by 2.0% | 2020-10-17
2020-10-20 | 2020-10-21
2020-10-22 05:49 |
2020-10-19 00:00 | Fox News LV w/4P [2] | 45.0% | 48.0% | Trump
by 3.0% | 2020-10-17
2020-10-20 | 2020-10-21
2020-10-22 05:47 |
2020-10-19 00:00 | Rassmussen w/Lean [2] | 48.0% | 47.0% | Biden
by 1.0% | 2020-10-18
2020-10-19 | 2020-10-20
2020-10-21 15:49 |
2020-10-19 00:00 | Rassmussen [2] | 48.0% | 46.0% | Biden
by 2.0% | 2020-10-18
2020-10-19 | 2020-10-20
2020-10-21 15:47 |
2020-10-16 00:00 | Morning Consult | 47.0% | 49.0% | Trump
by 2.0% | 2020-10-11
2020-10-20 | 2020-10-22
2020-10-22 15:51 |
2020-10-14 12:00 | SurveyMonkey LV [56] | 47.0% | 51.0% | Trump
by 4.0% | 2020-09-30
2020-10-28 | 2020-10-29
2020-11-03 11:31 |
2020-10-14 12:00 | SurveyMonkey RV [56] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-30
2020-10-28 | 2020-10-29
2020-11-03 11:31 |
2020-10-13 12:00 | SurveyMonkey LV [56] | 47.0% | 51.0% | Trump
by 4.0% | 2020-09-29
2020-10-27 | 2020-10-28
2020-10-31 19:16 |
2020-10-13 12:00 | SurveyMonkey RV [56] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-29
2020-10-27 | 2020-10-28
2020-10-31 19:16 |
2020-10-11 12:00 | SurveyMonkey RV [56] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-27
2020-10-25 | 2020-10-26
2020-10-31 19:16 |
2020-10-11 12:00 | SurveyMonkey LV [56] | 47.0% | 51.0% | Trump
by 4.0% | 2020-09-27
2020-10-25 | 2020-10-26
2020-10-31 19:16 |
2020-10-10 12:00 | SurveyMonkey LV [56] | 48.0% | 51.0% | Trump
by 3.0% | 2020-09-26
2020-10-24 | 2020-10-25
2020-10-31 19:16 |
2020-10-10 12:00 | SurveyMonkey RV [56] | 48.0% | 49.0% | Trump
by 1.0% | 2020-09-26
2020-10-24 | 2020-10-25
2020-10-31 19:16 |
2020-10-10 12:00 | Quinnipiac | 48.0% | 47.0% | Biden
by 1.0% | 2020-10-08
2020-10-12 | 2020-10-13
2020-10-15 04:09 |
2020-10-10 00:00 | SurveyMonkey LV [56] | 48.0% | 51.0% | Trump
by 3.0% | 2020-09-26
2020-10-23 | 2020-10-24
2020-10-31 19:16 |
2020-10-10 00:00 | SurveyMonkey RV [56] | 48.0% | 49.0% | Trump
by 1.0% | 2020-09-26
2020-10-23 | 2020-10-24
2020-10-31 19:16 |
2020-10-10 00:00 | Civiqs | 47.0% | 50.0% | Trump
by 3.0% | 2020-10-08
2020-10-11 | 2020-10-15
2020-10-15 19:54 |
2020-10-09 00:00 | SurveyMonkey RV [56] | 48.0% | 49.0% | Trump
by 1.0% | 2020-09-25
2020-10-22 | 2020-10-23
2020-10-26 21:50 |
2020-10-09 00:00 | SurveyMonkey LV [56] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-25
2020-10-22 | 2020-10-23
2020-10-26 21:50 |
2020-10-08 00:00 | SurveyMonkey LV [56] | 48.0% | 51.0% | Trump
by 3.0% | 2020-09-24
2020-10-21 | 2020-10-22
2020-10-26 21:50 |
2020-10-08 00:00 | SurveyMonkey RV [56] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-24
2020-10-21 | 2020-10-22
2020-10-26 21:50 |
2020-10-07 00:00 | SurveyMonkey LV [56] | 47.0% | 51.0% | Trump
by 4.0% | 2020-09-23
2020-10-20 | 2020-10-21
