Hancock County, IN Insulation Payback
Is attic insulation worth it in Hancock County, IN?
DOE classifies Hancock County as climate zone 5, cold — winters that dominate the energy bill, with cooling a minor factor. 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 2.1 years at an estimated $1,679/year saved. Few home upgrades pay back that quickly.
The breakdown behind the number
Heating accounts for about $1,526/year of that and cooling about $153/year — Hancock County needs both. Nationally, Hancock County ranks in the 65th percentile for insulation savings potential. Compared only against its own climate zone, Hancock County places 523rd out of 745. Against Indiana's own average of $1,634/year, Hancock County runs 3% above that.
The climate data behind this
The heating and cooling degree days behind this estimate — 5,706 HDD and 953 CDD (base 65°F, 1991-2020 normals) — come from GREENFIELD, IN US, the nearest NOAA station with published normals, 2.6 miles from Hancock County's center. By total degree days, Hancock County sits at the 65th percentile nationally. Its moisture regime is classified humid, which matters for whether the attic needs a vapor retarder as part of the job — worth asking a contractor about locally.
The smaller top-up scenario
Already have a few inches up there? Topping R-11 up to R-49 runs about $2,280 for about $245/year saved — roughly 9.3 years to break even. Whether that is worth it depends on how long you plan to stay.
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 Hancock County job, not a quote. Expect at least a $600 minimum charge from most contractors.
Hancock County's numbers, sourced
The methodology guide lists exactly which DOE and NOAA sources feed Hancock County's numbers, and where the cost assumptions come from. See the DIY vs. contractor guide for whether a job this size is realistic to do yourself.