Average US Water Pressure

[jchmilew]

I'm trying to figure out the average static water pressure for all homes in the US and also the standard deviation from that average. What percentage of people live with <30 PSI, how many with >70? Do any homes deal with pressures below 20 PSI?

It would be great if someone could point me to a bell curve for all of this info but if anyone could even just make their best guess I would very much appreciate it.

 

[journeyman]

code states any building with pressure over 80 psi needs to be regulated. homes with copper pipe will usually have a pressure of 60-65 psi. homes with plastic pipe are usually set around 50-55 psi. your home should have a regulator on the main