Idaho: Attic Insulation Payback by County

Idaho: 44 counties covered

Idaho spans DOE climate zones 5, 6. Across its 44 counties tracked here, an uninsulated attic saves an estimated $1,995/year on average once topped up to the recommended R-value — actual savings depend on each county's own heating and cooling degree days, shown below.

• Bear Lake County — zone 6, ~$2,382/yr
• Camas County — zone 6, ~$2,313/yr
• Elmore County — zone 5, ~$2,305/yr
• Bonneville County — zone 6, ~$2,281/yr
• Clark County — zone 6, ~$2,276/yr
• Caribou County — zone 6, ~$2,274/yr
• Blaine County — zone 6, ~$2,270/yr
• Teton County — zone 6, ~$2,269/yr
• Idaho County — zone 5, ~$2,246/yr
• Clearwater County — zone 5, ~$2,216/yr
• Butte County — zone 6, ~$2,204/yr
• Jefferson County — zone 6, ~$2,186/yr
• Fremont County — zone 6, ~$2,184/yr
• Valley County — zone 6, ~$2,138/yr
• Custer County — zone 6, ~$2,134/yr
• Lemhi County — zone 6, ~$2,123/yr
• Madison County — zone 6, ~$2,090/yr
• Boise County — zone 6, ~$2,079/yr
• Nez Perce County — zone 5, ~$2,042/yr
• Lincoln County — zone 5, ~$2,040/yr
• Shoshone County — zone 5, ~$2,016/yr
• Lewis County — zone 5, ~$2,015/yr
• Bannock County — zone 6, ~$1,986/yr
• Oneida County — zone 6, ~$1,954/yr
• Bingham County — zone 6, ~$1,952/yr
• Cassia County — zone 5, ~$1,949/yr
• Franklin County — zone 6, ~$1,944/yr
• Bonner County — zone 6, ~$1,932/yr
• Washington County — zone 5, ~$1,912/yr
• Gem County — zone 5, ~$1,874/yr
• Latah County — zone 5, ~$1,855/yr
• Adams County — zone 6, ~$1,843/yr
• Boundary County — zone 6, ~$1,842/yr
• Power County — zone 5, ~$1,838/yr
• Jerome County — zone 5, ~$1,829/yr
• Minidoka County — zone 5, ~$1,820/yr
• Twin Falls County — zone 5, ~$1,807/yr
• Benewah County — zone 5, ~$1,805/yr
• Kootenai County — zone 5, ~$1,759/yr
• Gooding County — zone 5, ~$1,681/yr
• Ada County — zone 5, ~$1,591/yr
• Payette County — zone 5, ~$1,540/yr
• Canyon County — zone 5, ~$1,537/yr
• Owyhee County — zone 5, ~$1,429/yr