2020-10-26 21:50 |
2020-10-07 00:00 | SurveyMonkey RV [56] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-23
2020-10-20 | 2020-10-21
2020-10-26 21:50 |
2020-10-07 00:00 | Morning Consult | 46.0% | 49.0% | Trump
by 3.0% | 2020-10-02
2020-10-11 | 2020-10-13
2020-10-13 18:38 |
2020-10-05 12:00 | SurveyMonkey LV [56] | 48.0% | 51.0% | Trump
by 3.0% | 2020-09-21
2020-10-19 | 2020-10-20
2020-10-26 21:50 |
2020-10-05 12:00 | SurveyMonkey RV [56] | 48.0% | 49.0% | Trump
by 1.0% | 2020-09-21
2020-10-19 | 2020-10-20
2020-10-26 21:50 |
2020-10-05 00:00 | SurveyMonkey LV [56] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-21
2020-10-18 | 2020-10-19
2020-10-26 21:50 |
2020-10-05 00:00 | SurveyMonkey RV [56] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-21
2020-10-18 | 2020-10-19
2020-10-26 21:50 |
2020-10-04 12:00 | Baldwin Wallace w/4P | 45.4% | 47.0% | Trump
by 1.6% | 2020-09-30
2020-10-08 | 2020-10-11
2020-10-11 05:20 |
2020-10-04 12:00 | Siena w/4P | 45.0% | 44.0% | Biden
by 1.0% | 2020-10-02
2020-10-06 | 2020-10-07
2020-10-09 14:41 |
2020-10-04 00:00 | SurveyMonkey LV [56] | 47.0% | 51.0% | Trump
by 4.0% | 2020-09-20
2020-10-17 | 2020-10-18
2020-10-26 21:50 |
2020-10-04 00:00 | SurveyMonkey RV [56] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-20
2020-10-17 | 2020-10-18
2020-10-26 21:50 |
2020-10-02 12:00 | SurveyMonkey RV [56] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-18
2020-10-16 | 2020-10-17
2020-10-26 21:50 |
2020-10-02 12:00 | SurveyMonkey LV [56] | 47.0% | 51.0% | Trump
by 4.0% | 2020-09-18
2020-10-16 | 2020-10-17
2020-10-26 21:50 |
2020-10-02 12:00 | Trafalgar w/4P | 43.9% | 47.6% | Trump
by 3.7% | 2020-10-01
2020-10-03 | 2020-10-05
2020-10-06 15:44 |
2020-10-02 00:00 | SurveyMonkey LV [56] | 47.0% | 51.0% | Trump
by 4.0% | 2020-09-18
2020-10-15 | 2020-10-16
2020-10-26 21:50 |
2020-10-02 00:00 | SurveyMonkey RV [56] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-18
2020-10-15 | 2020-10-16
2020-10-26 21:50 |
2020-10-01 12:00 | YouGov | 47.0% | 47.0% | TIED | 2020-09-30
2020-10-02 | 2020-10-04
2020-10-04 20:42 |
2020-10-01 00:00 | SurveyMonkey LV [56] | 47.0% | 51.0% | Trump
by 4.0% | 2020-09-17
2020-10-14 | 2020-10-15
2020-10-23 19:12 |
2020-10-01 00:00 | SurveyMonkey RV [56] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-17
2020-10-14 | 2020-10-15
2020-10-23 06:05 |
2020-09-30 00:00 | OnMessage w/Lean w/4P [2] | 47.0% | 47.5% | Trump
by 0.5% | 2020-09-28
2020-10-01 | 2020-10-22
2020-10-23 21:28 |
2020-09-30 00:00 | OnMessage w/4P [2] | 47.0% | 45.4% | Biden
by 1.6% | 2020-09-28
2020-10-01 | 2020-10-22
2020-10-23 21:24 |
2020-09-29 12:00 | SurveyMonkey LV [56] | 47.0% | 51.0% | Trump
by 4.0% | 2020-09-15
2020-10-13 | 2020-10-14
2020-10-22 20:45 |
