Bonneville County, Idaho, read at county level: 11 ZIP codes and 6 communities inside the Idaho Falls 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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In brief: 1,866 square miles of Idaho, a climate read from IDAHO FALLS FANNING FLD, ID US's normals, and a heating pressure as the county's dominant one — 7,792 heating degree days set against 249 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 Bonneville County.
One record, one county: the normals at IDAHO FALLS FANNING FLD, ID US — 7,792 heating degree days, 249 cooling degree days, 10.07 inches of precipitation, an average temperature of 44.2 degrees — applied to Bonneville County's own 1,866 square miles and its 11 ZIP codes. The figures are the Idaho Falls metro's; the ground they are applied to, lying southeast of the Idaho Falls metro's centre, is this county's alone, and this section reads the two together.
Heating writes this county's HVAC calendar. With 7,792 heating degree days against 249 cooling degree days in the normals recorded at IDAHO FALLS FANNING FLD, ID US, the systems across Bonneville County earn their keep in the cold half of the year: furnaces and heat pumps cycling through 182.3 nights at or below freezing, when a breakdown stops being a comfort problem and becomes a household one. The pressure shows up as midwinter failures on the oldest equipment first, and a maintenance calendar that has to be kept in autumn — because by the time the cold arrives, the county's systems are already on stage.
The county's ground shapes the work in one more way: 1,866 square miles is a lot of roofs for a service map to hold, and Bonneville County's homes divide between its listed communities — Idaho Falls, Ammon, Lincoln, Iona, Ucon, Alpine — 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.
The ZIP list is the county's working map. Bonneville County carries 11 codes, running from 83120 through 83406 in the middle of the list to 83454 at its end, and every code on it is a small housing census of its own — the building decades, the system generations, the duct materials of its streets. Heating and cooling work routed by those codes meets the county in slices, and the slices differ more than the county's shared climate record would suggest.
Position first: Bonneville County lies southeast of the Idaho Falls metro's centre, roughly 41 miles from the metro's centre as the map measures it, with Butte County, Jefferson 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.
Two numbers organise Bonneville County's heating and cooling year: 7,792 and 249, the heating and cooling degree days in the normals at IDAHO FALLS FANNING FLD, ID 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: 44.2 degrees as the year's average temperature, 26.4 hot days, 182.3 freezing nights, 10.07 inches of precipitation. Every paragraph on this page is, in the end, a reading of those six numbers on this county's ground.
Name the ground and the work follows: in Bonneville County, the 6 listed communities — Idaho Falls, Ammon, Lincoln, Iona 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 1,866 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.
Age is the county's second climate. The Idaho Falls metro's median home was built in 1985, and 45.5% of its homes predate 1980 — in Bonneville County, that share is the older districts and the long-settled communities, where ductwork from an earlier equipment era still serves replacement systems. The newer share, 34.2% built since 2000, concentrates in the county's growth edges. The service diary divides along that line: deep equipment-and-duct conversations at the old end, first-replacement and control conversations at the new one.
A reader who only had Bonneville County's identifying figures would already know its shape: a county of 1,866 square miles in Idaho, 11 ZIP codes, 6 communities on the record, sitting southeast of the Idaho Falls metro's centre. What the figures cannot say alone is how the ground feels to work — the drives between calls, the mix of decades in the housing, the season that runs taller — and that is what the rest of this page is for, section by section.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
Population 66,672
Population 18,496
Population 3,759
Population 2,882
Population 1,537
Population 978
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 Bonneville County and the Idaho Falls 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