Tennessee: Attic Insulation Payback by County

Tennessee: 95 counties covered

Tennessee spans DOE climate zones 3, 4. Across its 95 counties tracked here, an uninsulated attic saves an estimated $1,258/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.

• Claiborne County — zone 4, ~$1,423/yr
• Johnson County — zone 4, ~$1,395/yr
• Scott County — zone 4, ~$1,370/yr
• Sumner County — zone 4, ~$1,355/yr
• Campbell County — zone 4, ~$1,331/yr
• Obion County — zone 4, ~$1,331/yr
• Union County — zone 4, ~$1,329/yr
• Grundy County — zone 4, ~$1,328/yr
• Jefferson County — zone 4, ~$1,327/yr
• Robertson County — zone 4, ~$1,325/yr
• Clay County — zone 4, ~$1,320/yr
• Jackson County — zone 4, ~$1,320/yr
• Unicoi County — zone 4, ~$1,320/yr
• Washington County — zone 4, ~$1,320/yr
• Cumberland County — zone 4, ~$1,318/yr
• Carter County — zone 4, ~$1,312/yr
• Morgan County — zone 4, ~$1,311/yr
• Van Buren County — zone 4, ~$1,310/yr
• DeKalb County — zone 4, ~$1,307/yr
• Greene County — zone 4, ~$1,303/yr
• Hancock County — zone 4, ~$1,301/yr
• Hawkins County — zone 4, ~$1,301/yr
• Fentress County — zone 4, ~$1,300/yr
• Henry County — zone 4, ~$1,300/yr
• Houston County — zone 4, ~$1,296/yr
• Weakley County — zone 4, ~$1,296/yr
• Lake County — zone 3, ~$1,294/yr
• Cheatham County — zone 4, ~$1,293/yr
• Macon County — zone 4, ~$1,293/yr
• Pickett County — zone 4, ~$1,288/yr
• Coffee County — zone 4, ~$1,287/yr
• Sullivan County — zone 4, ~$1,287/yr
• Montgomery County — zone 4, ~$1,285/yr
• Wilson County — zone 4, ~$1,285/yr
• Giles County — zone 4, ~$1,281/yr
• Overton County — zone 4, ~$1,280/yr
• Putnam County — zone 4, ~$1,277/yr
• Hamblen County — zone 4, ~$1,275/yr
• Rhea County — zone 4, ~$1,275/yr
• Stewart County — zone 4, ~$1,275/yr
• Carroll County — zone 4, ~$1,273/yr
• Maury County — zone 4, ~$1,273/yr
• Sevier County — zone 4, ~$1,272/yr
• Gibson County — zone 4, ~$1,267/yr
• Hickman County — zone 4, ~$1,267/yr
• Knox County — zone 4, ~$1,265/yr
• Moore County — zone 4, ~$1,263/yr
• Trousdale County — zone 4, ~$1,262/yr
• Rutherford County — zone 4, ~$1,261/yr
• Chester County — zone 3, ~$1,259/yr
• Roane County — zone 4, ~$1,259/yr
• White County — zone 4, ~$1,257/yr
• Perry County — zone 4, ~$1,252/yr
• Smith County — zone 4, ~$1,252/yr
• Wayne County — zone 4, ~$1,252/yr
• Tipton County — zone 3, ~$1,249/yr
• Cannon County — zone 4, ~$1,245/yr
• Humphreys County — zone 4, ~$1,245/yr
• Madison County — zone 3, ~$1,245/yr
• Marshall County — zone 4, ~$1,245/yr
• Dyer County — zone 3, ~$1,243/yr
• Crockett County — zone 3, ~$1,237/yr
• Dickson County — zone 4, ~$1,236/yr
• Henderson County — zone 3, ~$1,236/yr
• Williamson County — zone 4, ~$1,234/yr
• Lewis County — zone 4, ~$1,231/yr
• Davidson County — zone 4, ~$1,230/yr
• Meigs County — zone 4, ~$1,228/yr
• McMinn County — zone 4, ~$1,227/yr
• Loudon County — zone 4, ~$1,224/yr
• Benton County — zone 4, ~$1,221/yr
• Grainger County — zone 4, ~$1,220/yr
• Hamilton County — zone 4, ~$1,219/yr
• Hardeman County — zone 3, ~$1,217/yr
• Haywood County — zone 3, ~$1,213/yr
• Lawrence County — zone 4, ~$1,212/yr
• Cocke County — zone 4, ~$1,209/yr
• Shelby County — zone 3, ~$1,204/yr
• Lauderdale County — zone 3, ~$1,203/yr
• Decatur County — zone 4, ~$1,200/yr
• Monroe County — zone 4, ~$1,200/yr
• Bedford County — zone 4, ~$1,199/yr
• McNairy County — zone 3, ~$1,198/yr
• Blount County — zone 4, ~$1,196/yr
• Anderson County — zone 4, ~$1,193/yr
• Bradley County — zone 4, ~$1,177/yr
• Polk County — zone 4, ~$1,177/yr
• Franklin County — zone 4, ~$1,175/yr
• Bledsoe County — zone 4, ~$1,161/yr
• Fayette County — zone 3, ~$1,154/yr
• Lincoln County — zone 4, ~$1,151/yr
• Hardin County — zone 3, ~$1,145/yr
• Warren County — zone 4, ~$1,130/yr
• Marion County — zone 4, ~$1,126/yr
• Sequatchie County — zone 4, ~$1,126/yr