In general, private home wells tend to range from 100 to 500 feet in depth. However, they can be much deeper than this in some cases. There are even some wells that go past the 1,000 foot mark. The average well depth in your area will depend on several factors.

What is considered a deep well?

If the water table is at 50 feet, a deep well might be 100 feet deep. For many wells drilled into the sand and gravel aquifer, the amount of casing—the pipe that lines the well hole—is nearly the same as the depth of the well itself.

How far down is a deep well?

Most household water wells range from 100 to 800 feet deep, but a few are over 1,000 feet deep. Well yields can be increased by fracturing the bedrock immediately around the drill hole and intercepted rock faults.