Is the water table dropping where I live?

All 3,222 US counties. Start typing.

Depth-to-water trends from USGS long-term monitoring wells, county by county, en route to 1,529 wells covering 1,449 of 3,222 US counties. Where no well has a long enough record, this site says so instead of guessing.

Where the 1,449 counties with a trend actually land

169 Declining fast 165 Declining, typical pace 160 Declining slowly 602 Stable 353 Rising

Each segment is sized by how many counties actually fall there, from USGS's own well readings; the fastest-declining on record is Jones County, IA.

If your county turns out to be declining

A dropping water table means a residential pump reaches deeper and works harder, which shortens its life long before the well itself runs dry. That is a different, more useful question than "will it run dry," and every declining county's page names the pace of decline so you can judge it rather than guess.

Browse all 3,222 counties by state

The question this site answers

"Will my well run dry" doesn't have a national answer: USGS tracks depth to water county by county, through a scattered network of long-term monitoring wells, not a bulk survey of every property. WaterTableCheck fits a trend to each qualifying well's own history and reports it plainly, including for the 1773 counties where no well yet has enough record to call one.

Why only 45% of counties have an answer

A county only gets a trend here if USGS's own National Groundwater Monitoring Network has a well with at least 15 years of readings, a reading within the last 10 years, and 6 or more usable measurements. Monitoring-well placement follows decades of state and federal programs, not population or risk, so coverage is uneven: dense in parts of the West and Midwest, sparse elsewhere. That gap is reported directly rather than filled with a guess.