Yakima County heating and cooling, county by county: 4,295 square miles of Washington lying close to the centre of the Yakima metro, 20 ZIP codes, and a climate record read from YAKIMA AIR TERMINAL, WA US. TempReach USA connects you with an independent local HVAC technician; this page sets out the county's own figures.
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The short version of this page: Yakima County runs to 4,295 square miles, its weather is the record kept at YAKIMA AIR TERMINAL, WA US — 5,756 heating degree days, 606 cooling degree days — and its systems live under a heating 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.
One record, one county: the normals at YAKIMA AIR TERMINAL, WA US — 5,756 heating degree days, 606 cooling degree days, 8.01 inches of precipitation, an average temperature of 50.8 degrees — applied to Yakima County's own 4,295 square miles and its 20 ZIP codes. The figures are the Yakima metro's; the ground they are applied to, lying close to the centre of the Yakima metro, is this county's alone, and this section reads the two together.
Yakima County is heating country by the numbers: 5,756 heating degree days a year, 147.4 freezing nights, and homes spread over 4,295 square miles all asking their systems the same question on the same January night. The cooling half of the equipment matters — 606 cooling degree days is not nothing — but it is the heating load that decides which systems fail, and when. Local technicians read the county that way: autumn tune-ups, honest conversations about ageing furnaces and heat exchangers, and vans stocked for the cold weeks.
Distance is the county fact the climate table leaves out. Yakima County's centroid lies close to the centre of the Yakima 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 20 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.
20 ZIP codes reach into Yakima County's 4,295 square miles, among them 98901, 98902, 98903, 98908 — an average of 214.7 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 Yakima County stands without a listed neighbour — the record names no adjoining counties beside it inside the Yakima metro, so the county's 4,295 square miles are read on their own terms here: their own position close to the centre of the Yakima 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.
A service calendar for Yakima County can be written straight from its station record. Spring belongs to the cooling plant: 606 cooling degree days are coming, and the systems that will carry them are checked before the first of the 40.2 hot days arrives. Autumn belongs to the heating plant, ahead of 5,756 heating degree days and 147.4 freezing nights. The middle weeks belong to the unglamorous work — filters, drains, duct joints — that both seasons quietly depend on. The record at YAKIMA AIR TERMINAL, WA US does not change much year to year, which is what makes the calendar worth keeping.
Communities across Yakima County include Yakima, Sunnyside, Grandview and Terrace Heights — 14 listed places in all, spread over the county's 4,295 square miles in Washington. 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. Yakima County lies close to the centre of the Yakima metro, roughly 0 miles out, and the metro's era mix — 30.1% built before 1960, 28.0% between 1960 and 1979, median year 1976 — 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 Yakima County street belongs to is a local fact; that the bands exist, in these proportions, is the Census record this page is built on.
Put the county's coverage facts in one place and they read like this: 4,295 square miles of land in Washington, 14 listed communities, 20 ZIP codes, 0 neighbouring counties on the record, and a place inside the Yakima metro coverage. No single figure describes the county; the set of them does, and it is the set this page is organised around, from the climate record above to the community and ZIP lists below.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
Population 96,810
Population 16,329
Population 11,042
Population 9,480
Population 8,746
Population 8,301
Population 6,511
Population 4,577
Population 4,545
Population 3,658
Population 3,570
Population 3,163
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 Yakima County and the Yakima 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