Coffey County, KS Insulation Payback
Is attic insulation worth it in Coffey County, KS?
Coffey County, Kansas is zone 4 under DOE's climate map (Mixed-Humid), which means a genuine mix of cold winters and humid summers, with neither one dominating the bill. An uninsulated attic there should be built up to R-60. Topping up a typical 1,000-square-foot attic from bare joists (R-2) to R-60 runs an estimated $3,480, and saves about $1,539 a year in heating and cooling — a payback around 2.3 years. Few home upgrades pay back that quickly.
Heating vs. cooling in Coffey County
Heating accounts for about $1,294/year of that and cooling about $245/year — Coffey County needs both. Nationally, Coffey County ranks in the 55th percentile for insulation savings potential. Compared only against its own climate zone, Coffey County places 115th out of 825. Against Kansas's own average of $1,594/year, Coffey County runs 3% below that.
Where these numbers come from
NOAA's JOHN REDMOND LAKE, KS US station, 1.7 miles from Coffey County, supplies the 4,839 HDD and 1,527 CDD this estimate runs on. That combined heating-and-cooling load ranks Coffey County 1291st nationally by total degree days — the 59th percentile. Its moisture regime is classified humid, which matters for whether the attic needs a vapor retarder as part of the job — worth asking a contractor about locally.
If the attic isn't bare
Already have a few inches up there? Topping R-11 up to R-49 runs about $2,280 for about $225/year saved — roughly 10.2 years to break even. Whether that is worth it depends on how long you plan to stay.
Quotes and materials for this job
Get more than one quote before committing. Attic access and any needed air sealing move the price around, and most contractors won't take a job below roughly $600 regardless of size - worth asking upfront given Coffey County's estimated $1,539/year on the line.
Coffey County's numbers, sourced
The methodology guide lists exactly which DOE and NOAA sources feed Coffey County's numbers, and where the cost assumptions come from. See the DIY vs. contractor guide for whether a job this size is realistic to do yourself.