Linn County, Iowa, read at county level: 22 ZIP codes and 8 communities inside the Cedar Rapids 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.
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
Linn County in one paragraph: 717 square miles in Iowa, 22 ZIP codes, a heating climate pressure read from the normals at CEDAR RAPIDS MUNI AP, IA US, and housing that answers 6,824 heating degree days against 755 cooling degree days a year. TempReach USA is a referral service, not an HVAC company — one call connects you with an independent local HVAC technician serving this county.
Read Linn County's weather the way this page reads it: through the thirty-year normals kept at CEDAR RAPIDS MUNI AP, IA US for the Cedar Rapids metro. Those normals give the county 755 cooling degree days and 6,824 heating degree days a year, 35.91 inches of precipitation, 11.9 days at 90 degrees or above, 144.2 nights at or below freezing, and an average temperature of 48.2 degrees — the fixed background every system in the county works against.
The heating season also has an address pattern in Linn County. Its 22 ZIP codes divide 717 square miles into service ground where the same January night lands on older streets, subdivisions and edge communities at once, and the county's position — close to the centre of the Cedar Rapids metro, roughly 1 miles from the metro's centre — shapes which parts of the county feel the Cedar Rapids metro's cold at full strength. The systems answer accordingly: one long heating season, read ZIP by ZIP, with the oldest furnaces and heat exchangers carrying the heaviest share of it.
The county's ground shapes the work in one more way: 717 square miles is a lot of roofs for a service map to hold, and Linn County's homes divide between its listed communities — Cedar Rapids, Marion, Hiawatha, Mount Vernon, Robins, Fairfax — 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.
A ZIP code in Linn County is a small climate-and-housing district of its own. The county's 22 codes — 52202, 52213, 52214, 52218 among them — all read the same normals from CEDAR RAPIDS MUNI AP, IA US, yet the systems inside them were installed in different decades, serve different house sizes, and fail in different orders. That is why this page prints the whole list rather than a summary: the codes are the finest division of the county the data supports, and they are the division the work itself follows.
Position first: Linn County lies close to the centre of the Cedar Rapids metro, roughly 1 miles from the metro's centre as the map measures it, with Benton County, Jones 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.
The precipitation figure earns its place in Linn County's record: 35.91 inches a year at CEDAR RAPIDS MUNI AP, IA US, falling through both the cooling months and the heating ones. Rain loads condensate systems in summer, tests outdoor units and venting in winter, and keeps the ground around the county's 22 ZIP codes cycling between wet and dry in a way that shows up in crawl spaces and condensate lines. Set beside 11.9 hot days and 144.2 freezing nights, it completes the picture of what the county's equipment actually lives in.
The county's place list tells its own story. Cedar Rapids (136,859 residents) is the largest of the 8 communities the record names for Linn County, with Marion (41,690 residents) behind it and Hiawatha and Mount Vernon 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.
Look at the second era as well as the first and Linn County's stock comes into focus. After the dominant band — homes built before 1960, 30.4% of the metro's total — the next share was built between 1960 and 1979, at 25.1%. Between them those two bands account for most of the systems a technician will open in this county, and they are different machines in different houses: the earlier band's equipment fitted into older envelopes, the later band's into the standards of its own decade. The county's diary is the two bands, interleaved street by street.
A reader who only had Linn County's identifying figures would already know its shape: a county of 717 square miles in Iowa, 22 ZIP codes, 8 communities on the record, sitting close to the centre of the Cedar Rapids metro. 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 136,859
Population 41,690
Population 7,178
Population 4,551
Population 3,349
Population 2,865
Population 2,575
Population 2,033
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 Linn County and the Cedar Rapids 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