Bear Lake County, ID Insulation Payback
Bear Lake County, ID: what topping up your attic actually costs
Bear Lake County, Idaho is zone 6 under DOE's climate map (Cold), which means winters that dominate the energy bill, with cooling a minor factor. 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 1.5 years at an estimated $2,382/year saved. That's about as fast as attic paybacks get.
Where the savings come from
The estimated savings split roughly $2,360/year heating, $22/year cooling. Out of every 100 US counties tracked here, Bear Lake County's savings potential beats roughly 95 of them. Within zone 6 specifically, it ranks 39th of 459 counties by estimated savings. Idaho averages $1,995/year across the counties tracked here; Bear Lake County comes in 19% higher.
The climate data behind this
The heating and cooling degree days behind this estimate — 8,825 HDD and 139 CDD (base 65°F, 1991-2020 normals) — come from BERN, ID US, the nearest NOAA station with published normals, 4.5 miles from Bear Lake County's center. That combined heating-and-cooling load ranks Bear Lake County 172nd nationally by total degree days — the 95th percentile. Bear Lake County falls in DOE's moisture regime B (dry), a detail that affects vapor-barrier recommendations more than the R-value target itself.
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 $347/year saved (~6.6-year payback). That is a solid payback as home upgrades go.
Next steps for a Bear Lake County attic
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 Bear Lake County job, not a quote. Expect at least a $600 minimum charge from most contractors.
Nothing here is a guess
Every figure on this page traces to DOE/IECC climate zones and NOAA degree-day normals, documented in the methodology guide. The guide to what R-value actually means explains why R-60 is the target here specifically.