The county-level homework for Gibson County, Tennessee — its 603 square miles, its 9 ZIP codes, its place inside the Jackson metro's coverage. TempReach USA connects homeowners here with independent local HVAC technicians; the record behind the routing is on this page.
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Gibson County in one paragraph: 603 square miles in Tennessee, 9 ZIP codes, a heating climate pressure read from the normals at JACKSON MCKELLAR AP, TN US, and housing that answers 3,522 heating degree days against 1,717 cooling degree days a year. TempReach USA is a referral service, not an HVAC company — one call connects you with an independent local HVAC technician serving this county.
The climate figures on this page are the primary metro's NOAA 1991-2020 normals — climate normals recorded at JACKSON MCKELLAR AP, TN US, the station for the Jackson metro this county belongs to. An average year there brings 3,522 heating degree days, 1,717 cooling degree days, 53.93 inches of precipitation, 57.5 days at 90 degrees or above and 74.2 nights at or below freezing, around an average temperature of 60.0 degrees.
There is a housing arithmetic under Gibson County's heating season. The metro it belongs to built its largest share of homes between 1980 and 1999 — 31.7% of the stock — with the next share between 1960 and 1979 at 25.9%, around a median build year of 1983. Fitted into those eras, the county's furnaces and heat pumps meet 74.2 freezing nights at very different ages, and the heating diary divides accordingly: deep repair conversations in the older bands, first-replacement conversations in the newer ones.
Distance is the county fact the climate table leaves out. Gibson County's centroid lies north of the Jackson metro's centre, roughly 20 miles from the centre it is measured against, and that distance is travelled on every call routed here — out through the metro's nearer counties and into this one's 9 ZIP codes. Local knowledge in a county like this is partly a map held in the head: which roads, which communities, which end of the county a call is coming from.
A ZIP code in Gibson County is a small climate-and-housing district of its own. The county's 9 codes — 38233, 38316, 38330, 38338 among them — all read the same normals from JACKSON MCKELLAR AP, TN US, yet the systems inside them were installed in different decades, serve different house sizes, and fail in different orders. That is why this page prints the whole list rather than a summary: the codes are the finest division of the county the data supports, and they are the division the work itself follows.
The counties around Gibson County include Chester County, Crockett County, Madison County, and the whole group shares the Jackson metro's climate record from JACKSON MCKELLAR AP, TN US. What the neighbours do not share is this county's ground: 603 square miles, 9 ZIP codes, a centroid north of the Jackson metro's centre. Service patterns cross the county line freely — a cold week fills diaries on both sides of it — but the mix of housing and systems on each side is its own, which is why each county in the group carries its own page.
There is a geography to Gibson County's seasons that the totals flatten. The county lies north of the Jackson metro's centre, roughly 20 miles from the centre the record is measured against, and its 603 square miles do not meet a hot week or a cold snap in one voice: the ground nearer the metro and the ground at the county's far edge live the same 57.5 hot days and 74.2 freezing nights through different housing, fitted in different decades. One station record, one county, two ends of every season.
Communities across Gibson County include Milan, Humboldt, Trenton and Dyer — 7 listed places in all, spread over the county's 603 square miles in Tennessee. Each community's housing was built in its own decades, so the heating and cooling diary reads differently from one name on that list to the next: older systems and original ductwork in the long-settled places, matched fleets ageing together in the subdivisions, and additions and conversions in the communities still growing at the county's edges.
Spread the metro's eras over Gibson County's own ground and the housing paragraph becomes a map: 603 square miles, 9 ZIP codes at 67.0 square miles per code, and a stock whose largest band was built between 1980 and 1999 (31.7%), whose pre-1980 share runs to 46.5% and whose post-2000 share runs to 21.9%. The percentages are the metro's; the streets they land on are this county's, and a technician driving from one end of the county to the other drives through the bands in sequence.
One way to hold Gibson County in mind is as the local layer of a wider dataset. Above it sits the Jackson metro, with its Census housing profile and its NOAA station at JACKSON MCKELLAR AP, TN US. At this level sit the county's own numbers — 603 square miles, 3 neighbouring counties, 9 ZIP codes, 7 listed places — and below it, not published anywhere, sit the individual homes whose systems all of it describes. This page works at the middle level, where the data is still local enough to act on.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
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TempReach USA is not an HVAC company. We employ no heating or cooling technicians, we run no service trucks, and we do not carry out HVAC work of any kind. This website and its call center exist for one purpose: to connect homeowners with independent local heating and cooling professionals who serve their area. When you call the number on this site, your call is routed to such a professional. From that point, everything about the job belongs to that professional and to you: the assessment, the work itself, the scheduling, what you are charged, and the terms of any agreement you reach. The professional who takes your job is solely responsible for it. The technician who arrives at your home runs their own business; they are not an employee, agent or subcontractor of TempReach USA. Our part is the information on these pages — assembled from Census Bureau housing data and NOAA climate records for each metro — and the routing of your call. We state this plainly on purpose: you should know exactly who you are hiring before anyone picks up a wrench or a gauge.
One call connects you with an independent local heating and cooling professional serving Gibson County and the Jackson metro.
Call center hours: Mon-Fri 7:00 AM-10:00 PM ET | Sat 8:00 AM-10:00 PM ET | Sun 7:00 AM-9:00 PM ET