Atchison County, MO Insulation Payback
Atchison County attic insulation, by the numbers
Atchison County, Missouri is zone 5 under DOE's climate map (Cold), which means cold enough that heating, not cooling, is what decides the bill. 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 $1,780 a year — payback in roughly 2 years. Topping up the attic pays for itself fast here.
Heating vs. cooling in Atchison County
Split it out and it's roughly $1,618 a year on the heating side, $162 on cooling. By estimated insulation savings, Atchison County lands in the 71th percentile nationally. Zone 5 alone covers 745 counties in this dataset, and Atchison County comes in 336th by savings. Missouri averages $1,534/year across the counties tracked here; Atchison County comes in 16% higher.
The climate data behind this
The heating and cooling degree days behind this estimate — 6,051 HDD and 1,009 CDD (base 65°F, 1991-2020 normals) — come from TARKIO, MO US, the nearest NOAA station with published normals, 2.6 miles from Atchison County's center. Combined heating and cooling load puts Atchison County in the 73th percentile of this 3,162-county dataset. One local detail the R-value alone won't tell you: Atchison County sits in moisture regime A (humid), which can affect the vapor-barrier choice.
If the attic isn't bare
A shallower starting point changes the math: with R-11 already down, only the gap to R-49 needs filling, at roughly $2,280 for an estimated $260/year saved (~8.8-year payback). Call this borderline rather than a clear win.
Quotes and materials for this job
Real bids depend on how easy the attic is to reach and whether old insulation needs removing first, so treat $3,480 as a starting estimate for a Atchison County job, not a quote. Expect at least a $600 minimum charge from most contractors.
Where these figures come from
Atchison 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.