Earlier today, our good friend kos noted that President-elect Barack Obama improved on John Kerry's 2004 performance in all except four states. Idaho, which scored a D +12, was actually among the more improved states in the country.
Based on this I decided to drill down to the county level in Idaho and see what happened there. The results are fascinating. The margin gains in Idaho favored Obama in 43 of 44 counties. Only Lemhi County (R +3) went the other direction.
The best margin gain was in Teton County, which posted a D +23 and flipped blue for perhaps the first time ever. Elmore County was right behind at D +20. Although still not terribly competitive, the margins are no longer ridiculous there.
Other notable Democratic margin gains were Lincoln County (D +18), Ada County (D +17), Power County (D +17), Camas County (D +15) and Canyon County (D +15). In Blaine County, the only county Kerry won in 2004, Obama still managed a D +14, indicating the folks along Highway 75 are moving blue as strongly as ever.
In addition to Teton County, Latah County flipped blue as well. Latah was the only Bush county in 2004 where the margin of victory was under 10 points. In 2008 there were three McCain counties decided by less than 10 points: Shoshone (8 points), Valley (7 points), and Ada (6 points).
There's still a lot of work to do. For example, while Madison County was a D +12, it was still a 73-point McCain win. Several other counties, mainly in eastern Idaho, are still posting insane red blowout numbers, just not as bad as four years ago. Even so, these figures indicate improved Democratic strength is a statewide phenomenon.
The margin gains by county are as follows:
Ada - D +17
Adams - D +10
Bannock - D +12
Bear Lake - D +2
Benewah - D +12
Bingham - D +10
Blaine - D +14
Boise - D +12
Bonner - D +5
Bonneville - D +13
Boundary - D +6
Butte - D +2
Camas - D +15
Canyon - D +15
Caribou - D +6
Cassia - D +5
Clark - D +9
Clearwater - D +7
Custer - D +5
Elmore - D +20
Franklin - D +9
Fremont - D +11
Gem - D +10
Gooding - D +9
Idaho - D +6
Jefferson - D +8
Jerome - D +13
Kootenai - D +8
Latah - D +9 (pickup)
Lemhi - R +3
Lewis - D +7
Lincoln - D +18
Madison - D +12
Minidoka - D +9
Nez Perce - D +7
Oneida - D +8
Owyhee - D +9
Payette - D +9
Power - D +17
Shoshone - D +3
Teton - D +23 (pickup)
Twin Falls - D +13
Valley - D +14
Washington - D +9