2020-09-29 12:00 | SurveyMonkey RV [56] | 47.0% | 50.0% | Trump
by 3.0% | 2020-09-15
2020-10-13 | 2020-10-14
2020-10-21 22:29 |
2020-09-29 00:00 | SurveyMonkey LV [56] | 47.0% | 51.0% | Trump
by 4.0% | 2020-09-15
2020-10-12 | 2020-10-13
2020-10-18 21:45 |
2020-09-29 00:00 | SurveyMonkey RV [56] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-15
2020-10-12 | 2020-10-13
2020-10-18 08:13 |
2020-09-26 00:00 | Hart Research | 47.0% | 49.0% | Trump
by 2.0% | 2020-09-24
2020-09-27 | 2020-10-02
2020-10-02 22:57 |
2020-09-22 00:00 | Fox News RV w/4P [2] | 49.0% | 44.0% | Biden
by 5.0% | 2020-09-20
2020-09-23 | 2020-09-23
2020-09-27 08:32 |
2020-09-22 00:00 | Fox News LV w/4P [2] | 50.0% | 45.0% | Biden
by 5.0% | 2020-09-20
2020-09-23 | 2020-09-23
2020-09-27 08:30 |
2020-09-19 12:00 | Quinnipiac | 48.0% | 47.0% | Biden
by 1.0% | 2020-09-17
2020-09-21 | 2020-09-23
2020-09-27 05:40 |
2020-09-16 00:00 | SurveyMonkey RV [2] | 48.0% | 50.0% | Trump
by 2.0% | 2020-09-01
2020-09-30 | 2020-10-02
2020-10-04 03:03 |
2020-09-16 00:00 | SurveyMonkey LV [2] | 47.0% | 51.0% | Trump
by 4.0% | 2020-09-01
2020-09-30 | 2020-10-02
2020-10-03 21:09 |
2020-09-15 12:00 | Baldwin Wallace | 44.9% | 44.3% | Biden
by 0.6% | 2020-09-08
2020-09-22 | 2020-09-23
2020-09-23 18:48 |
2020-09-13 12:00 | Civiqs | 45.0% | 48.0% | Trump
by 3.0% | 2020-09-11
2020-09-15 | 2020-09-18
2020-09-18 22:23 |
2020-09-03 00:00 | Morning Consult | 45.0% | 50.0% | Trump
by 5.0% | 2020-08-29
2020-09-07 | 2020-09-09
2020-09-09 17:24 |
2020-09-02 00:00 | OnMessage w/Lean [2] | 44.8% | 50.5% | Trump
by 5.7% | 2020-08-31
2020-09-03 | 2020-09-22
2020-10-23 21:22 |
2020-09-02 00:00 | OnMessage [2] | 44.1% | 48.3% | Trump
by 4.2% | 2020-08-31
2020-09-03 | 2020-09-22
2020-10-23 21:20 |
2020-09-02 00:00 | Rassmussen w/Lean [2] | 51.0% | 47.0% | Biden
by 4.0% | 2020-09-01
2020-09-02 | 2020-09-08
2020-09-08 15:33 |
2020-09-02 00:00 | Rassmussen [2] | 49.0% | 45.0% | Biden
by 4.0% | 2020-09-01
2020-09-02 | 2020-09-08
2020-09-08 15:31 |
2020-08-29 12:00 | ALG Research | 48.0% | 46.0% | Biden
by 2.0% | 2020-08-26
2020-09-01 | 2020-10-01
2020-10-01 15:38 |
2020-08-26 00:00 | Morning Consult | 45.0% | 50.0% | Trump
by 5.0% | 2020-08-21
2020-08-30 | 2020-09-01
2020-09-01 16:25 |
2020-08-16 12:00 | SurveyMonkey LV [2] | 48.0% | 51.0% | Trump
by 3.0% | 2020-08-01
2020-08-31 | 2020-10-02
2020-10-04 02:51 |
2020-08-16 12:00 | SurveyMonkey RV [2] | 48.0% | 50.0% | Trump
by 2.0% | 2020-08-01
2020-08-31 | 2020-09-23
2020-09-26 17:37 |
2020-08-15 12:00 | Civiqs | 47.0% | 47.0% | TIED | 2020-08-13
2020-08-17 | 2020-08-21
2020-08-21 22:01 |
2020-08-12 00:00 | Morning Consult | 45.0% | 49.0% | Trump
by 4.0% | 2020-08-07
2020-08-16 | 2020-09-01
2020-09-01 16:23 |
