Idaho Presidential Election Result By County by state by district by party list of counties Population area code Result History Seat Density FIPS Code Voter statistics
US, US Election Result August 6, 2016,Find Latest Idaho Presidential Election Result By County by state by district by party list of counties Population area code Result History Seat Density FIPS Code Voter statistics
Click on individual county to get more details about Idaho counties Presidential Election Result by Party ,Population History, Voter statistics
This is a list of 44 counties in the U.S. state of Idaho. Each county in Idaho has a license plate prefix, according to the first letter of the county name. The first county for a given letter is given #1, the second county #2, etc. For example, Ada and Adams are the only two counties with the letter 'A'. Since Ada comes before Adams alphabetically, Ada is '1A' while Adams is '2A.' There are four counties that start with the letter 'L': Latah, Lemhi, Lewis, and Lincoln; the license plate prefixes for these counties are 1L, 2L, 3L, and 4L, respectively.
| County | FIPS County Code | County seat | Established | Origin | Population | Area |
| Ada County | 1 | Boise | 1864 | Boise County | 3,92,365 | 1,055 sq mi |
| Adams County | 3 | Council | 1911 | Washington County | 3,976 | 1,365 sq mi |
| Bannock County | 5 | Pocatello | 1893 | Bingham County | 82,839 | 1,113 sq mi |
| Bear Lake County | 7 | Paris | 1893 | Oneida County | 5,986 | 971 sq mi |
| Benewah County | 9 | St. Maries | 1915 | Kootenai County | 9,285 | 776 sq mi |
| Bingham County | 11 | Blackfoot | 1885 | Oneida County | 45,607 | 2,095 sq mi |
| Blaine County | 13 | Hailey | 1895 | Alturas County | 21,376 | 2,645 sq mi |
| Boise County | 15 | Idaho City | 1864 | Original county | 7,028 | 1,902 sq mi |
| Bonner County | 17 | Sandpoint | 1907 | Kootenai County | 40,877 | 1,738 sq mi |
| Bonneville County | 19 | Idaho Falls | 1911 | Bingham County | 1,04,234 | 1,869 sq mi |
| Boundary County | 21 | Bonners Ferry | 1915 | Bonner | 10,972 | 1,269 sq mi |
| Butte County | 23 | Arco | 1917 | Bingham, Blaine, and Jefferson counties | 2,891 | 2,233 sq mi |
| Camas County | 25 | Fairfield | 1917 | Blaine County | 1,117 | 1,075 sq mi |
| Canyon County | 27 | Caldwell | 1892 | Ada County | 1,88,923 | 590 sq mi |
| Caribou County | 29 | Soda Springs | 1919 | Bannock County | 6,963 | 1,766 sq mi |
| Cassia County | 31 | Burley | 1879 | Owyhee County | 22,952 | 2,567 sq mi |
| Clark County | 33 | Dubois | 1919 | Fremont County | 982 | 1,765 sq mi |
| Clearwater County | 35 | Orofino | 1911 | Nez Perce County | 8,761 | 2,462 sq mi |
| Custer County | 37 | Challis | 1881 | Alturas and Lemhi counties | 4,368 | 4,926 sq mi |
| Elmore County | 39 | Mountain Home | 1889 | Alturas County | 27,038 | 3,078 sq mi |
| Franklin County | 41 | Preston | 1913 | Oneida County | 12,786 | 666 sq mi |
| Fremont County | 43 | Saint Anthony | 1893 | Bingham County | 13,242 | 1,867 sq mi |
| Gem County | 45 | Emmett | 1915 | Boise and Canyon counties | 16,719 | 563 sq mi |
| Gooding County | 47 | Gooding | 1913 | Lincoln County | 15,464 | 731 sq mi |
| Idaho County | 49 | Grangeville | 1864 | Original county | 16,267 | 8,485 sq mi |
| Jefferson County | 51 | Rigby | 1913 | Fremont County | 26,140 | 1,095 sq mi |
| Jerome County | 53 | Jerome | 1919 | Gooding and Lincoln counties | 22,374 | 600 sq mi |
| Kootenai County | 55 | Coeur d'Alene | 1864 | Nez Perce County | 1,38,494 | 1,245 sq mi |
| Latah County | 57 | Moscow | 1888 | Nez Perce County | 37,244 | 1,077 sq mi |
| Lemhi County | 59 | Salmon | 1869 | Idaho County | 7,936 | 4,564 sq mi |
| Lewis County | 61 | Nezperce | 1911 | Nez Perce County | 3,821 | 479 sq mi |
| Lincoln County | 63 | Shoshone | 1895 | Logan County | 5,208 | 1,206 sq mi |
| Madison County | 65 | Rexburg | 1913 | Fremont County | 37,536 | 472 sq mi |
| Minidoka County | 67 | Rupert | 1913 | Lincoln County | 20,069 | 760 sq mi |
| Nez Perce County | 69 | Lewiston | 1864 | Original county | 39,265 | 849 sq mi |
| Oneida County | 71 | Malad City | 1864 | Original County | 4,286 | 1,200 sq mi |
| Owyhee County | 73 | Murphy | 1863 | Original county | 11,526 | 7,678 sq mi |
| Payette County | 75 | Payette | 1917 | Canyon County | 22,623 | 408 sq mi |
| Power County | 77 | American Falls | 1913 | Bingham, Blaine, and Oneida counties | 7,817 | 1,406 sq mi |
| Shoshone County | 79 | Wallace | 1864 | Original county | 12,765 | 2,634 sq mi |
| Teton County | 81 | Driggs | 1915 | Bingham, Fremont, and Madison counties | 10,170 | 450 sq mi |
| Twin Falls County | 83 | Twin Falls | 1907 | Cassia County | 77,230 | 1,925 sq mi |
| Valley County | 85 | Cascade | 1917 | Boise and Idaho counties | 9,862 | 3,733 sq mi |
| Washington County | 87 | Weiser | 1879 | Ada County | 10,198 | 1,456 sq mi |
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