Brown County, WI Water Table Trend
Brown County's groundwater trend, from USGS's own readings
Brown County's representative monitoring well shows depth to water rising, getting shallower over time, a fitted trend of 20 ft per decade over 74 years of readings.
One well stands in for Brown 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 52.4 ft below land surface. Readings span 1952-06-29 to 2026-10-19, 29 measurements from USGS well USGS-443035088045501 (Bn-24/20e/33-0099), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Brown County ranks
Of the 1,449 US counties with a usable trend, Brown County ranks 9th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 273,909 people live in Brown County, Wisconsin. See the fastest-moving counties guide for how Brown County stacks up against the most extreme cases nationally.
A dropping table says nothing about water quality
Whether Brown 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.