The county-level homework for Clay County, Florida — its 605 square miles, its 7 ZIP codes, its place inside the Jacksonville 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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The short version of this page: Clay County runs to 605 square miles, its weather is the record kept at JACKSONVILLE NAS, FL US — 944 heating degree days, 3,303 cooling degree days — and its systems live under a humid pressure. One call to TempReach USA, a referral service rather than an HVAC company, connects you with an independent local HVAC technician serving the county.
The climate figures on this page are the primary metro's NOAA 1991-2020 normals — climate normals recorded at JACKSONVILLE NAS, FL US, the station for the Jacksonville metro this county belongs to. An average year there brings 944 heating degree days, 3,303 cooling degree days, 47.6 inches of precipitation, 96.4 days at 90 degrees or above and 3.7 nights at or below freezing, around an average temperature of 71.4 degrees.
The moisture has an address pattern in Clay County too. Its 7 ZIP codes spread 605 square miles of housing across ground that sits south of the Jacksonville metro's centre, and the 47.6 inches of yearly rain recorded at JACKSONVILLE NAS, FL US do not fall on that ground evenly in their effects: the older districts drain and dry differently from the newer subdivisions, and crawl spaces, slabs and attics each hand the indoor air a different share of the outdoor wet. The systems answer with the same tools everywhere — airflow, drainage, honest sizing — weighted street by street.
Set the county inside its metro and the picture completes. Clay County answers to the Jacksonville metro's data — its housing profile, its problem ranking, its climate station — but the county is where that data touches ground: 5 communities, 7 ZIP codes, one county's worth of systems ageing under the record kept at JACKSONVILLE NAS, FL US. This page is that ground-level reading, kept separate from the metro page so the local detail is never averaged away.
A ZIP code in Clay County is a small climate-and-housing district of its own. The county's 7 codes — 32003, 32043, 32065, 32068 among them — all read the same normals from JACKSONVILLE NAS, FL 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.
Position first: Clay County lies south of the Jacksonville metro's centre, roughly 17 miles from the metro's centre as the map measures it, with Baker County, Duval County, Nassau County among the counties around it. Neighbourhood at county scale matters to heating and cooling because systems do not respect the border — the same subdivisions' building decades continue across it, the same cold snaps and heat waves examine both sides in the same night — while each county's page, this one included, keeps the local figures distinct.
The precipitation figure earns its place in Clay County's record: 47.6 inches a year at JACKSONVILLE NAS, FL US, falling through both the cooling months and the heating ones. Rain loads condensate systems in summer, tests outdoor units and venting in winter, and keeps the ground around the county's 7 ZIP codes cycling between wet and dry in a way that shows up in crawl spaces and condensate lines. Set beside 96.4 hot days and 3.7 freezing nights, it completes the picture of what the county's equipment actually lives in.
Name the ground and the work follows: in Clay County, the 5 listed communities — Lakeside, Oakleaf Plantation, Fleming Island, Bellair-Meadowbrook Terrace among them — hold the county's homes, and the homes hold its heating and cooling systems. The largest places supply the steadiest run of calls; the smaller communities supply the long drives and the systems fitted when those places were built. Either way, the county's 605 square miles are not read as one housing stock on this page, because on the ground they are not one: they are these communities, in this order, with these names.
The growth figures deserve their own reading in Clay County. 36.8% of the Jacksonville 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 32.7% 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.
Coverage, for Clay County, is a set of overlapping maps. The land map is 605 square miles. The address map is 7 ZIP codes and 5 listed communities. The service map is the Jacksonville metro, whose coverage the county sits inside — south of the Jacksonville metro's centre, roughly 17 miles from its centre. The weather map is one station's record, kept at JACKSONVILLE NAS, FL US. A home in this county lives on all four maps at once, and its heating and cooling needs are set by the combination.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
Population 31,548
Population 30,737
Population 29,351
Population 13,887
Population 13,465
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 Clay County and the Jacksonville 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