One county, read on its own ground: Jackson County, Mississippi — 6 communities, 8 ZIP codes, 3 neighbouring counties, inside the Gulfport–Biloxi metro. TempReach USA connects you with an independent local HVAC technician serving the county, and this page is the homework behind the connection.
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In brief: 723 square miles of Mississippi, a climate read from GULFPORT - BILOXI AP, MS US's normals, and a humid pressure as the county's dominant one — 1,507 heating degree days set against 2,749 cooling degree days in an average year. TempReach USA does not do the work itself; it is a referral service, and one call connects you with an independent local HVAC technician serving Jackson County.
Every climate number on this page comes from one record: the NOAA 1991-2020 normals at GULFPORT - BILOXI AP, MS US, the primary metro's station, read here for Jackson County. The record's shape is 1,507 heating degree days set against 2,749 cooling degree days, 62.82 inches of precipitation in an average year, 69.2 days reaching 90 degrees or above and 15.8 nights at or below freezing, with an average temperature of 68.3 degrees across the year.
Read the climate record and the county's pressure names itself. Precipitation of 62.82 inches a year at GULFPORT - BILOXI AP, MS US, layered over 2,749 cooling degree days, means Jackson County's heating and cooling is moisture management wearing a temperature costume. Homes across its 723 square miles ask their systems to dry the air as much as to cool it — and the systems that answer well are the ones sized, charged and drained with that double duty in mind.
The county's neighbours frame it as well: Hancock County, Harrison County, Stone County are among the 3 counties on its neighbour list, and together they form the working ground around Jackson County's own 723 square miles. A system near a shared border lives in both counties' weather at once, whichever page describes its home — the pages divide the map so the record can be read county by county, and the links between them keep the whole in view.
Count the coverage from the codes upward: 39553, 39562 and 39563 are the first codes on Jackson County's list of 8, spread across its 723 square miles in Mississippi. No two of those codes hold quite the same housing — one may be a settled community's streets, the next newer subdivisions, the next open county ground — so the same climate record produces a different run of calls inside each. The full list is printed on this page; the diary is written code by code.
Jackson County sits alongside Hancock County, Harrison County, Stone County in the Gulfport–Biloxi area — 3 neighbouring counties share its coverage map in all, and the borders between them are lines on a map rather than changes in the weather. The same station record travels across those borders, the same housing decades appear on both sides, and a technician's ground here is really the cluster: this county and its neighbours, read together, with this page keeping Jackson County's own share of the picture separate.
A service calendar for Jackson County can be written straight from its station record. Spring belongs to the cooling plant: 2,749 cooling degree days are coming, and the systems that will carry them are checked before the first of the 69.2 hot days arrives. Autumn belongs to the heating plant, ahead of 1,507 heating degree days and 15.8 freezing nights. The middle weeks belong to the unglamorous work — filters, drains, duct joints — that both seasons quietly depend on. The record at GULFPORT - BILOXI AP, MS US does not change much year to year, which is what makes the calendar worth keeping.
The county's place list tells its own story. Pascagoula (21,812 residents) is the largest of the 6 communities the record names for Jackson County, with Gautier (19,026 residents) behind it and Ocean Springs and Moss Point further down the list. A technician working this county works all of those places in a single week, and the systems change character with the address: the era a community was built in decides whether the call is about an ageing furnace, a condenser at the end of its summers, or ductwork that predates the equipment it now serves.
The growth figures deserve their own reading in Jackson County. 37.1% of the Gulfport–Biloxi metro's homes were built since 2000 — the largest or near-largest band in many of its counties — and those homes are now old enough that their first systems are reaching replacement age together, subdivision by subdivision. Set against them, the 37.1% of the metro's stock that predates 1980 is deep into its second and third systems. One county, two replacement waves running at once, and a maintenance diary that has to serve both.
There is a reason the coverage on this page is described county-first. Heating and cooling demand is generated house by house, and houses sit in counties: in Jackson County's case, across 723 square miles that hold 6 listed communities and 8 ZIP codes, east of the Gulfport–Biloxi metro's centre. The metro frame matters — the station, the housing eras, the problem ranking all come from it — but the county is where the frame touches the ground, and the ground is where the systems are.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
Population 21,812
Population 19,026
Population 18,561
Population 12,066
Population 8,193
Population 6,517
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 Jackson County and the Gulfport–Biloxi 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