Madison County, NY Water Table Trend
Madison County's groundwater trend, from USGS's own readings
Over 61 years of USGS readings, the well tracking Madison County's aquifer is holding roughly steady: 0.2 ft per decade.
One well stands in for Madison County's whole aquifer here, the honest simplification every page on this site carries.
What the well actually measured
The most recent reading put water 11.1 ft below land surface. Readings span 1965-11-29 to 2026-10-26, 652 measurements from USGS well USGS-430056075354102 (Local Number, M-178, Valley Mills Ny), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Madison County ranks
Of the 1,449 US counties with a usable trend, Madison County ranks 474th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 67,072 people live in Madison County, New York. See the fastest-moving counties guide for how Madison County stacks up against the most extreme cases nationally.
A dropping table says nothing about water quality
Whether Madison County's water table is rising or falling is independent of what's actually in the water. Depletion can concentrate naturally-occurring minerals, so it's worth checking directly with a water test rather than assuming a depth trend says anything about quality.