Kossuth County, IA Insulation Payback
Kossuth County attic insulation, by the numbers
Kossuth County, Iowa is zone 6 under DOE's climate map (Cold), which means a real winter that drives most of the annual energy bill here. 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 $2,131 a year in heating and cooling — a payback around 1.6 years. Topping up the attic pays for itself fast here.
Where the savings come from
Split it out and it's roughly $2,024 a year on the heating side, $108 on cooling. By estimated insulation savings, Kossuth County lands in the 88th percentile nationally. Zone 6 alone covers 459 counties in this dataset, and Kossuth County comes in 262nd by savings. Iowa averages $1,985/year across the counties tracked here; Kossuth County comes in 7% higher.
The climate data behind this
Kossuth County's climate figures — 7,568 heating and 670 cooling degree days a year — are read from ALGONA, IA US, 10.1 miles away, NOAA's nearest 1991-2020 normals station. By total degree days, Kossuth County sits at the 89th percentile nationally. One local detail the R-value alone won't tell you: Kossuth County sits in moisture regime A (humid), which can affect the vapor-barrier choice.
If the attic isn't bare
If Kossuth County's attic already has 3-4 inches of old insulation (about R-11) rather than bare joists, the recommended target drops to R-49. That smaller top-up costs around $2,280 and saves an estimated $311/year — payback about 7.3 years. Worth doing on the numbers alone.
Getting it done in Kossuth County
Actual quotes will vary by attic access, existing debris, and whether the job needs air sealing first. Treat the $3,480 figure above as a planning number for Kossuth County, not a bid - contractors typically charge a $600 minimum regardless of job size.
Where these figures come from
Kossuth County's R-60 target and its degree-day figures both come from named federal sources - see the methodology guide for exactly which ones. The guide to what R-value actually means explains why R-60 is the target here specifically.