Gooding County, ID Insulation Payback
Attic insulation payback for Gooding County, ID
Gooding County, Idaho is zone 5 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. Going from R-2 to the recommended R-60 costs roughly $3,480 installed for a typical attic (about 1,000 sq ft), and pays for itself in about 2.1 years at an estimated $1,681/year saved. Hard to find a home improvement with a faster payback than this.
Where the savings come from
Of that, about $1,573/year comes from reduced heating and $108/year from reduced cooling load through the ceiling. Gooding County beats 65% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 745 counties DOE places in zone 5, Gooding County ranks 515th. Against Idaho's own average of $1,995/year, Gooding County runs 16% below that.
Where these numbers come from
The heating and cooling degree days behind this estimate — 5,883 HDD and 671 CDD (base 65°F, 1991-2020 normals) — come from HAGERMAN 2 SW, ID US, the nearest NOAA station with published normals, 12.3 miles from Gooding County's center. By total degree days, Gooding County sits at the 63th percentile nationally. DOE also classifies Gooding County as moisture regime B (dry) - ask a local contractor whether that changes the vapor-barrier approach for this job.
Already have some insulation?
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 $245/year saved (~9.3-year payback). It is close - the payback only just fits a reasonable timeframe.
Next steps for a Gooding County attic
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 Gooding County, not a bid - contractors typically charge a $600 minimum regardless of job size.
More on how this was built
Nothing here is a guess: the methodology guide names the DOE climate map and NOAA station data behind every number on this page. See the DIY vs. contractor guide for whether a job this size is realistic to do yourself.