Galveston County, Texas, read at county level: 18 ZIP codes and 3 communities inside the Houston metro's coverage, with the climate record and service pressures set out below. TempReach USA connects you with an independent local HVAC technician serving the county.
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The short version of this page: Galveston County runs to 379 square miles, its weather is the record kept at HOUSTON INTERCONT AP, TX US — 1,266 heating degree days, 3,288 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.
Climate on this page is not a national average wearing a county's name. It is the specific record at HOUSTON INTERCONT AP, TX US: 70.5 degrees as the average temperature, 51.84 inches of precipitation, 111.3 hot days and 10.1 freezing nights in the average year, 1,266 heating degree days against 3,288 cooling degree days. Galveston County — 379 square miles, 18 ZIP codes, 3 listed communities — lives inside that record, and its heating and cooling systems are sized, serviced and replaced inside it too.
Position sharpens Galveston County's moisture problem. The county lies southeast of the Houston metro's centre, roughly 52 miles from the metro's centre, and the air that reaches its far edge has crossed the whole Houston metro before it arrives — carrying the season's humidity into 379 square miles of homes whose systems must wring it out again, through 111.3 hot days a year. Neighbouring ground — Montgomery County, San Jacinto County, Waller County are among the counties around it — reads the same record; the wringing, house by house, is local.
The county's neighbours frame it as well: Montgomery County, San Jacinto County, Waller County are among the 9 counties on its neighbour list, and together they form the working ground around Galveston County's own 379 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.
There is a scale fact hidden in Galveston County's ZIP codes: 18 codes across 379 square miles works out to 21.1 square miles per code, which makes a service call here a matter of ground as well as of systems. The codes on the metro-facing side of the county — the county sits southeast of the Houston metro's centre — and the codes at its far edge hold different ground, but both ends ask the same climate questions of their heating and cooling, at different distances.
The counties around Galveston County include Montgomery County, San Jacinto County, Waller County, and the whole group shares the Houston metro's climate record from HOUSTON INTERCONT AP, TX US. What the neighbours do not share is this county's ground: 379 square miles, 18 ZIP codes, a centroid southeast of the Houston 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.
The county's year divides by load. At one end, 111.3 days at 90 degrees or above pull the cooling season into its long peak; at the other, 10.1 nights at or below freezing do the same for heating; between them sit the shoulder weeks when neither plant runs hard. An average temperature of 70.5 degrees at HOUSTON INTERCONT AP, TX US is what those two ends average out to, and 51.84 inches of precipitation spread across the year decide how much of the cooling season is also a moisture season. Galveston County's households plan around that division — service ahead of the taller peak, filters and checks in the shoulders — whether they name it or not.
Galveston County is a county of distinct communities rather than one continuous town: League City, Texas City, Galveston and its remaining communities are among the 3 places on its record, each with its own building era and its own stock of systems. Position plays its part as well — the county sits southeast of the Houston metro's centre, so its communities meet the Houston metro's weather at slightly different distances from the centre — but it is the place list that a service diary follows, name by name, through the year.
Census figures give Galveston County's heating and cooling its proportions. The metro it belongs to counts 2,839,496 housing units across 2,601,888 households, 61.2% of them owner-occupied, and the era mix runs 9.9% before 1960, 22.7% from 1960 to 1979, 27.4% from 1980 to 1999 and 40.0% since 2000. A county inside that metro inherits the mix in its own proportions — which is why two homes on the same Galveston County street, built forty years apart, can need entirely different conversations from the same technician.
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 Galveston County's case, across 379 square miles that hold 3 listed communities and 18 ZIP codes, southeast of the Houston 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 114,885
Population 54,159
Population 53,348
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 Galveston County and the Houston 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