Marion County, KS Insulation Payback
Attic insulation payback for Marion County, KS
Marion County, Kansas is zone 4 under DOE's climate map (Mixed-Humid), which means a genuine mix of cold winters and humid summers, with neither one dominating the bill. An uninsulated attic there should be built up to R-60. Topping up a typical 1,000-square-foot attic from bare joists (R-2) to R-60 runs an estimated $3,480, and saves about $1,538 a year in heating and cooling — a payback around 2.3 years. Hard to find a home improvement with a faster payback than this.
Heating vs. cooling in Marion County
Of that, about $1,263/year comes from reduced heating and $274/year from reduced cooling load through the ceiling. Marion County beats 55% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 825 counties DOE places in zone 4, Marion County ranks 119th. Against Kansas's own average of $1,594/year, Marion County runs 4% below that.
Marion County's actual weather, not a national average
Marion County's climate figures — 4,725 heating and 1,707 cooling degree days a year — are read from MARION RSVR, KS US, 1.9 miles away, NOAA's nearest 1991-2020 normals station. By total degree days, Marion County sits at the 60th percentile nationally. DOE also classifies Marion County as moisture regime A (humid) - ask a local contractor whether that changes the vapor-barrier approach for this job.
Already have some insulation?
Already have a few inches up there? Topping R-11 up to R-49 runs about $2,280 for about $224/year saved — roughly 10.2 years to break even. It is close - the payback only just fits a reasonable timeframe.
Getting it done in Marion County
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 Marion 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.