Idaho 2020 Presidential Election Results by County
In 2020, the Republican candidate won 41 of Idaho's 44 counties.
| County | Winner | Party | Votes | Vote Share | Margin | Total Votes Cast |
|---|---|---|---|---|---|---|
| Ada | Donald J Trump | Republican | 130,699 | 50.4% | 3.9 pts | 259,389 |
| Adams | Donald J Trump | Republican | 1,941 | 75.1% | 52.2 pts | 2,586 |
| Bannock | Donald J Trump | Republican | 23,331 | 59.0% | 21.9 pts | 39,553 |
| Bear Lake | Donald J Trump | Republican | 2,914 | 87.9% | 77.3 pts | 3,315 |
| Benewah | Donald J Trump | Republican | 3,878 | 78.0% | 58.3 pts | 4,973 |
| Bingham | Donald J Trump | Republican | 15,295 | 76.5% | 55.9 pts | 19,996 |
| Blaine | Joseph R Biden Jr | Democratic | 8,919 | 67.1% | 36.8 pts | 13,289 |
| Boise | Donald J Trump | Republican | 3,485 | 72.3% | 47.3 pts | 4,820 |
| Bonner | Donald J Trump | Republican | 18,369 | 67.2% | 36.8 pts | 27,335 |
| Bonneville | Donald J Trump | Republican | 37,805 | 70.0% | 43.6 pts | 53,995 |
| Boundary | Donald J Trump | Republican | 4,937 | 78.2% | 58.9 pts | 6,313 |
| Butte | Donald J Trump | Republican | 1,202 | 84.9% | 71.7 pts | 1,415 |
| Camas | Donald J Trump | Republican | 507 | 67.2% | 47.5 pts | 754 |
| Canyon | Donald J Trump | Republican | 61,759 | 68.3% | 39.7 pts | 90,410 |
| Caribou | Donald J Trump | Republican | 2,906 | 85.1% | 72.5 pts | 3,416 |
| Cassia | Donald J Trump | Republican | 7,907 | 82.1% | 66.9 pts | 9,629 |
| Clark | Donald J Trump | Republican | 264 | 84.9% | 71.7 pts | 311 |
| Clearwater | Donald J Trump | Republican | 3,453 | 78.1% | 58.3 pts | 4,419 |
| Custer | Donald J Trump | Republican | 2,089 | 76.3% | 54.3 pts | 2,739 |
| Elmore | Donald J Trump | Republican | 7,246 | 71.0% | 45.5 pts | 10,205 |
| Franklin | Donald J Trump | Republican | 5,845 | 87.7% | 77.9 pts | 6,664 |
| Fremont | Donald J Trump | Republican | 5,548 | 82.6% | 67.7 pts | 6,719 |
| Gem | Donald J Trump | Republican | 7,951 | 79.8% | 61.7 pts | 9,958 |
| Gooding | Donald J Trump | Republican | 4,659 | 77.0% | 56.2 pts | 6,050 |
| Idaho | Donald J Trump | Republican | 7,826 | 81.5% | 65.2 pts | 9,602 |
| Jefferson | Donald J Trump | Republican | 12,099 | 85.4% | 73.6 pts | 14,173 |
| Jerome | Donald J Trump | Republican | 5,734 | 73.4% | 49.2 pts | 7,812 |
| Kootenai | Donald J Trump | Republican | 62,837 | 70.2% | 43.1 pts | 89,467 |
| Latah | Joseph R Biden Jr | Democratic | 10,236 | 49.8% | 3.7 pts | 20,570 |
| Lemhi | Donald J Trump | Republican | 3,592 | 75.8% | 54.0 pts | 4,738 |
| Lewis | Donald J Trump | Republican | 1,489 | 79.6% | 61.0 pts | 1,870 |
| Lincoln | Donald J Trump | Republican | 1,469 | 75.7% | 54.4 pts | 1,940 |
| Madison | Donald J Trump | Republican | 13,559 | 79.2% | 63.7 pts | 17,112 |
| Minidoka | Donald J Trump | Republican | 6,265 | 78.4% | 59.0 pts | 7,993 |
| Nez Perce | Donald J Trump | Republican | 13,738 | 65.5% | 33.6 pts | 20,967 |
| Oneida | Donald J Trump | Republican | 2,148 | 87.6% | 77.5 pts | 2,451 |
| Owyhee | Donald J Trump | Republican | 3,819 | 80.5% | 63.3 pts | 4,742 |
| Payette | Donald J Trump | Republican | 8,862 | 78.5% | 59.3 pts | 11,293 |
| Power | Donald J Trump | Republican | 2,116 | 68.8% | 40.7 pts | 3,074 |
| Shoshone | Donald J Trump | Republican | 4,216 | 69.7% | 41.7 pts | 6,049 |
| Teton | Joseph R Biden Jr | Democratic | 3,318 | 52.3% | 7.2 pts | 6,347 |
| Twin Falls | Donald J Trump | Republican | 25,897 | 70.9% | 45.2 pts | 36,501 |
| Valley | Donald J Trump | Republican | 3,947 | 55.9% | 13.7 pts | 7,063 |
| Washington | Donald J Trump | Republican | 4,154 | 77.7% | 57.7 pts | 5,344 |
Other Cycles
Frequently Asked Questions
Which party won the most counties in Idaho in 2020?
The Republican candidate won 41 of Idaho's 44 counties in 2020, with 3 counties going to the other major party.
Which Idaho county had the closest presidential result in 2020?
Latah had the closest margin in Idaho in 2020, with Joseph R Biden Jr (Democratic) winning by 3.7 points out of 20,570 total votes cast.
Which Idaho county had the widest presidential margin in 2020?
Franklin had the widest margin in Idaho in 2020, with Donald J Trump (Republican) winning by 77.9 points.
How many counties are included in Idaho's 2020 presidential results?
This page covers 44 counties in Idaho for the 2020 presidential election, based on MEDSL/EveryElectionResult.com county-level returns.