In general, the residential natural gas pressure is less than 1/4 pound per square inch. In areas where the distribution pipeline pressure is greater than the residential pressure, the meter includes a regulator to decrease it to the correct operating range.
The residential pressure of natural gas is only slightly higher than air pressure. It is approximately the same pressure blowing bubbles through a straw into a glass of milk requires. When a gas valve opens, the gas moves through the burner because of the higher pressure.
The distribution system involves many miles of pipelines and valves. It opens and closes regulator valves as necessary to maintain the natural gas at the proper pressure for each segment of the system.