South Carolina: Attic Insulation Payback by County

South Carolina: 45 counties covered

South Carolina spans DOE climate zone 3. Across its 45 counties tracked here, an uninsulated attic saves an estimated $1,016/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.

Cherokee County — zone 3, ~$1,202/yr
York County — zone 3, ~$1,167/yr
Oconee County — zone 3, ~$1,147/yr
Chester County — zone 3, ~$1,142/yr
Union County — zone 3, ~$1,137/yr
Pickens County — zone 3, ~$1,119/yr
Laurens County — zone 3, ~$1,117/yr
Fairfield County — zone 3, ~$1,103/yr
Saluda County — zone 3, ~$1,098/yr
Newberry County — zone 3, ~$1,085/yr
Anderson County — zone 3, ~$1,076/yr
Abbeville County — zone 3, ~$1,073/yr
Spartanburg County — zone 3, ~$1,065/yr
McCormick County — zone 3, ~$1,060/yr
Chesterfield County — zone 3, ~$1,057/yr
Kershaw County — zone 3, ~$1,055/yr
Lancaster County — zone 3, ~$1,052/yr
Darlington County — zone 3, ~$1,043/yr
Dillon County — zone 3, ~$1,041/yr
Greenwood County — zone 3, ~$1,040/yr
Lee County — zone 3, ~$1,036/yr
Sumter County — zone 3, ~$1,035/yr
Greenville County — zone 3, ~$1,026/yr
Marlboro County — zone 3, ~$1,011/yr
Aiken County — zone 3, ~$1,004/yr
Clarendon County — zone 3, ~$999/yr
Marion County — zone 3, ~$995/yr
Florence County — zone 3, ~$979/yr
Edgefield County — zone 3, ~$978/yr
Williamsburg County — zone 3, ~$973/yr
Richland County — zone 3, ~$972/yr
Allendale County — zone 3, ~$970/yr
Barnwell County — zone 3, ~$952/yr
Dorchester County — zone 3, ~$950/yr
Horry County — zone 3, ~$948/yr
Bamberg County — zone 3, ~$940/yr
Georgetown County — zone 3, ~$939/yr
Orangeburg County — zone 3, ~$938/yr
Colleton County — zone 3, ~$937/yr
Berkeley County — zone 3, ~$936/yr
Calhoun County — zone 3, ~$928/yr
Jasper County — zone 3, ~$869/yr
Hampton County — zone 3, ~$846/yr
Beaufort County — zone 3, ~$840/yr
Charleston County — zone 3, ~$821/yr