2020-07-31 12:00 | TargetSmart | 47.0% | 46.0% | Biden
by 1.0% | 2020-07-28
2020-08-03 | 2020-08-21
2020-08-24 17:12 |
2020-07-23 00:00 | YouGov | 45.0% | 46.0% | Trump
by 1.0% | 2020-07-21
2020-07-24 | 2020-07-26
2020-07-26 18:17 |
2020-07-22 12:00 | Zogby w/4P | 43.0% | 41.0% | Biden
by 2.0% | 2020-07-21
2020-07-23 | 2020-08-05
2020-08-05 17:35 |
2020-07-22 00:00 | Morning Consult | 45.0% | 48.0% | Trump
by 3.0% | 2020-07-17
2020-07-26 | 2020-07-28
2020-07-28 07:07 |
2020-07-16 12:00 | SurveyMonkey LV [2] | 46.0% | 52.0% | Trump
by 6.0% | 2020-07-01
2020-07-31 | 2020-10-02
2020-10-04 02:48 |
2020-07-16 12:00 | SurveyMonkey RV [2] | 47.0% | 51.0% | Trump
by 4.0% | 2020-07-01
2020-07-31 | 2020-09-23
2020-09-25 07:08 |
2020-07-16 00:00 | Rasmussen w/Lean [2] | 50.0% | 46.0% | Biden
by 4.0% | 2020-07-15
2020-07-16 | 2020-07-21
2020-07-22 16:56 |
2020-07-16 00:00 | Rasmussen [2] | 47.0% | 43.0% | Biden
by 4.0% | 2020-07-15
2020-07-16 | 2020-07-21
2020-07-22 16:54 |
2020-07-05 00:00 | Bliss Institute | 46.0% | 42.0% | Biden
by 4.0% | 2020-06-24
2020-07-15 | 2020-08-03
2020-08-03 16:54 |
2020-06-20 12:00 | Quinnipiac | 46.0% | 45.0% | Biden
by 1.0% | 2020-06-18
2020-06-22 | 2020-06-24
2020-06-24 18:59 |
2020-06-19 12:00 | SurveyMonkey LV [2] | 49.0% | 50.0% | Trump
by 1.0% | 2020-06-08
2020-06-30 | 2020-10-02
2020-10-04 02:44 |
2020-06-19 12:00 | SurveyMonkey RV [2] | 50.0% | 48.0% | Biden
by 2.0% | 2020-06-08
2020-06-30 | 2020-09-23
2020-09-24 19:14 |
2020-06-01 00:00 | Fox News | 45.0% | 43.0% | Biden
by 2.0% | 2020-05-30
2020-06-02 | 2020-06-03
2020-06-04 02:52 |
2020-05-22 00:00 | Morning Consult | 42.0% | 50.0% | Trump
by 8.0% | 2020-05-17
2020-05-26 | 2020-07-28
2020-07-29 18:08 |
2020-05-09 12:00 | Emerson w/Lean [2] | 48.7% | 51.4% | Trump
by 2.7% | 2020-05-08
2020-05-10 | 2020-05-11
2020-05-11 23:11 |
2020-05-09 12:00 | Emerson [2] | 42.5% | 46.1% | Trump
by 3.6% | 2020-05-08
2020-05-10 | 2020-05-11
2020-05-11 23:07 |
2020-04-23 00:00 | Baldwin Wallace w/Probably [2] | 44.9% | 44.2% | Biden
by 0.7% | 2020-04-20
2020-04-25 | 2020-04-26
2020-04-27 17:15 |
2020-04-23 00:00 | Baldwin Wallace Definitely [2] | 31.1% | 32.2% | Trump
by 1.1% | 2020-04-20
2020-04-25 | 2020-04-26
2020-04-27 17:09 |
2020-03-21 12:00 | Baldwin Wallace w/Probably [2] | 42.9% | 47.2% | Trump
by 4.3% | 2020-03-17
2020-03-25 | 2020-03-26
2020-03-26 16:34 |
2020-03-21 12:00 | Baldwin Wallace Definitely [2] | 28.7% | 38.6% | Trump
by 9.9% | 2020-03-17
2020-03-25 | 2020-03-26
2020-03-26 16:32 |
2020-03-12 00:00 | Marist | 49.0% | 45.0% | Biden
by 4.0% | 2020-03-10
2020-03-13 | 2020-03-16
2020-03-16 18:22 |
2019-10-11 00:00 | PPP | 48.0% | 46.0% | Biden
by 2.0% | 2019-10-10
2019-10-11 | 2019-10-14
2019-10-14 18:20 |
