Washington County, Oregon, read at county level: 23 ZIP codes and 6 communities inside the Portland 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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Start here if you read nothing else: this page covers Washington County, Oregon — 724 square miles, 6 listed communities, a centroid west of the Portland metro's centre. Its climate record, from VANCOUVER PEARSON AP, WA US, sets a heating pressure on its systems. TempReach USA publishes the homework and routes the call; an independent local HVAC technician serving the county does the work.
One record, one county: the normals at VANCOUVER PEARSON AP, WA US — 4,400 heating degree days, 400 cooling degree days, 37.47 inches of precipitation, an average temperature of 54.0 degrees — applied to Washington County's own 724 square miles and its 23 ZIP codes. The figures are the Portland metro's; the ground they are applied to, lying west of the Portland metro's centre, is this county's alone, and this section reads the two together.
Heating pressure in Washington County can be counted in codes as well as in degree days. From 97003 through 97117 to 97229, the county's 23 ZIP codes divide 724 square miles of housing that one cold record — 4,400 heating degree days, 44.8 freezing nights, kept at VANCOUVER PEARSON AP, WA US — examines in a single night. The fault is usually an old one, an igniter or an exchanger at the end of its winters; the ground it is found on, code by code, is what makes the diary this county's.
The county's ground shapes the work in one more way: 724 square miles is a lot of roofs for a service map to hold, and Washington County's homes divide between its listed communities — Hillsboro, Beaverton, Tigard, Aloha, Bethany, Tualatin — and the roads between them. A technician routed here is working a county, not a street: the drive between calls is part of the diary, and the systems at each end of it were fitted in the decades those communities were built.
23 ZIP codes reach into Washington County's 724 square miles, among them 97003, 97005, 97006, 97007 — an average of 31.5 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.
Neighbouring counties are the honest context for Washington County's figures. Its 724 square miles sit inside a wider spread of county ground — Clackamas County, Clark County, Columbia County are among the 6 neighbours on its record — and its position west of the Portland metro's centre places it on its own side of that spread. A system near the county's edge may be closer to a neighbouring county's centre than to its own; the pages are organised by county because the data is, and the links between them carry the rest of the picture.
Two numbers organise Washington County's heating and cooling year: 4,400 and 400, the heating and cooling degree days in the normals at VANCOUVER PEARSON AP, WA US. Whichever runs larger decides the county's dominant pressure — here, a heating one — and with it the season a household should prepare for first. The supporting figures fill in the texture: 54.0 degrees as the year's average temperature, 14.6 hot days, 44.8 freezing nights, 37.47 inches of precipitation. Every paragraph on this page is, in the end, a reading of those six numbers on this county's ground.
The county's place list tells its own story. Hillsboro (107,050 residents) is the largest of the 6 communities the record names for Washington County, with Beaverton (97,502 residents) behind it and Tigard and Aloha 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 housing behind Washington County's systems is the Portland metro's housing, read at county scale. The largest single share of the metro's homes was built between 1980 and 1999 — 27.2% of the stock — with 46.2% of homes predating 1980 and 26.5% arriving since 2000, around a median build year of 1983. Inside the county those eras divide by community and by street, but the proportions set the diary: a stock weighted to between 1980 and 1999 produces the service patterns of that era's systems, ducts and insulation, in this county as across the metro.
The county is worth a page of its own because its facts do not reduce to its metro's. The Portland metro supplies the climate station and the housing profile, but Washington County supplies everything at ground level: 724 square miles, its own communities and codes, its own neighbours — Clackamas County, Clark County, Columbia County among the 6 on its list — and its own position, west of the Portland metro's centre. The metro page and this page link to each other because neither half of that picture stands well without the other.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
Population 107,050
Population 97,502
Population 55,395
Population 53,362
Population 31,700
Population 27,710
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 Washington County and the Portland 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