Stevens County, KS Insulation Payback
Attic insulation payback for Stevens County, KS
DOE classifies Stevens County as climate zone 4, mixed-humid — real heating and real cooling seasons both, roughly balanced across the year. Its recommended attic R-value for bare joists is 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 2.3 years at an estimated $1,492/year saved. Hard to find a home improvement with a faster payback than this.
The breakdown behind the number
Of that, about $1,275/year comes from reduced heating and $217/year from reduced cooling load through the ceiling. Stevens County beats 52% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 825 counties DOE places in zone 4, Stevens County ranks 187th. Against Kansas's own average of $1,594/year, Stevens County runs 6% below that.
Stevens County's actual weather, not a national average
NOAA's HUGOTON, KS US station, 2.9 miles from Stevens County, supplies the 4,769 HDD and 1,349 CDD this estimate runs on. By total degree days, Stevens County sits at the 54th percentile nationally. DOE also classifies Stevens County as moisture regime A (humid) - 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 $218/year saved (~10.5-year payback). It is close - the payback only just fits a reasonable timeframe.
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 Stevens County job, not a quote. Expect at least a $600 minimum charge from most contractors.
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.