2019-10-04 12:00 | Climate Nexus w/Lean [2] | 53.0% | 47.0% | Biden
by 6.0% | 2019-10-01
2019-10-07 | 2019-10-14
2019-10-14 20:13 |
2019-10-04 12:00 | Climate Nexus [2] | 48.0% | 42.0% | Biden
by 6.0% | 2019-10-01
2019-10-07 | 2019-10-14
2019-10-14 20:07 |
2019-10-01 00:00 | Emerson | 52.6% | 47.4% | Biden
by 5.2% | 2019-09-29
2019-10-02 | 2019-10-03
2019-10-03 16:52 |
2019-07-20 00:00 | Quinnipiac | 50.0% | 42.0% | Biden
by 8.0% | 2019-07-17
2019-07-22 | 2019-07-25
2019-07-25 19:05 |
2019-03-22 00:00 | Trump Internal (NBC) | 46.0% | 45.0% | Biden
by 1.0% | 2019-03-15
2019-03-28 | 2019-06-16
2019-06-16 18:16 |
2018-11-28 00:00 | PPP | 48.0% | 44.0% | Biden
by 4.0% | 2018-11-27
2018-11-28 | 2018-11-29
2019-03-04 06:12 |
2016-11-08 12:00 | Election2016 | 43.6% | 51.7% | REP
by 8.1% | 2016-11-08
2016-11-08 | 2016-11-08
2019-02-20 04:20 |
2012-11-06 12:00 | Election2012 | 50.7% | 47.7% | DEM
by 3.0% | 2012-11-06
2012-11-06 | 2012-11-06
2013-09-22 05:05 |
2008-11-04 12:00 | Election2008 | 51.5% | 46.9% | DEM
by 4.6% | 2008-11-04
2008-11-04 | 2008-11-04
2013-10-05 08:33 |
2004-11-02 12:00 | Election2004 | 48.7% | 50.8% | REP
by 2.1% | 2004-11-02
2004-11-02 | 2004-11-02
2013-10-14 07:00 |
2000-11-07 12:00 | Election2000 | 46.5% | 50.0% | REP
by 3.5% | 2000-11-07
2000-11-07 | 2000-11-07
2013-11-10 10:42 |
1996-11-06 12:00 | Election1996 | 47.4% | 41.0% | DEM
by 6.4% | 1996-11-06
1996-11-06 | 1996-11-06
2014-02-16 18:19 |
1992-11-03 12:00 | Election1992 | 40.2% | 38.4% | DEM
by 1.8% | 1992-11-03
1992-11-03 | 1992-11-03
2014-03-17 06:37 |
1988-11-08 12:00 | Election1988 | 44.2% | 55.0% | REP
by 10.9% | 1988-11-08
1988-11-08 | 1988-11-08
2014-05-17 19:40 |
1984-11-06 12:00 | Election1984 | 40.1% | 58.9% | REP
by 18.8% | 1984-11-06
1984-11-06 | 1984-11-06
2014-05-24 06:49 |
1980-11-04 12:00 | Election1980 | 40.9% | 51.5% | REP
by 10.6% | 1980-11-04
1980-11-04 | 1980-11-04
2014-10-17 19:04 |
The poll average generally uses the last 5 polls (by middate).
If there is tie for the middate of the oldest poll to be included, all polls with that middate are included.
If the result is exactly on the border between categories (0%, 5% or 10% margin) older polls are pulled in one by one until the result is clearly within a category.
When there are not enough actual polls for the poll average, results from prior presidential elections are used to fill in the average.
If a pollster releases multiple results based on the same sample they are weighted so collectively they count as "1 poll".
On state detail pages this is noted by an [N], shading in the listing, and a different color data point in the graph.
State win probabilities are calculated based on 2008-2016 data using the methodology in the January 2019 blog post titled "Polling Error vs Final Margin".