Stark County, ND Insulation Payback
Stark County, ND: what topping up your attic actually costs
Stark County, North Dakota 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. 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 $2,332/year saved. That's about as fast as attic paybacks get.
Heating vs. cooling in Stark County
The estimated savings split roughly $2,265/year heating, $67/year cooling. Out of every 100 US counties tracked here, Stark County's savings potential beats roughly 94 of them. Within zone 6 specifically, it ranks 78th of 459 counties by estimated savings. North Dakota averages $2,496/year across the counties tracked here; Stark County comes in 7% lower.
Where these numbers come from
Stark County's climate figures — 8,471 heating and 419 cooling degree days a year — are read from THEODORE ROOSEVELT AP, ND US, 6.5 miles away, NOAA's nearest 1991-2020 normals station. Combined heating and cooling load puts Stark County in the 94th percentile of this 3,162-county dataset. Stark County falls in DOE's moisture regime A (humid), a detail that affects vapor-barrier recommendations more than the R-value target itself.
If the attic isn't bare
If Stark 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 $340/year — payback about 6.7 years. That is a solid payback as home upgrades go.
Getting it done in Stark County
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 Stark 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.