The county-level homework for St. James Parish, Louisiana — its 238 square miles, its 7 ZIP codes, its place inside the New Orleans metro's coverage. TempReach USA connects homeowners here with independent local HVAC technicians; the record behind the routing is on this page.
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The short version of this page: St. James Parish runs to 238 square miles, its weather is the record kept at NEW ORLEANS ALVIN CALLENDER FL, LA US — 1,425 heating degree days, 2,615 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.
Before the narrative, the numbers themselves, because everything after them is commentary: at NEW ORLEANS ALVIN CALLENDER FL, LA US, the station whose NOAA 1991-2020 normals this county is read through, an average year holds 64.4 days at 90 degrees or above, 10.8 nights at or below freezing, 63.8 inches of precipitation and degree-day totals of 1,425 heating against 2,615 cooling. Spread over 238 square miles, with the county's centroid northwest of the New Orleans metro's centre and roughly 46 miles from the centre it is measured against, that record is St. James Parish's working climate.
Read the climate record and the county's pressure names itself. Precipitation of 63.8 inches a year at NEW ORLEANS ALVIN CALLENDER FL, LA US, layered over 2,615 cooling degree days, means St. James Parish's heating and cooling is moisture management wearing a temperature costume. Homes across its 238 square miles ask their systems to dry the air as much as to cool it — and the systems that answer well are the ones sized, charged and drained with that double duty in mind.
The county's ground shapes the work in one more way: 238 square miles is a lot of roofs for a service map to hold, and St. James Parish's homes divide between its listed communities — — 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.
Routing in St. James Parish is written in five digits. The county's codes begin at 70052 and run to 70763, 7 in total, and between the first and the last sits the county's full spread of ground — 238 square miles from the metro-facing edge to the far side. A technician's week here is a tour of those codes, and the tour is also a tour of the county's building history, because each code's systems were largely fitted when that code's streets were built.
Neighbouring counties are the honest context for St. James Parish's figures. Its 238 square miles sit inside a wider spread of county ground — St. Bernard Parish, St. Charles Parish, St. John the Baptist Parish are among the 6 neighbours on its record — and its position northwest of the New Orleans 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.
A service calendar for St. James Parish can be written straight from its station record. Spring belongs to the cooling plant: 2,615 cooling degree days are coming, and the systems that will carry them are checked before the first of the 64.4 hot days arrives. Autumn belongs to the heating plant, ahead of 1,425 heating degree days and 10.8 freezing nights. The middle weeks belong to the unglamorous work — filters, drains, duct joints — that both seasons quietly depend on. The record at NEW ORLEANS ALVIN CALLENDER FL, LA US does not change much year to year, which is what makes the calendar worth keeping.
The codes carry the community story in St. James Parish: 7 of them, from 70052 through to 70763, at 34.0 square miles per code across the county's 238 square miles. Nobody here describes a call by its town, because the record gives the county no towns to describe it by; they describe it by its code and its road. The housing behind those codes was still built decade by decade, and the systems still age decade by decade — the county simply files the diary by ZIP instead of by place.
Spread the metro's eras over St. James Parish's own ground and the housing paragraph becomes a map: 238 square miles, 7 ZIP codes at 34.0 square miles per code, and a stock whose largest band was built between 1960 and 1979 (33.5%), whose pre-1980 share runs to 64.7% and whose post-2000 share runs to 15.3%. The percentages are the metro's; the streets they land on are this county's, and a technician driving from one end of the county to the other drives through the bands in sequence.
Coverage, for St. James Parish, is a set of overlapping maps. The land map is 238 square miles. The address map is 7 ZIP codes and 0 listed communities. The service map is the New Orleans metro, whose coverage the county sits inside — northwest of the New Orleans metro's centre, roughly 46 miles from its centre. The weather map is one station's record, kept at NEW ORLEANS ALVIN CALLENDER FL, LA US. A home in this county lives on all four maps at once, and its heating and cooling needs are set by the combination.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
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 St. James Parish and the New Orleans 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