Noxubee County, MS Insulation Payback
Is attic insulation worth it in Noxubee County, MS?
DOE classifies Noxubee County as climate zone 3, mixed-humid — real heating and real cooling seasons both, roughly balanced across the year. Its recommended attic R-value for bare joists is R-49. For an attic around 1,000 square feet, closing the gap from R-2 to R-49 costs around $2,820 and saves an estimated $1,060 a year — payback in roughly 2.7 years. Few home upgrades pay back that quickly.
Where the savings come from
Heating accounts for about $744/year of that and cooling about $316/year — Noxubee County needs both. Nationally, Noxubee County ranks in the 21th percentile for insulation savings potential. Compared only against its own climate zone, Noxubee County places 333rd out of 690. Against Mississippi's own average of $1,022/year, Noxubee County runs 4% above that.
Where these numbers come from
Noxubee County's climate figures — 2,804 heating and 1,982 cooling degree days a year — are read from MACON 3N, MS US, 3.3 miles away, NOAA's nearest 1991-2020 normals station. Combined heating and cooling load puts Noxubee County in the 19th percentile of this 3,162-county dataset. 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.
Already have some insulation?
A shallower starting point changes the math: with R-11 already down, only the gap to R-38 needs filling, at roughly $1,620 for an estimated $143/year saved (~11.3-year payback). Whether that is worth it depends on how long you plan to stay.
Getting it done in Noxubee County
Real bids depend on how easy the attic is to reach and whether old insulation needs removing first, so treat $2,820 as a starting estimate for a Noxubee County job, not a quote. Expect at least a $600 minimum charge from most contractors.
Noxubee County's numbers, sourced
The methodology guide lists exactly which DOE and NOAA sources feed Noxubee 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.