Kandiyohi County, MN Insulation Payback
Kandiyohi County attic insulation, by the numbers
Kandiyohi County, Minnesota 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. For an attic around 1,000 square feet, closing the gap from R-2 to R-60 costs around $3,480 and saves an estimated $2,317 a year — payback in roughly 1.5 years. Topping up the attic pays for itself fast here.
The breakdown behind the number
Split it out and it's roughly $2,222 a year on the heating side, $96 on cooling. By estimated insulation savings, Kandiyohi County lands in the 94th percentile nationally. Zone 6 alone covers 459 counties in this dataset, and Kandiyohi County comes in 88th by savings. Minnesota averages $2,366/year across the counties tracked here; Kandiyohi County comes in 2% lower.
The climate data behind this
NOAA's WILLMAR WWTP, MN US station, 3.4 miles from Kandiyohi County, supplies the 8,309 HDD and 596 CDD this estimate runs on. By total degree days, Kandiyohi County sits at the 94th percentile nationally. One local detail the R-value alone won't tell you: Kandiyohi County sits in moisture regime A (humid), which can affect the vapor-barrier choice.
Already have some insulation?
Already have a few inches up there? Topping R-11 up to R-49 runs about $2,280 for about $338/year saved — roughly 6.7 years to break even. Worth doing on the numbers alone.
Getting it done in Kandiyohi 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 Kandiyohi County, not a bid - contractors typically charge a $600 minimum regardless of job size.
Where these figures come from
Kandiyohi 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.