Multiple scenarios could be the reason for low pressure. If low water pressure is isolated to one faucet, a calcium deposit build up may be the culprit. Unscrew the faucet head and remove the aerator (screen filter). A simple solution of water and vinegar can be used to clean the aerator.
With the faucet head off, turn the water on to verify if the pressure has increased with the removal of the aerator. If the pressure has increased, turn off the water, clean the aerator and screw the faucet head/aerator back on. If the pressure does not increase when the aerator is removed, this could be an overall plumbing concern.
Public Works staff can perform an inspection to verify all valves are in proper working condition at the City side. Plumbing concerns on private property will be the resident's responsibility.