U.S. Water Well Data

Water Well Map compiles water well records from official state sources across the United States: locations, depths, water levels, yields, well types, and — for many states — links to each well's official drilling report. Pick a state below for detailed statistics and charts.

Our database currently holds 15,097,581 wells across 41 states (last updated August 23, 2026).

Data by State

Coming Soon

We're building these out from the USGS national groundwater databases:

Well Types

Where states record it, every well is classified by its use. On the interactive map you can color and filter wells by these types:

• Domestic
• Irrigation
• Stock
• Agriculture
• Geothermal
• Public Supply
• Monitoring / Test
• Abandoned / Inactive
• Other / Unknown

Many states record only that a well exists (or that it withdraws water) without a use — those appear as Other / Unknown.

Data is collected from public sources. No warranty, expressed or implied, is made by Water Well Map or Gammastream Technologies, Inc. as to the accuracy of the data and related materials.