ZIP code · Cave Creek
Finding water leaks in 85331 (Cave Creek)
What the Census says about the housing in 85331, and what it means for a hidden leak.
85331 covers parts of Cave Creek, Phoenix and unincorporated Maricopa County, where the typical home was built in 1998. It is the most useful thing to know about a property nobody has seen yet: build year picks the material, and here that means copper, with CPVC and early PEX appearing towards the end.
For age, 85331 sits between the two extremes on this site, and so does the pipe under it.
| What the housing in 85331 is | Figure |
|---|---|
| Median year housing was built | 1998 |
| Built before 1980 | 8 percent |
| Build era | Late-1980s through 1990s |
| Built since 2000 | 41 percent |
| Likely supply material | copper, with CPVC and early PEX appearing towards the end |
| Largest decade of building | 1990s (43 percent) |
| What tends to fail first | Mixed-material houses are the awkward ones: the failure point is often the transition fitting between two materials rather than either run itself. |
| Owner-occupied households | 92 percent |
| What we listen for | A leak signal alongside a mechanical one, because a joint between two materials moves as well as leaks |
| Single-family detached homes | 90 percent |
| Land area | about 131 square miles |
Housing figures: U.S. Census Bureau, American Community Survey 5-year estimates (2023), for ZIP Code Tabulation Area 85331. Town coverage: U.S. Census Bureau, 2020 ZCTA-to-Place relationship file.
How far does the water line run before it reaches a house in 85331?
Further than most people expect. There are about 131 square miles inside 85331 and not much housing per mile of it. The run between meter and house can be most of the distance.
Everything on the house side of the meter belongs to the owner. There is nothing to see indoors when the loss is out in the yard. The reading is the only symptom.
So we start with the route rather than the sound. Put a signal on the line, walk its real route, then listen along it. See underground leak detection.
Was 85331 built all at once?
Close to it: about 43 percent of the homes in 85331 went up in the 1990s. One decade sets the tone for the whole boundary.
A block of housing that size from the 1990s means the pipe repeats too. Same material, run the same way, failing in the same places.
So what we learn on one 85331 street is worth something on the next. It shortens the list of tests; it does not replace them.
Part of 85331 is outside any city limit. Does that matter?
No — a good deal of it is county land. About 61 percent of the land in 85331 sits outside any incorporated city or town. Records and permitting work differently on that side of the line.
On the county part of 85331 the utility arrangements vary property to property. It is one of several things this page will not guess at.
Meter or no meter, the sequence in 85331 is the same one. Prove it first, locate it second. See water leak detection and underground leak detection.
Does an empty house in 85331 need checking?
It runs until somebody looks. An empty 85331 house has nobody to notice damp or hear a hiss.
Two numbers and a date is a leak test. Note the reading with the 85331 house shut off before you go. A second reading a month later tells you everything.
Seasonal and empty properties come up often enough here to have their own page. See vacant and seasonal home leak checks.
85331 sits inside Cave Creek. The Cave Creek area page covers the ground this ZIP code is part of.
Straight answers
Questions we get about 85331
How old is the housing in 85331?
Most of 85331 dates from around 1998, going by the U.S. Census Bureau. The source is the American Community Survey, five-year estimates for 2023. It places most of the housing in the late-1980s through 1990s era, which is what decides the supply material.
What are the water pipes in 85331 likely to be made of?
Probably copper, with CPVC and early PEX appearing towards the end: 85331 was built around 1998. No page can tell you what is under your own slab. Previous work changes the answer, and often has. Pressure settles it at the address, not from a table.
There is no damp anywhere in the house but the bill keeps climbing. Is that possible in 85331?
Yes — it is one of the more common calls we take from 85331. 85331 covers about 131 square miles with comparatively little housing in it. A long buried run between meter and house can lose water for months with nothing to see.
Do you need to know which water utility serves 85331 before you come out?
No — it makes no difference to the work. We could not verify which provider serves which street in 85331, so this site names none. The bill and a reading off your own meter tell us what we need.
What people in 85331 call us about
ZIP codes next to 85331
Not sure whether it is the house or the pool in 85331?
Text us the meter reading and a picture of whatever you can see. Say how long it has been happening, and whether anything in the house changed.
5.0 on Google
What customers in the Phoenix valley have written. The words are theirs, on listings we cannot edit.
“Humberto has been amazing! Prompt, professional, and patient. He has gone above and beyond, taking the time to show me how to operate the water valves and educating me so I can continue to monitor for future leaks. He identified multiple leaks and made thoughtful recommendations.”
“Beto was very professional, thorough and patient in explaining everything he was doing and why. It was an excellent and well worth it experience, and this is saying something for an architect who had a hundred questions!”
“The owner and operator of this company is everything a contractor should be. On time, honest, competent, reachable, comprehensive. Hope to work with him again in the future.”