The county-level homework for Smith County, Texas — its 921 square miles, its 15 ZIP codes, its place inside the Tyler 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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In brief: 921 square miles of Texas, a climate read from TYLER POUNDS FLD, TX US's normals, and a cooling pressure as the county's dominant one — 2,072 heating degree days set against 2,685 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 Smith County.
Every climate number on this page comes from one record: the NOAA 1991-2020 normals at TYLER POUNDS FLD, TX US, the primary metro's station, read here for Smith County. The record's shape is 2,072 heating degree days set against 2,685 cooling degree days, 42.1 inches of precipitation in an average year, 98.1 days reaching 90 degrees or above and 29.1 nights at or below freezing, with an average temperature of 66.6 degrees across the year.
Station figures only tell half of Smith County's cooling story; the housing tells the rest. An average temperature of 66.6 degrees and 42.1 inches of rain a year at TYLER POUNDS FLD, TX US describe the air the county's systems breathe, while the stock itself — spread across the county's listed communities and the roads between them — decides how hard each system works to change that air indoors. Where the homes are older the load rides on ageing coils; where they are newer it rides on matched fleets installed in the same building seasons. Both diaries peak in the same weeks.
Distance is the county fact the climate table leaves out. Smith County's centroid lies close to the centre of the Tyler metro, roughly 0 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 15 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.
15 ZIP codes reach into Smith County's 921 square miles, among them 75701, 75702, 75703, 75704 — an average of 61.4 square miles of county ground per code. The codes are more than a mailing grid here: they are how the county's service ground divides in practice, each code holding its own mix of housing eras, its own streets of systems ageing on their own schedules. A call in one code and a call in the next can be the same fault in different decades of house.
On this coverage map Smith County stands without a listed neighbour — the record names no adjoining counties beside it inside the Tyler metro, so the county's 921 square miles are read on their own terms here: their own position close to the centre of the Tyler metro, their own ZIP codes, their own share of the metro's climate record. The systems in its homes face the same seasons as the rest of the metro; the ground they face them on is this county's alone.
Consider what one year asks of a system in Smith County: a cooling season measured at 2,685 degree days, a heating season at 2,072, 98.1 days of serious heat and 29.1 freezing nights, and 42.1 inches of precipitation working on every outdoor unit through all of it. No single figure is remarkable; the combination is the county's climate, and it is the combination a system has to survive for fifteen or twenty years. The service patterns described on this page are that arithmetic, playing out across 921 square miles of housing.
Communities across Smith County include Tyler, Whitehouse, Lindale and Hideaway — 10 listed places in all, spread over the county's 921 square miles in Texas. 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.
The county's position frames its housing as well. Smith County lies close to the centre of the Tyler metro, roughly 0 miles out, and the metro's era mix — 31.8% built since 2000, 25.7% between 1980 and 1999, median year 1986 — reads at this distance with a county accent: the shares nearer the centre and the shares at the edge were platted in different decades of the metro's growth. Which band a given Smith County street belongs to is a local fact; that the bands exist, in these proportions, is the Census record this page is built on.
One way to hold Smith County in mind is as the local layer of a wider dataset. Above it sits the Tyler metro, with its Census housing profile and its NOAA station at TYLER POUNDS FLD, TX US. At this level sit the county's own numbers — 921 square miles, 0 neighbouring counties, 15 ZIP codes, 10 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.
Population 107,718
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Population 3,259
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Population 1,055
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Population 522
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 Smith County and the Tyler 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