Montana: Attic Insulation Payback by County

Montana: 56 counties covered

Montana spans DOE climate zone 6. Across its 56 counties tracked here, an uninsulated attic saves an estimated $2,182/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.

• Sheridan County — zone 6, ~$2,607/yr
• Beaverhead County — zone 6, ~$2,570/yr
• Powell County — zone 6, ~$2,553/yr
• Glacier County — zone 6, ~$2,539/yr
• Daniels County — zone 6, ~$2,534/yr
• Roosevelt County — zone 6, ~$2,516/yr
• Silver Bow County — zone 6, ~$2,454/yr
• Sanders County — zone 6, ~$2,422/yr
• Liberty County — zone 6, ~$2,407/yr
• Wibaux County — zone 6, ~$2,381/yr
• Hill County — zone 6, ~$2,371/yr
• Valley County — zone 6, ~$2,338/yr
• Blaine County — zone 6, ~$2,322/yr
• Toole County — zone 6, ~$2,320/yr
• Meagher County — zone 6, ~$2,287/yr
• Granite County — zone 6, ~$2,261/yr
• Fallon County — zone 6, ~$2,257/yr
• Jefferson County — zone 6, ~$2,248/yr
• Garfield County — zone 6, ~$2,229/yr
• Carter County — zone 6, ~$2,223/yr
• Petroleum County — zone 6, ~$2,221/yr
• Prairie County — zone 6, ~$2,201/yr
• McCone County — zone 6, ~$2,191/yr
• Phillips County — zone 6, ~$2,181/yr
• Richland County — zone 6, ~$2,173/yr
• Wheatland County — zone 6, ~$2,158/yr
• Lewis and Clark County — zone 6, ~$2,146/yr
• Chouteau County — zone 6, ~$2,136/yr
• Deer Lodge County — zone 6, ~$2,135/yr
• Pondera County — zone 6, ~$2,131/yr
• Madison County — zone 6, ~$2,130/yr
• Flathead County — zone 6, ~$2,129/yr
• Custer County — zone 6, ~$2,126/yr
• Teton County — zone 6, ~$2,123/yr
• Stillwater County — zone 6, ~$2,107/yr
• Dawson County — zone 6, ~$2,104/yr
• Gallatin County — zone 6, ~$2,098/yr
• Judith Basin County — zone 6, ~$2,096/yr
• Cascade County — zone 6, ~$2,067/yr
• Broadwater County — zone 6, ~$2,058/yr
• Ravalli County — zone 6, ~$2,058/yr
• Carbon County — zone 6, ~$2,049/yr
• Big Horn County — zone 6, ~$2,047/yr
• Yellowstone County — zone 6, ~$2,044/yr
• Rosebud County — zone 6, ~$2,037/yr
• Musselshell County — zone 6, ~$2,001/yr
• Park County — zone 6, ~$1,984/yr
• Golden Valley County — zone 6, ~$1,977/yr
• Missoula County — zone 6, ~$1,975/yr
• Fergus County — zone 6, ~$1,974/yr
• Treasure County — zone 6, ~$1,967/yr
• Powder River County — zone 6, ~$1,962/yr
• Lake County — zone 6, ~$1,954/yr
• Sweet Grass County — zone 6, ~$1,908/yr
• Lincoln County — zone 6, ~$1,872/yr
• Mineral County — zone 6, ~$1,854/yr