What is city water pressure?

The residential water pressure is usually between 45 and 80 psi. The minimum pressure required by most codes is 20 psi, and anything below that is considered too low. The pressures are too high.Residential water pressure generally varies between 45 and 80 psi (free for square inches). Something less than 40 psi is considered low and something less than 30 psi is considered too low the minimum pressure required by most codes is 20 psi. The pressure above 80 psi is too high.